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).
| fname | - | pointer to a null-terminated string containing the path identifying the file to delete |
0 upon success or non-zero value on error.
POSIX specifies many additional details for the behavior of this function.
#include <stdio.h>
#include <stdlib.h>
int main(void)
{
FILE* fp = fopen("file1.txt", "w"); // create file
if (!fp)
{
perror("file1.txt");
return EXIT_FAILURE;
}
puts("Created file1.txt");
fclose(fp);
int rc = remove("file1.txt");
if (rc)
{
perror("remove");
return EXIT_FAILURE;
}
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");
return EXIT_SUCCESS;
}Possible output:
Created file1.txt Removed file1.txt Opening removed file failed: No such file or directory Double-remove failed: No such file or directory
| renames a file (function) |
|
C++ documentation for remove |
|
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