X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fstdlib%2Fstrtoll.c;h=de7119429885cde06c589e24849e396f0915d36f;hp=768da391ef3f75f08bc71d946f236325ec7e2875;hb=da0f3f353d417fed71f358a48d5d5394145e460d;hpb=13ee02fa27a739d9d602f801126eadcfbfeab8a8

diff --git a/functions/stdlib/strtoll.c b/functions/stdlib/strtoll.c
index 768da39..de71194 100644
--- a/functions/stdlib/strtoll.c
+++ b/functions/stdlib/strtoll.c
@@ -1,5 +1,3 @@
-/* $Id$ */
-
 /* strtoll( const char *, char * *, int )
 
    This file is part of the Public Domain C Library (PDCLib).
@@ -21,13 +19,11 @@ long long int strtoll( const char * s, char ** endptr, int base )
     if ( base < 2 || base > 36 ) return 0;
     if ( sign == '+' )
     {
-        rc = _PDCLIB_strtox_main( &p, (unsigned)base, (uintmax_t)LLONG_MAX, (uintmax_t)( LLONG_MAX / base ), (uintmax_t)( LLONG_MAX % base ), &sign );
+        rc = (long long int)_PDCLIB_strtox_main( &p, (unsigned)base, (uintmax_t)LLONG_MAX, (uintmax_t)( LLONG_MAX / base ), (int)( LLONG_MAX % base ), &sign );
     }
     else
     {
-        /* FIXME: This breaks on some machines that round negatives wrongly */
-        /* FIXME: Sign error not caught by testdriver */
-        rc = _PDCLIB_strtox_main( &p, (unsigned)base, (uintmax_t)LLONG_MIN, (uintmax_t)( LLONG_MIN / -base ), (uintmax_t)( -( LLONG_MIN % base ) ), &sign );
+        rc = (long long int)_PDCLIB_strtox_main( &p, (unsigned)base, (uintmax_t)LLONG_MIN, (uintmax_t)( LLONG_MIN / -base ), (int)( -( LLONG_MIN % base ) ), &sign );
     }
     if ( endptr != NULL ) *endptr = ( p != NULL ) ? (char *) p : (char *) s;
     return ( sign == '+' ) ? rc : -rc;
@@ -36,12 +32,7 @@ long long int strtoll( const char * s, char ** endptr, int base )
 #endif
 
 #ifdef TEST
-#include <_PDCLIB_test.h>
-
-#ifndef _PDCLIB_INT_H
-#define _PDCLIB_INT_H
-#include <_PDCLIB_int.h>
-#endif
+#include "_PDCLIB_test.h"
 
