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remove

From cppreference.com
< c‎ | io
Defined in header <stdio.h>
int remove( const char *fname );

Deletes the file identified by character string pointed to by fname.

If the file is currently open by this or another process, the behavior of this function is implementation-defined (in particular, POSIX systems unlink the file name although the file system space is not reclaimed until the last running process closes the file, Windows does not allow the file to be deleted)

Contents

[edit] Parameters

fname - pointer to a null-terminated string containing the path identifying the file to delete

[edit] Return value

0 upon success or non-zero value on error.

[edit] Notes

POSIX specifies many additional details for the behavior of this function.

[edit] Example

#include <stdio.h>
int main()
{
    FILE* fp = fopen("file1.txt", "w"); // create file
    if(!fp) { perror("file1.txt"); return 1; }
    puts("Created file1.txt");
    fclose(fp);
 
    int rc = remove("file1.txt");
    if(rc) { perror("remove"); return 1; }
    puts("Removed file1.txt");
 
    fp = fopen("file1.txt", "r"); // Failure: file does not exist
    if(!fp) perror("Opening removed file failed");
 
    rc = remove("file1.txt"); // Failure: file does not exist
    if(rc) perror("Double-remove failed");
}

Output:

Created file1.txt
Removed file1.txt
Opening removed file failed: No such file or directory
Double-remove failed: No such file or directory

[edit] See also

renames a file
(function) [edit]