From f56f5d756f412e9c7058e2af4e36bc1de21dd642 Mon Sep 17 00:00:00 2001
From: solar <unknown>
Date: Thu, 1 Jul 2010 06:01:30 +0000
Subject: [PATCH] More improved unified tests (now life).

---
 functions/stdio/fscanf.c             |    8 +-
 functions/stdio/scanf_testcases.incl |   13 +-
 functions/stdio/sscanf.c             | 1617 +-------------------------
 functions/stdio/vfscanf.c            |   16 +-
 functions/stdio/vsscanf.c            |   25 +-
 5 files changed, 49 insertions(+), 1630 deletions(-)

diff --git a/functions/stdio/fscanf.c b/functions/stdio/fscanf.c
index f45db49..b560448 100644
--- a/functions/stdio/fscanf.c
+++ b/functions/stdio/fscanf.c
@@ -26,11 +26,13 @@ int fscanf( FILE * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format
 #ifdef TEST
 #include <_PDCLIB_test.h>
 
+#include "scan_test.h"
+
 int main( void )
 {
-    /* FILE * fp = fopen( "functions/stdio/testfile.txt", "rb" ); */
-
-    TESTCASE( NO_TESTDRIVER );
+#define SCANFUNC( source, format, ... ) fscanf( source, format, __VA_ARGS__ )
+#include "fscan_sources.incl"
+#include "scanf_testcases.incl"
     return TEST_RESULTS;
 }
 
diff --git a/functions/stdio/scanf_testcases.incl b/functions/stdio/scanf_testcases.incl
index e9680bc..71ddccc 100644
--- a/functions/stdio/scanf_testcases.incl
+++ b/functions/stdio/scanf_testcases.incl
@@ -875,7 +875,6 @@
     // reading 0x80000000, i
     signed int i = -1;
     TESTSCAN( 1, 10, hexadecimal, 62, SCANPARMS( "%i", &i ) );
-    printf( "found %d, expected -2147483648\n", i );
     CHECK_FEQUAL( i, -2147483648, signed int, "%d" ); /* FIXME */
     }
     {
@@ -1163,18 +1162,30 @@
        - The conversion should therefore result in a matching failure
          according to 7.19.6.2 paragraph 10.
     */
+#ifdef REGTEST
+    printf( "        The following is likely to fail. Check stdio/scanf_testcases.c\n"
+            "        for an explanation why.\n" );
+#endif
     TESTSCAN( 0, -1, special, 0, SCANPARMS( "%hhx", &i ) ); /* May fail on regtest */
     CHECK_EQUAL( i, 1 ); /* FIXME */
     }
     {
     // reading -0x, x
     unsigned short i = 1;
+#ifdef REGTEST
+    printf( "        The following is likely to fail. Check stdio/scanf_testcases.c\n"
+            "        for an explanation why.\n" );
+#endif
     TESTSCAN( 0, -1, special, 0, SCANPARMS( "%hx", &i ) ); /* May fail on regtest */
     CHECK_EQUAL( i, 1 ); /* FIXME */
     }
     {
     // reading -0x, x
     unsigned int i = 1;
+#ifdef REGTEST
+    printf( "        The following is likely to fail. Check stdio/scanf_testcases.c\n"
+            "        for an explanation why.\n" );
+#endif
     TESTSCAN( 0, -1, special, 0, SCANPARMS( "%x", &i ) ); /* May fail on regtest */
     CHECK_EQUAL( i, 1 ); /* FIXME */
     }
diff --git a/functions/stdio/sscanf.c b/functions/stdio/sscanf.c
index 477ed67..d40b14e 100644
--- a/functions/stdio/sscanf.c
+++ b/functions/stdio/sscanf.c
@@ -26,1621 +26,14 @@ int sscanf( const char * _PDCLIB_restrict s, const char * _PDCLIB_restrict forma
 #ifdef TEST
 #include <_PDCLIB_test.h>
 
-#include <string.h>
-#include <limits.h>
-
-#define CHECK_TRUE( a ) TESTCASE( a != 0 )
-#define CHECK_FALSE( a ) TESTCASE( a == 0 )
-#define CHECK_EQUAL( a, b ) do { int x = a; int y = b; TESTCASE( x == y ); } while ( 0 )
-#define CHECK_FEQUAL( a, b, T, F ) do { T x = a; T y = b; TESTCASE( x == y ); } while ( 0 )
-
-// literal matches, character matches, and basic integer matches
-void suite_one( void );
-// decimal integer matches
-void suite_two( void );
-// hexadecimal integer matches
-void suite_three( void );
-// octal integer matches
-void suite_four( void );
-// string matches
-void suite_five( void );
-// 0xz special case
-void suite_six( void );
+#include "scan_test.h"
 
 int main()
 {
-    suite_one();
-    suite_two();
-    suite_three();
-    suite_four();
-    suite_five();
-#ifndef REGTEST
-    // This test driver fails for many common libraries, so it's disabled for
-    // regression testing. See the function for explanation.
