Minimize the amount of internal definitions which get exposed via the user-visible...

[pdclib.old] / functions / stdio / vfprintf.c

diff --git a/functions/stdio/vfprintf.c b/functions/stdio/vfprintf.c
index 8e3ff9548482a81610cd12f937c191e310c76aff..f9562d2e137d04e37ca3fe384334f1d87674f369 100644 (file)
--- a/functions/stdio/vfprintf.c
+++ b/functions/stdio/vfprintf.c
@@ -9,14 +9,28 @@
 #include <stdio.h>
 #include <stdarg.h>
 #include <stdint.h>
+#include <limits.h>
 
 #ifndef REGTEST
+#include <_PDCLIB_io.h>
 
-int vfprintf( struct _PDCLIB_file_t * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format, va_list arg )
+int vfprintf_unlocked( FILE * _PDCLIB_restrict stream, 
+                       const char * _PDCLIB_restrict format, 
+                       va_list arg )
 {
     /* TODO: This function should interpret format as multibyte characters.  */
-    /* Members: base, flags, n, i, this, s, width, prec, stream, arg         */
-    struct _PDCLIB_status_t status = { 0, 0, SIZE_MAX, 0, 0, NULL, 0, 0, stream, arg };
+    struct _PDCLIB_status_t status;
+    status.base = 0;
+    status.flags = 0;
+    status.n = UINT_MAX;
+    status.i = 0;
+    status.current = 0;
+    status.s = NULL;
+    status.width = 0;
+    status.prec = 0;
+    status.stream = stream;
+    va_copy( status.arg, arg );
+
     while ( *format != '\0' )
     {
         const char * rc;
@@ -24,6 +38,7 @@ int vfprintf( struct _PDCLIB_file_t * _PDCLIB_restrict stream, const char * _PDC
         {
             /* No conversion specifier, print verbatim */
             putc( *(format++), stream );
+            status.i++;
         }
         else
         {
@@ -31,17 +46,44 @@ int vfprintf( struct _PDCLIB_file_t * _PDCLIB_restrict stream, const char * _PDC
             format = rc;
         }
     }
+    va_end( status.arg );
     return status.i;
 }
 
+int vfprintf( FILE * _PDCLIB_restrict stream, 
+              const char * _PDCLIB_restrict format, 
+              va_list arg )
+{
+    flockfile( stream );
+    int r = vfprintf_unlocked( stream, format, arg );
+    funlockfile( stream );
+    return r;
+}
+
 #endif
 
 #ifdef TEST
+#define _PDCLIB_FILEID "stdio/vfprintf.c"
+#define _PDCLIB_FILEIO
+
 #include <_PDCLIB_test.h>
 
+static int testprintf( FILE * stream, const char * format, ... )
+{
+    int i;
+    va_list arg;
+    va_start( arg, format );
+    i = vfprintf( stream, format, arg );
+    va_end( arg );
+    return i;
+}
+
 int main( void )
 {
-    TESTCASE( NO_TESTDRIVER );
+    FILE * target;
+    TESTCASE( ( target = tmpfile() ) != NULL );
+#include "printf_testcases.h"
+    TESTCASE( fclose( target ) == 0 );
     return TEST_RESULTS;
 }