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Compare two directory entries
#include <sys/types.h>
#include <sys/dir.h>
struct direct {
unsigned long d_fileno;
unsigned short d_reclen;
unsigned short d_namlen;
char d_name[1];
};
int alphasort( struct direct **d1,
struct direct **d2);
- d1, d2
- Pointers to the struct direct directory entries that
you want to compare.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
|
This function is in libc.a, but not in libc.so
(in order to save space). |
The alphasort() function alphabetically compares two directory
entries.
You can use it as the compar argument to
scandir().
- < 0
- The d1 entry precedes the d2 entry alphabetically.
- 0
- The entries are equivalent.
- > 0
- The d1 entry follows the d2 entry alphabetically.
Legacy Unix
Safety: | |
Cancellation point |
No |
Interrupt handler |
Yes |
Signal handler |
Yes |
Thread |
Yes |
closedir(),
opendir(),
readdir(),
rewinddir(),
scandir(),
seekdir(),
telldir()
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