-    suite_six();
-#endif
-}
-
-// literal matches, character matches, and basic integer matches
-void suite_one()
-{
-    char const * string = "12345678901\0003-5+7\0009\3772 4 6 8 0\3771 \011 5%%  0";
-    CHECK_EQUAL( string[39], '0' );
-
-    // -----------------------------------------------------------------------
-    // Literal matching
-    // -----------------------------------------------------------------------
-    {
-    // matching six characters literally
-    // checking via %n
-    // should report six characters read
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "123456%n", &n ), 0 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // matching a character, three whitespace chars, and another character
-    // checking via %n
-    // should report five characters read
-    int n;
-    CHECK_EQUAL( sscanf( string + 30, "1 5%n", &n ), 0 );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // matching three characters, not matching whitespaces, and matching another three characters
-    // checking via %n
-    // should report six characters matched
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "123  456%n", &n ), 0 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // matching a character, two '%' characters, and two whitespaces
-    // checking via %n
-    // should report five characters matched
-    int n;
-    CHECK_EQUAL( sscanf( string + 34, "5%%%% %n", &n ), 0 );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // seeking to last character in file, trying to match that char and a whitespace
-    // checking via %n
-    // should report one character matched and EOF
-    int n;
-    CHECK_EQUAL( sscanf( string + 39, "0 %n", &n ), 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // seeking to end of file, trying to match a -1
-    // checking via %n
-    // should report error, not executing %n
-    int n = -1;
-    CHECK_EQUAL( sscanf( string + 0, "\377%n", &n ), 0 );
-    CHECK_EQUAL( n, -1 );
-    }
-
-    // -----------------------------------------------------------------------
-    // Character matching ('%c')
-    // -----------------------------------------------------------------------
-    {
-    // reading a char array of specified width, including zero bytes
-    // should report the characters read up to first zero
-    char buffer[ 8 ];
-    memset( buffer, '\177', 8 );
-    CHECK_EQUAL( sscanf( string + 10, "%7c", buffer ), 1 );
-    CHECK_FALSE( memcmp( buffer, "1\177\177", 3 ) );
-    }
-    {
-    // reading a char array of unspecified width when positioned at -1 value 
-    // should default to width one, read the -1 value, no zero termination of the array
-    char buffer[ 2 ];
-    memset( buffer, '\177', 2 );
-    CHECK_EQUAL( sscanf( string + 19, "%c", buffer ), 1 );
-    CHECK_FALSE( memcmp( buffer, "\377\177", 2 ) );
-    }
-    {
-    // reading a char array of specified width 1 when positioned at (non-space) whitespace
-    // should read the whitespace (literally), no zero termination of the array
-    char buffer[ 2 ];
-    memset( buffer, '\177', 2 );
-    CHECK_EQUAL( sscanf( string + 32, "%1c", buffer ), 1 );
-    CHECK_FALSE( memcmp( buffer, "\011\177", 2 ) );
-    }
-    {
-    // reading a char array of specified width 2 when positioned at last char of file
-    // should read the character, and report EOF
-    char buffer[ 2 ];
-    memset( buffer, '\177', 2 );
-    CHECK_EQUAL( sscanf( string + 39, "%2c", buffer ), 1 );
-    CHECK_FALSE( memcmp( buffer, "0\177", 2 ) );
-    }
-    {
-    // reading a char array of specified width 1 when positioned at last char of file
-    // should read the character, and NOT report EOF
-    char buffer[ 2 ];
-    memset( buffer, '\177', 2 );
-    CHECK_EQUAL( sscanf( string + 39, "%1c", buffer ), 1 );
-    CHECK_FALSE( memcmp( buffer, "0\177", 2 ) );
-    }
-    {
-    // reading a char array of specified width 1 when positioned at EOF
-    // should report input error before any conversion (-1)
-    char buffer[ 2 ];
-    memset( buffer, '\177', 2 );
-    CHECK_EQUAL( sscanf( string + 40, "%1c", buffer ), -1 );
-    CHECK_FALSE( memcmp( buffer, "\177\177", 2 ) );
-    }
-
-    // -----------------------------------------------------------------------
-    // Integer matching ('%d')
-    // -----------------------------------------------------------------------
-    {
-    // reading a whitespace-terminated integer
-    int i;
-    int n;
-    CHECK_EQUAL( sscanf( string + 20, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading a -1 terminated integer
-    int i;
-    int n;
-    CHECK_EQUAL( sscanf( string + 18, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 9 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading a EOF terminated integer
-    int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 39, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // trying to read an integer when positioned at whitespace
-    // should skip whitespaces
-    int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 32, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 5 );
-    CHECK_EQUAL( n, 3 );
-    }
-    {
-    // trying to read an integer when positioned at -1 value
-    // should report matching failure
-    int i = 0;
-    int n = -1;
-    CHECK_EQUAL( sscanf( string + 19, "%d%n", &i, &n ), 0 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, -1 );
-    }
-    {
-    // trying to read an integer when positioned at EOF
-    // should report reading failure
-    int i = 0;
-    int n = -1;
-    CHECK_EQUAL( sscanf( string + 40, "%d%n", &i, &n ), -1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, -1 );
-    }
-    {
-    // reading a '-'-prefixed integer
-    int i;
-    int n;
-    CHECK_EQUAL( sscanf( string + 13, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, -5 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading a '+'-prefixed integer
-    int i;
-    int n;
-    CHECK_EQUAL( sscanf( string + 15, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 7 );
-    CHECK_EQUAL( n, 2 );
-    }
-}
-
-// decimal integer matches
-void suite_two()
-{
-    char const * string = "-0 +0 -128 +127 +255 -32768 +32767 +65535\n"
-                          "-2147483648 +2147483647 +4294967295\n"
-                          "-9223372036854775808 +9223372036854775807\n"
-                          "+18446744073709551615\n";
-    CHECK_EQUAL( string[141], '\n' );
-    {
-    // reading 0, d
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%hhd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, d
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hhd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, d
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%hhd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -128, d
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 6, "%hhd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, -128 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 127, d
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 12, "%hhd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 127 );
-    CHECK_EQUAL( n, 3 );
-    }
-    {
-    // reading +127, d
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 11, "%hhd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 127 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 0, u
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%hhu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, u
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hhu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, u
