C fclose

File I/O

C fclose

fclose() function is C library function and it’s used to releases the memory stream, opened by fopen() function.

The basic format of fclose is:

Syntax:

int fclose( FILE * stream );

Return Value

C fclose returns EOF in case of failure, and returns 0 on success.

Example:

#include<stdio.h>

int main()
{
    FILE *fp;
    fp = fopen("fileName.txt","w");
    fprintf(fp, "%s", "Sample Texts");
    fclose(fp);
    return 0; 
}

• The above example will create a file called fileName.txt.
• The w means that the file is being opened for writing, and if the file does not exist then new file will be created.
• The fprintf function writes Sample Texts text on the file.
• The fclose function closes the file and releases the memory stream.