forked from KolibriOS/kolibrios
40 lines
772 B
C
40 lines
772 B
C
#include <stdio.h>
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#include <stdarg.h>
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#include <stdlib.h>
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int virtual_getc_file(void *sp, const void *obj)
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// get next chat from file obj, save point is ptr to string char ptr
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{
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FILE *f = (FILE *)obj;
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return fgetc(f);
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}
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void virtual_ungetc_file(void *sp, int c, const void *obj)
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// if can, one step back savepoint in s
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{
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FILE *f = (FILE *)obj;
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if (f) ungetc(c, f);
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}
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int vfscanf ( FILE * stream, const char * format, va_list arg )
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{
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return format_scan(stream, format, arg, &virtual_getc_file, &virtual_ungetc_file);
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};
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int fscanf ( FILE * stream, const char * format, ...)
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{
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va_list arg;
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int n;
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va_start(arg, format);
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n = vfscanf(stream, format, arg);
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va_end(arg);
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return n;
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}
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