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59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
/*
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* sscanf.c
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*
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* (C) Copyright 2001 Ullrich von Bassewitz (uz@cc65.org)
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include "_scanf.h"
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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static char get (struct indesc* d)
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/* Read a character from the input string and return it */
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{
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char C;
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if (C = d->buf[d->ridx]) {
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/* Increment index only if end not reached */
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++d->ridx;
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}
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return C;
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}
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int sscanf (const char* str, const char* format, ...)
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/* Standard C function */
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{
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struct indesc id;
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va_list ap;
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/* Initialize the indesc struct. We leave all fields uninitialized that we
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* don't need
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*/
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id.fin = (infunc) get;
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id.buf = (char*) str;
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id.ridx = 0;
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/* Setup for variable arguments */
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va_start (ap, format);
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/* Call the internal function. Since we know that va_end won't do anything,
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* we will save the call and return the value directly.
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*/
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return _scanf (&id, format, ap);
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}
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