alphasort()

Compare two directory entries

Synopsis:

#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);

Arguments:

d1, d2
Pointers to the struct direct directory entries that you want to compare.

Library:

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).

Description:

The alphasort() function alphabetically compares two directory entries. You can use it as the compar argument to scandir() .

Returns:

< 0
The d1 entry precedes the d2 entry alphabetically.
0
The entries are equivalent.
> 0
The d1 entry follows the d2 entry alphabetically.

Classification:

Legacy Unix

Safety:  
Cancellation point No
Interrupt handler Yes
Signal handler Yes
Thread Yes

Last modified: 2013-12-23

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