From 82ba818ff456bcd6d56a06226e3f27e98fbb55c3 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Thu, 14 Aug 2025 22:58:58 -0500 Subject: removing all downloaded devdocs files --- devdocs/c/io%2Ffclose.html | 57 ---------------------------------------------- 1 file changed, 57 deletions(-) delete mode 100644 devdocs/c/io%2Ffclose.html (limited to 'devdocs/c/io%2Ffclose.html') diff --git a/devdocs/c/io%2Ffclose.html b/devdocs/c/io%2Ffclose.html deleted file mode 100644 index 2c80600a..00000000 --- a/devdocs/c/io%2Ffclose.html +++ /dev/null @@ -1,57 +0,0 @@ -

fclose

Defined in header <stdio.h> 
int fclose( FILE *stream );
-

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.

-

Parameters

- -
stream - the file stream to close

Return value

​0​ on success, EOF otherwise

-

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

References

See also

- - -
-
(C11)
 opens a file
(function)
-
(C11)
 open an existing stream with a different name
(function)
C++ documentation for fclose
-

- © cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
- https://en.cppreference.com/w/c/io/fclose -

-
-- cgit v1.2.3