Mega Code Archive
Save and write different type of value into file
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#include <stdio.h>
#include <stdlib.h>
int main(void)
{
FILE *filep;
int j;
/* open file for output */
if((filep = fopen("myfile.txt", "wb"))==NULL) {
printf("Cannot open file.\n");
exit(1);
}
j = 10;
if(fwrite(&j, sizeof(int), 1, filep) != 1) {
printf("Write error occurred.\n");
exit(1);
}
fclose(filep);
/* open file for input */
if((filep = fopen("myfile.txt", "rb"))==NULL) {
printf("Cannot open file.\n");
exit(1);
}
if(fread(&j, sizeof j, 1, filep) != 1) {
printf("Read error occurred.\n");
exit(1);
}
printf("j is %d",j);
fclose(filep);
return 0;
}
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