Closes the given file stream. Any unwritten buffered data are flushed to the OS. Any unread buffered data are discarded.
Whether or not the operation succeeds, the stream is no longer associated with a file, and the buffer allocated by setbuf or setvbuf, if any, is also disassociated and deallocated if automatic allocation was used.
The behavior is undefined if the value of the pointer stream is used after fclose returns.
â0â on success, EOF otherwise
[edit] Example#include <stdio.h>
#include <stdlib.h>
int main(void)
{
const char* fname = "/tmp/unique_name.txt"; // or tmpnam(NULL);
int is_ok = EXIT_FAILURE;
FILE* fp = fopen(fname, "w+");
if (!fp)
{
perror("File opening failed");
return is_ok;
}
fputs("Hello, world!\n", fp);
rewind(fp);
int c; // note: int, not char, required to handle EOF
while ((c = fgetc(fp)) != EOF) // standard C I/O file reading loop
putchar(c);
if (ferror(fp))
puts("I/O error when reading");
else if (feof(fp))
{
puts("End of file is reached successfully");
is_ok = EXIT_SUCCESS;
}
fclose(fp);
remove(fname);
return is_ok;
}
Possible output:
Hello, world! End of file is reached successfully[edit] References
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4