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C/C++ Source Codes

programme to show use of vfprintf() and fscanf()

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>

FILE *fp;

int vfpf(char *fmt, ...)
va_list argptr;
int cnt;

va_start(argptr, fmt);
cnt = vfprintf(fp, fmt, argptr);


int main(void)
int inumber = 30;
float fnumber = 90.0;
char string[4] = "abc";

fp = tmpfile();
if (fp == NULL)
perror("tmpfile() call");

vfpf("%d %f %s", inumber, fnumber, string);
fscanf(fp,"%d %f %s", &inumber, &fnumber, string);
printf("%d %f %s\n", inumber, fnumber, string);

return 0;

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