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%hhu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading 127, u
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 12, "%hhu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 127 );
-    CHECK_EQUAL( n, 3 );
-    }
-    {
-    // reading +127, u
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 11, "%hhu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 127 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 255, u
-    unsigned char i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 17, "%hhu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 255 );
-    CHECK_EQUAL( n, 3 );
-    }
-    {
-    // reading +255, u
-    unsigned char i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 16, "%hhu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 255 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 0, i
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%hhi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, i
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hhi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, i
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%hhi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -128, i
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 6, "%hhi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, -128 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 127, i
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 12, "%hhi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 127 );
-    CHECK_EQUAL( n, 3 );
-    }
-    {
-    // reading +127, i
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 11, "%hhi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 127 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 0, d
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%hd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, d
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, d
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%hd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -32768, d
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 21, "%hd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, -32768 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 32767, d
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 29, "%hd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 32767 );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // reading +32767, d
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 28, "%hd%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 32767 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 0, u
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%hu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, u
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, u
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%hu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading 32767, u
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 29, "%hu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 32767 );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // reading +32767, u
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 28, "%hu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 32767 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 65535, u
-    unsigned short i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 36, "%hu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 65535 );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // reading +65535, u
-    unsigned short i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 35, "%hu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 65535 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 0, i
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%hi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, i
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, i
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%hi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -32768, i
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 21, "%hi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, -32768 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 32767, i
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 29, "%hi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 32767 );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // reading +32767, i
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 28, "%hi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 32767 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 0, d
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, d
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, d
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -2147483648, d
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 42, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, -2147483648 );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 2147483647, d
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 55, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647 );
-    CHECK_EQUAL( n, 10 );
-    }
-    {
-    // reading +2147483647, d
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 54, "%d%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647 );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 0, u
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%u%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, u
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%u%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, u
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%u%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading 2147483647, u
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 55, "%u%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647 );
-    CHECK_EQUAL( n, 10 );
-    }
-    {
-    // reading +2147483647, u
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 54, "%u%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647 );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 4294967295, u
-    unsigned int i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 67, "%u%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 4294967295, unsigned int, "%u" );
-    CHECK_EQUAL( n, 10 );
-    }
-    {
-    // reading +4294967295, u
-    unsigned int i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 66, "%u%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 4294967295, unsigned int, "%u" );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 0, i
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%i%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, i
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%i%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, i
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%i%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -2147483648, i
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 42, "%i%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, -2147483648 );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 2147483647, i
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 55, "%i%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647 );
-    CHECK_EQUAL( n, 10 );
-    }
-    {
-    // reading +2147483647, i
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 54, "%i%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647 );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 0, d
