Wikipedia:WikiProject C/stdio.h/fclose
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< Wikipedia:WikiProject C | stdio.h
- The correct title of this article is Wikipedia:fclose. The initial letter is shown capitalized due to technical restrictions.
fclose is a C function belonging to the ANSI C standard library, and included in the file stdio.h. It's purpose is close a stream and all the structure associated with it. Notes that most of the time the stream is an opening file. It has the following prototype:
int fclose(FILE *file_pointer)
It takes one argument: a pointer to the FILE structure of the stream to close, eg: :fclose(my_file_pointer) This line call the function fclose to close FILE stream structure pointed by my_file_pointer.
The return value is an integer with the following signification :
- 0 (zero) : the stream was closed successfully;
- EOF : an error happened;
Notes that one can check for the error number by using [[errno.h]].
[edit] Example usage
#include <stdio.h>
int main(int argc, char **argv) {
FILE *file_pointer;
int i;
file_pointer = fopen("myfile.txt","r");
fscanf(file_pointer, "%d", &i);
printf("The integer is %d\n", i);
fclose(file_pointer);
return 0;
}
The above program opens a file called myfile.txt and scans for an integer in it.