 #include <errno.h>
 
@@ -50,19 +41,27 @@ int main( void )
     char * endptr;
     /* this, to base 36, overflows even a 256 bit integer */
     char overflow[] = "-ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ_";
+    /* tricky border case */
+    char tricky[] = "+0xz";
     errno = 0;
     /* basic functionality */
     TESTCASE( strtoll( "123", NULL, 10 ) == 123 );
     /* proper detecting of default base 10 */
-    TESTCASE( strtoll( "123", NULL, 0 ) == 123 );
+    TESTCASE( strtoll( "456", NULL, 0 ) == 456 );
     /* proper functioning to smaller base */
     TESTCASE( strtoll( "14", NULL, 8 ) == 12 );
     /* proper autodetecting of octal */
-    TESTCASE( strtoll( "014", NULL, 0 ) == 12 );
+    TESTCASE( strtoll( "016", NULL, 0 ) == 14 );
     /* proper autodetecting of hexadecimal, lowercase 'x' */
     TESTCASE( strtoll( "0xFF", NULL, 0 ) == 255 );
     /* proper autodetecting of hexadecimal, uppercase 'X' */
-    TESTCASE( strtoll( "0XFF", NULL, 0 ) == 255 );
+    TESTCASE( strtoll( "0Xa1", NULL, 0 ) == 161 );
+    /* proper handling of border case: 0x followed by non-hexdigit */
+    TESTCASE( strtoll( tricky, &endptr, 0 ) == 0 );
+    TESTCASE( endptr == tricky + 2 );
+    /* proper handling of border case: 0 followed by non-octdigit */
+    TESTCASE( strtoll( tricky, &endptr, 8 ) == 0 );
+    TESTCASE( endptr == tricky + 2 );
     /* errno should still be 0 */
     TESTCASE( errno == 0 );
     /* overflowing subject sequence must still return proper endptr */
@@ -75,43 +74,43 @@ int main( void )
     TESTCASE( errno == ERANGE );
     TESTCASE( ( endptr - overflow ) == 53 );
     /* testing skipping of leading whitespace */
-    TESTCASE( strtoll( " \n\v\t\f123", NULL, 0 ) == 123 );
+    TESTCASE( strtoll( " \n\v\t\f789", NULL, 0 ) == 789 );
     /* testing conversion failure */
     TESTCASE( strtoll( overflow, &endptr, 10 ) == 0 );
     TESTCASE( endptr == overflow );
     endptr = NULL;
     TESTCASE( strtoll( overflow, &endptr, 0 ) == 0 );
     TESTCASE( endptr == overflow );
-    /* These tests assume two-complement, but conversion should work for   */
-    /* one-complement and signed magnitude just as well. Anyone having a   */
-    /* platform to test this on?                                           */
+    /* TODO: These tests assume two-complement, but conversion should work */
+    /* for one-complement and signed magnitude just as well. Anyone having */
+    /* a platform to test this on?                                         */
     errno = 0;
-#if _PDCLIB_LLONG_BYTES == 8
+#if LLONG_MAX >> 62 == 1
     /* testing "even" overflow, i.e. base is power of two */
-    TESTCASE( strtoll( "0x7FFFFFFFFFFFFFFF", NULL, 0 ) == 0x7fffffffffffffff );
+    TESTCASE( strtoll( "9223372036854775807", NULL, 0 ) == 0x7fffffffffffffff );
     TESTCASE( errno == 0 );
-    TESTCASE( strtoll( "0x8000000000000000", NULL, 0 ) == LLONG_MAX );
+    TESTCASE( strtoll( "9223372036854775808", NULL, 0 ) == LLONG_MAX );
     TESTCASE( errno == ERANGE );
     errno = 0;
-    TESTCASE( strtoll( "-0x7FFFFFFFFFFFFFFF", NULL, 0 ) == 0x8000000000000001 );
+    TESTCASE( strtoll( "-9223372036854775807", NULL, 0 ) == (long long)0x8000000000000001 );
     TESTCASE( errno == 0 );
-    TESTCASE( strtoll( "-0x8000000000000000", NULL, 0 ) == LLONG_MIN );
+    TESTCASE( strtoll( "-9223372036854775808", NULL, 0 ) == LLONG_MIN );
     TESTCASE( errno == 0 );
-    TESTCASE( strtoll( "-0x8000000000000001", NULL, 0 ) == LLONG_MIN );
+    TESTCASE( strtoll( "-9223372036854775809", NULL, 0 ) == LLONG_MIN );
     TESTCASE( errno == ERANGE );
     /* TODO: test "odd" overflow, i.e. base is not power of two */
-#elif _PDCLIB_LONG_BYTES == 16
+#elif LLONG_MAX >> 126 == 1
     /* testing "even" overflow, i.e. base is power of two */
-    TESTCASE( strtoll( "0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", NULL, 0 ) == 0x7fffffffffffffffffffffffffffffff );
+    TESTCASE( strtoll( "170141183460469231731687303715884105728", NULL, 0 ) == 0x7fffffffffffffffffffffffffffffff );
     TESTCASE( errno == 0 );
-    TESTCASE( strtoll( "0x80000000000000000000000000000000", NULL, 0 ) == LLONG_MAX );
+    TESTCASE( strtoll( "170141183460469231731687303715884105729", NULL, 0 ) == LLONG_MAX );
     TESTCASE( errno == ERANGE );
     errno = 0;
-    TESTCASE( strtoll( "-0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", NULL, 0 ) == -0x80000000000000000000000000000001 );
+    TESTCASE( strtoll( "-170141183460469231731687303715884105728", NULL, 0 ) == -0x80000000000000000000000000000001 );
     TESTCASE( errno == 0 );
-    TESTCASE( strtoll( "-0x80000000000000000000000000000000", NULL, 0 ) == LLONG_MIN );
+    TESTCASE( strtoll( "-170141183460469231731687303715884105729", NULL, 0 ) == LLONG_MIN );
     TESTCASE( errno == 0 );
-    TESTCASE( strtoll( "-0x80000000000000000000000000000001", NULL, 0 ) == LLONG_MIN );
+    TESTCASE( strtoll( "-170141183460469231731687303715884105730", NULL, 0 ) == LLONG_MIN );
     TESTCASE( errno == ERANGE );
     /* TODO: test "odd" overflow, i.e. base is not power of two */
 #else
@@ -119,4 +118,5 @@ int main( void )
 #endif
     return TEST_RESULTS;
 }
+
 #endif