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%ld%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0l );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, d
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%ld%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0l );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, d
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%ld%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0l );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -2147483648, d
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 42, "%ld%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, -2147483648l );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 2147483647, d
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 55, "%ld%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647l );
-    CHECK_EQUAL( n, 10 );
-    }
-    {
-    // reading +2147483647, d
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 54, "%ld%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647l );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 0, u
-    unsigned long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%lu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ul );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, u
-    unsigned long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%lu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ul );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, u
-    unsigned long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%lu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ul );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading 2147483647, u
-    unsigned long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 55, "%lu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647ul );
-    CHECK_EQUAL( n, 10 );
-    }
-    {
-    // reading +2147483647, u
-    unsigned long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 54, "%lu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647ul );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 4294967295, u
-    unsigned long i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 67, "%lu%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 4294967295ul, unsigned long, "%lu" );
-    CHECK_EQUAL( n, 10 );
-    }
-    {
-    // reading +4294967295, u
-    unsigned long i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 66, "%lu%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 4294967295ul, unsigned long, "%lu" );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 0, i
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%li%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0l );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, i
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%li%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0l );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, i
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%li%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0l );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -2147483648, i
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 42, "%li%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, -2147483648l );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 2147483647, i
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 55, "%li%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647l );
-    CHECK_EQUAL( n, 10 );
-    }
-    {
-    // reading +2147483647, i
-    signed long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 54, "%li%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647l );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 0, d
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%lld%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ll );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, d
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%lld%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ll );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, d
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%lld%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ll );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -9223372036854775808, d
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 78, "%lld%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, LLONG_MIN, signed long long, "%lld" ); // should be literal -9223372036854775808ll but GCC balks.
-    CHECK_EQUAL( i < 0ll, 1 );
-    CHECK_EQUAL( n, 20 );
-    }
-    {
-    // reading 9223372036854775807, d
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 100, "%lld%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 9223372036854775807ll, signed long long, "%lld" );
-    CHECK_EQUAL( n, 19 );
-    }
-    {
-    // reading +9223372036854775807, d
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 99, "%lld%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 9223372036854775807ll, signed long long, "%lld" );
-    CHECK_EQUAL( n, 20 );
-    }
-    {
-    // reading 0, u
-    unsigned long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%llu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ull );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, u
-    unsigned long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%llu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ull );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, u
-    unsigned long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%llu%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ull );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading 9223372036854775807, u
-    unsigned long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 100, "%llu%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 9223372036854775807ull, unsigned long long, "%llu" );
-    CHECK_EQUAL( n, 19 );
-    }
-    {
-    // reading +9223372036854775807, u
-    unsigned long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 99, "%llu%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 9223372036854775807ull, unsigned long long, "%llu" );
-    CHECK_EQUAL( n, 20 );
-    }
-    {
-    // reading 18446744073709551615, u
-    unsigned long long i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 121, "%llu%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 18446744073709551615ull, unsigned long long, "%llu" );
-    CHECK_EQUAL( n, 20 );
-    }
-    {
-    // reading +18446744073709551615, u
-    unsigned long long i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 120, "%llu%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 18446744073709551615ull, unsigned long long, "%llu" );
-    CHECK_EQUAL( n, 21 );
-    }
-    {
-    // reading 0, i
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 1, "%lli%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ll );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0, i
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%lli%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ll );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading +0, i
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%lli%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0ll );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -9223372036854775808, i
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 78, "%lli%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, LLONG_MIN, signed long long, "%lli" ); // should be literal -9223372036854775808ll but GCC balks.
