C/stdio.h/fwrite

fwrite: writes count number of objects

<source lang="cpp">

//Header file: #include <stdio.h> //Declaration: size_t fwrite(const void *buf, size_t size, size_t count, FILE *stream); //Return: returns 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;
 }
          
      </source>