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Fwrite

Item Value Header filestdio.h Declarationsize_t fwrite(const void *buf, size_t size, size_t count, FILE *stream); Functionwrites count number of objects. Returnreturns the number of items written on success. Fewer items written means failure. #include <stdio.h>   #include <stdlib.h>   int main(void)   {     FILE *fp;     float f=12.23;     if((fp=fopen("test", "wb"))==NULL) {       printf("Cannot open file.\n");       exit(1);     }     fwrite(&f, sizeof(float), 1, fp);     fclose(fp);     return 0;   }