-    CHECK_EQUAL( i < 0ll, 1 );
-    CHECK_EQUAL( n, 20 );
-    }
-    {
-    // reading 9223372036854775807, i
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 100, "%lli%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 9223372036854775807ll, signed long long, "%lli" );
-    CHECK_EQUAL( n, 19 );
-    }
-    {
-    // reading +9223372036854775807, i
-    signed long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 99, "%lli%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 9223372036854775807ll, signed long long, "%lli" );
-    CHECK_EQUAL( n, 20 );
-    }
-}
-
-// hexadecimal integer matches
-void suite_three()
-{
-    char const * string = "-0x0 -0x000 -0x7f 0x80 0xff -0x7fff 0x8000\n"
-                          "0xffff -0x7fffffff 0x80000000 0xffffffff\n"
-                          "-0x7fffffffffffffff 0x8000000000000000\n"
-                          "0xffffffffffffffff\n";
-    CHECK_EQUAL( string[141], '\n' );
-    {
-    // reading 0, x
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%hhx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0x0, x
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hhx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 0x000, x
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 5, "%hhx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 0x0, i
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hhi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 7f, x
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 15, "%hhx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 127 );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading -0x7f, x
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 12, "%hhx%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, -127, unsigned char, "%hhu" );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // reading 0x80, i
-    signed char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 18, "%hhi%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, -128, signed char, "%hhd" );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading ff, x
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 25, "%hhx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0xff );
-    CHECK_EQUAL( n, 2 );
-    }
-    {
-    // reading 0xff, x
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 23, "%hhx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 255 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 0xff, i
-    signed char i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 23, "%hhi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, -1 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 0, x
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%hx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0x0, x
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 0x000, x
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 5, "%hx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 0x0, i
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hi%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 7fff, x
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 31, "%hx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 32767 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading -0x7fff, x
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 28, "%hx%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, -32767, unsigned short, "%hu" );
-    CHECK_EQUAL( n, 7 );
-    }
-    {
-    // reading 0x8000, i
-    signed short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 36, "%hi%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, -32768, signed short, "%hd" );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading ffff, x
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 45, "%hx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 65535 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 0xffff, x
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 43, "%hx%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 65535 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 0xffff, i
-    signed short i = 0;
-    int n;
-    CHECK_EQUAL( sscanf( string + 43, "%hi%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, -1, signed short, "%hd" );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 0, x
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 3, "%x%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading -0x0, x
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%x%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 0x000, x
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 5, "%x%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading 0x0, i
-    signed int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%i%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0 );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading 7fffffff, x
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 53, "%x%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647 );
-    CHECK_EQUAL( n, 8 );
-    }
-    {
-    // reading -0x7fffffff, x
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 50, "%x%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, -2147483647, unsigned int, "%u" );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading 0x80000000, i
-    signed int i = -1;
-    int n;
-    //CHECK_EQUAL( sscanf( string + 62, "%i%n", &i, &n ), 1 );
-    CHECK_EQUAL( sscanf( "-0x80000000", "%i%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, -2147483648, signed int, "%d" );
-    CHECK_EQUAL( n, 11 );
-    }
-    {
-    // reading ffffffff, x
