X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Fvfprintf.c;h=3656843602dfd76e14e95ec5abdae3b0ef8af1d8;hb=46983693f019c28a1c2420e9e7dfc204916af411;hp=12a09097e1fc52e4ec4dc93d9c0843875d1fa19e;hpb=eb48e9166e7f49e71e563cd79d9a0b4c803b6518;p=pdclib

diff --git a/functions/stdio/vfprintf.c b/functions/stdio/vfprintf.c
index 12a0909..3656843 100644
--- a/functions/stdio/vfprintf.c
+++ b/functions/stdio/vfprintf.c
@@ -8,13 +8,30 @@
 
 #include <stdio.h>
 #include <stdarg.h>
+#include <stdint.h>
 
 #ifndef REGTEST
 
 int vfprintf( FILE * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format, va_list arg )
 {
-    /* TODO: Implement using vsnprintf() writing to file buffer */
-    return 0;
+    /* 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 };
+    while ( *format != '\0' )
+    {
+        const char * rc;
+        if ( ( *format != '%' ) || ( ( rc = _PDCLIB_print( format, &status ) ) == format ) )
+        {
+            /* No conversion specifier, print verbatim */
+            putc( *(format++), stream );
+        }
+        else
+        {
+            /* Continue parsing after conversion specifier */
+            format = rc;
+        }
+    }
+    return status.i;
 }
 
 #endif