cc65/libsrc/common/_scanf.h

/*
 * _scanf.h
 *
 * (C) Copyright 2001 Ullrich von Bassewitz (uz@cc65.org)
 *
 */



#ifndef __SCANF_H
#define __SCANF_H



/* Type of the function that is called to input data. The function will
 * return EOF if no more data is available.
 */
typedef int __fastcall__ (*getfunc) (void* data);
typedef int __fastcall__ (*ungetfunc) (int c, void* data);



/* Control structure passed to the low level worker function.
 * Beware: The low level functions will access the structure on the assembly
 * level, so check this when altering the structure.
 */
struct scanfdata {
    getfunc    	    get;        /* Pointer to input routine */
    ungetfunc       unget;      /* Pointer to pushback routine */
    unsigned	    ccount; 	/* Number of chars read */

    /* Fields used outside of _scanf */
    void*           data;       /* Caller data */
};



/* Internal scanning routine */
int _scanf (struct scanfdata* d, const char* format, va_list ap);



/* End of _scanf.h */
#endif