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 75, "%x%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 4294967295, unsigned int, "%d" );
-    CHECK_EQUAL( n, 8 );
-    }
-    {
-    // reading 0xffffffff, x
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 73, "%x%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 4294967295, unsigned int, "%d" );
-    CHECK_EQUAL( n, 10 );
-    }
-}
-
-// octal integer matches
-void suite_four()
-{
-    char const * string = "+0000 -0000 +0177 +0377 -0377 +077777 +0177777\n"
-                          "-0177777 +017777777777 +037777777777\n"
-                          "-037777777777 +0777777777777777777777\n"
-                          "+01777777777777777777777\n"
-                          "-01777777777777777777777\n";
-    CHECK_EQUAL( string[171], '\n' );
-    {
-    // reading 0, o
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 4, "%hho%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0u );
-    CHECK_EQUAL( n, 1 );
-    }
-    {
-    // reading +0000, o
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%hho%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0u );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // reading -0000, o
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 6, "%hho%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 0u );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // reading 0177, o
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 13, "%hho%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 127u );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading +0177, o
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 12, "%hho%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 127u );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // reading 0377, o
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 19, "%hho%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 255u, unsigned char, "%hhu" );
-    CHECK_EQUAL( n, 4 );
-    }
-    {
-    // reading +0377, o
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 18, "%hho%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 255u, unsigned char, "%hhu" );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // reading -0377, o
-    unsigned char i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 24, "%hho%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 1u, unsigned char, "%hhu" );
-    CHECK_EQUAL( n, 5 );
-    }
-    {
-    // reading 077777, o
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 31, "%ho%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 32767u );
-    CHECK_EQUAL( n, 6 );
-    }
-    {
-    // reading +077777, o
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 30, "%ho%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 32767u );
-    CHECK_EQUAL( n, 7 );
-    }
-    {
-    // reading 0177777, o
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 39, "%ho%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 65535u, unsigned short, "%hu" );
-    CHECK_EQUAL( n, 7 );
-    }
-    {
-    // reading +0177777, o
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 38, "%ho%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 65535u, unsigned short, "%hu" );
-    CHECK_EQUAL( n, 8 );
-    }
-    {
-    // reading -0177777, o
-    unsigned short i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 47, "%ho%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 1u, unsigned short, "%hu" );
-    CHECK_EQUAL( n, 8 );
-    }
-    {
-    // reading 017777777777, o
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 57, "%o%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647u );
-    CHECK_EQUAL( n, 12 );
-    }
-    {
-    // reading +017777777777, o
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 56, "%o%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647u );
-    CHECK_EQUAL( n, 13 );
-    }
-    {
-    // reading 037777777777, o
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 71, "%o%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 4294967295u, unsigned int, "%u" );
-    CHECK_EQUAL( n, 12 );
-    }
-    {
-    // reading +037777777777, o
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 70, "%o%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 4294967295u, unsigned int, "%u" );
-    CHECK_EQUAL( n, 13 );
-    }
-    {
-    // reading -037777777777, o
-    unsigned int i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 84, "%o%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 1u, unsigned int, "%u" );
-    CHECK_EQUAL( n, 13 );
-    }
-    {
-    // reading 017777777777, o
-    unsigned long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 57, "%lo%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647lu );
-    CHECK_EQUAL( n, 12 );
-    }
-    {
-    // reading +017777777777, o
-    unsigned long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 56, "%lo%n", &i, &n ), 1 );
-    CHECK_EQUAL( i, 2147483647lu );
-    CHECK_EQUAL( n, 13 );
-    }
-    {
-    // reading 037777777777, o
-    unsigned long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 71, "%lo%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 4294967295lu, unsigned long, "%lu" );
-    CHECK_EQUAL( n, 12 );
-    }
-    {
-    // reading +037777777777, o
-    unsigned long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 70, "%lo%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 4294967295lu, unsigned long, "%lu" );
-    CHECK_EQUAL( n, 13 );
-    }
-    {
-    // reading -037777777777, o
-    unsigned long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 84, "%lo%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 1lu, unsigned long, "%lu" );
-    CHECK_EQUAL( n, 13 );
-    }
-    {
-    // reading 0777777777777777777777, o
-    unsigned long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 99, "%llo%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 9223372036854775807llu, unsigned long long, "%llu" );
-    CHECK_EQUAL( n, 22 );
-    }
-    {
-    // reading +0777777777777777777777, o
-    unsigned long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 98, "%llo%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 9223372036854775807llu, unsigned long long, "%llu" );
-    CHECK_EQUAL( n, 23 );
-    }
-    {
-    // reading 01777777777777777777777, o
-    unsigned long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 123, "%llo%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 18446744073709551615llu, unsigned long long, "%llu" );
-    CHECK_EQUAL( n, 23 );
-    }
-    {
-    // reading +01777777777777777777777, o
-    unsigned long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 122, "%llo%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 18446744073709551615llu, unsigned long long, "%llu" );
-    CHECK_EQUAL( n, 24 );
-    }
-    {
-    // reading -01777777777777777777777, o
-    unsigned long long i = -1;
-    int n;
-    CHECK_EQUAL( sscanf( string + 147, "%llo%n", &i, &n ), 1 );
-    CHECK_FEQUAL( i, 1llu, unsigned long long, "%llu" );
-    CHECK_EQUAL( n, 24 );
-    }
-}
-
-// string matches
-void suite_five()
-{
-    char const * string = "abcdefgh-ijklmnop[qrs%uvw]xyz";
-    CHECK_EQUAL( string[28], 'z' );
-    size_t const BUFSIZE = 29;
-    char buffer[ BUFSIZE ];
-    {
-    // reading abc
-    memset( buffer, '\0', BUFSIZE );
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%[abc]%n", buffer, &n ), 1 );
-    CHECK_EQUAL( n, 3 );
-    CHECK_FALSE( memcmp( buffer, "abc", n + 1 ) );
-    }
-    {
-    // reading a-c
-    memset( buffer, '\0', BUFSIZE );
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%[a-c]%n", buffer, &n ), 1 );
-    CHECK_EQUAL( n, 3 );
-    CHECK_FALSE( memcmp( buffer, "abc", n + 1 ) );
-    }
-    {
-    // reading a-h
-    memset( buffer, '\0', BUFSIZE );
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%[a-h]%n", buffer, &n ), 1 );
-    CHECK_EQUAL( n, 8 );
-    CHECK_FALSE( memcmp( buffer, "abcdefgh", n + 1 ) );
-    }
-    {
-    // reading o-r, including [, seperate char
-    memset( buffer, '\0', BUFSIZE );
-    int n;
-    CHECK_EQUAL( sscanf( string + 15, "%[[o-qr]%n", buffer, &n ), 1 );
-    CHECK_EQUAL( n, 5 );
-    CHECK_FALSE( memcmp( buffer, "op[qr", n + 1 ) );
-    }
-    {
-    // reading v-y, including ], two groups
-    memset( buffer, '\0', BUFSIZE );
-    int n;
-    CHECK_EQUAL( sscanf( string + 23, "%[]v-wx-y]%n", buffer, &n ), 1 );
-    CHECK_EQUAL( n, 5 );
-    CHECK_FALSE( memcmp( buffer, "vw]xy", n + 1 ) );
-    }
-    {
-    // missing on first character
-    memset( buffer, '\0', BUFSIZE );
-    int n;
-    int rc_ = sscanf( string + 0, "%[b]%n", buffer, &n );
-    CHECK_EQUAL( rc_, 0 );
-    //CHECK_EQUAL( sscanf( string + 0, "%[b]%n", buffer, &n ), 0 );
-    CHECK_FALSE( memcmp( buffer, "", 1 ) );
-    }
-    {
-    // eof while reading, two groups
-    memset( buffer, '\0', BUFSIZE );
-    int n;
-    CHECK_EQUAL( sscanf( string + 27, "%[a-zA-Z]%n", buffer, &n ), 1 );
-    CHECK_EQUAL( n, 2 );
-    CHECK_FALSE( memcmp( buffer, "yz", n + 1 ) );
-    }
-    {
-    // eof before reading
-    memset( buffer, '\0', BUFSIZE );
-    int n;
-    CHECK_EQUAL( sscanf( string + 29, "%[a-z]%n", buffer, &n ), -1 );
-    CHECK_FALSE( memcmp( buffer, "", 1 ) );
-    }
-    {
-    // negation - [^...]
-    memset( buffer, '\0', BUFSIZE );
-    int n;
-    CHECK_EQUAL( sscanf( string + 0, "%[^d-f]%n", buffer, &n ), 1 );
-    CHECK_EQUAL( n, 3 );
-    CHECK_FALSE( memcmp( buffer, "abc", 4 ) );
-    }
-}
-
-void suite_six()
-{
-    char const * string = "-0xz\n";
-    CHECK_EQUAL( string[4], '\n' );
-    {
-    // reading -0x, x
-    unsigned char i = 1;
-    int n = -1;
-    /* Most existing libraries disagree with this test driver, so a little
-       explanation of why PDCLib chose the implementation it did might be
-       necessary. All references are from ISO/IEC 9899:1999 "Programming
-       languages - C". Wording critical to the explanation is in UPPERCASE.
-       6.4.4.1 Integer constants - states that '0' is a valid (hexa)decimal
-           constant, whereas '0x' IS NOT.
-       7.19.6.2 The fscanf function - states...
-           ...in paragraph 9 that "an INPUT ITEM is defined as the longest
-               sequence of input characters [...] which is, OR IS A PREFIX OF,
-               a matching input sequence".
-           ...in paragraph 10 that "if the INPUT ITEM is not a matching
-               sequence, the execution of THE DIRECTIVE FAILS; this condition
-               is a matching failure".
-           ...in footnote 242) that "fscanf pushes back AT MOST ONE input
-               character onto the input stream."
-           ...in paragraph 12 that either of the conversion specifiers d, i,
-              o, u, or x "matches an [...] integer whose format is the same as
-              expected for THE SUBJECT SEQUENCE of the [strtol|strtoul]
-              function".
-       7.20.1.4 The strtol, strtoll, strtoul, and strtoull functions - states
-           in paragraph 3 that "the EXPECTED FORM OF THE SUBJECT SEQUENCE is
-           that of an integer constant AS DESCRIBED IN 6.4.4.1".
-       These parts of the standard result in the following reasoning:
-       - The longest sequence of input characters which is a prefix of a
-         matching input sequence is "-0x" (negative sign, hexadecimal-prefix).
-         The 'z' is the first character remaining unread as "-0xz" is not a
-         (prefix of a) matching input sequence. This is according to 7.19.6.2
-         paragraph 9.
-       - "0x", without a valid hexadecimal digit following it, is not a valid
-         integer constant according to 6.4.4.1.
-       - "0x" is thus also not of the expected form for a strto[u]l subject
-         sequence according to 7.20.1.4 paragraph 3. (strto[u]l() would parse
-         it as zero, but leave the "x" in the final string, i.e. outside the
-         subject sequence.)
-       - "0x" is therefore also not a matching sequence to the i or x
-         conversion specifier according to 7.19.6.2 paragraph 12.
-       - The conversion should therefore result in a matching failure
-         according to 7.19.6.2 paragraph 10.
-    */
-    CHECK_EQUAL( sscanf( string, "%hhx%n", &i, &n ), 0 );
-    CHECK_EQUAL( i, 1 );
-    CHECK_EQUAL( n, -1 );
-    }
-    {
-    // reading -0x, x
-    unsigned short i = 1;
-    int n = -1;
-    CHECK_EQUAL( sscanf( string, "%hx%n", &i, &n ), 0 );
-    CHECK_EQUAL( i, 1 );
-    CHECK_EQUAL( n, -1 );
-    }
-    {
-    // reading -0x, x
-    unsigned int i = 1;
-    int n = -1;
-    CHECK_EQUAL( sscanf( string, "%x%n", &i, &n ), 0 );
-    CHECK_EQUAL( i, 1 );
-    CHECK_EQUAL( n, -1 );
-    }
+#define SCANFUNC( source, format, ... ) sscanf( source, format, __VA_ARGS__ )
+#include "sscan_sources.incl"
+#include "scanf_testcases.incl"
+    return TEST_RESULTS;
 }
 
 #endif
diff --git a/functions/stdio/vfscanf.c b/functions/stdio/vfscanf.c
index a9ce3e9..99a752f 100644
--- a/functions/stdio/vfscanf.c
+++ b/functions/stdio/vfscanf.c
@@ -83,11 +83,23 @@ int vfscanf( FILE * _PDCLIB_restrict stream, const char * _PDCLIB_restrict forma
 #ifdef TEST
 #include <_PDCLIB_test.h>
 
+#include "scan_test.h"
+
+static int SCANFUNC( FILE * stream, char const * format, ... )
+{
+    va_list ap;
+    va_start( ap, format );
+    int result = vfscanf( stream, format, ap );
+    va_end( ap );
+    return result;
+}
+
 int main( void )
 {
-    /* TODO: Check whitespace / EOF / ungetc handling */
-    TESTCASE( NO_TESTDRIVER );
+#include "fscan_sources.incl"
+#include "scanf_testcases.incl"
     return TEST_RESULTS;
 }
 
 #endif
+
diff --git a/functions/stdio/vsscanf.c b/functions/stdio/vsscanf.c
index 3fc09cf..8a23790 100644
--- a/functions/stdio/vsscanf.c
+++ b/functions/stdio/vsscanf.c
@@ -79,20 +79,21 @@ int vsscanf( const char * _PDCLIB_restrict s, const char * _PDCLIB_restrict form
 #ifdef TEST
 #include <_PDCLIB_test.h>
 
+#include "scan_test.h"
+
+static int SCANFUNC( char const * stream, char const * format, ... )
+{
+    va_list ap;
+    va_start( ap, format );
+    int result = vsscanf( stream, format, ap );
+    va_end( ap );
+    return result;
+}
+
 int main( void )
 {
-    char const * teststring1 = "abc  def";
-    char const * teststring2 = "abcdef";
-    char const * teststring3 = "abc%def";
-    int x;
-    TESTCASE( sscanf( teststring2, "abcdef%n", &x ) == 0 );
-    TESTCASE( x == 6 );
-    TESTCASE( sscanf( teststring1, "abc def%n", &x ) == 0 );
-    TESTCASE( x == 8 );
-    TESTCASE( sscanf( teststring2, "abc def%n", &x ) == 0 );
-    TESTCASE( x == 6 );
-    TESTCASE( sscanf( teststring3, "abc%%def%n", &x ) == 0 );
-    TESTCASE( x == 7 );
+#include "sscan_sources.incl"
+#include "scanf_testcases.incl"
     return TEST_RESULTS;
 }
 
-- 
2.40.0