41 lines
735 B
C
41 lines
735 B
C
|
/*
|
||
|
|
* compar.c
|
||
|
|
*
|
||
|
|
* By Ross Ridge
|
||
|
|
* Public Domain
|
||
|
|
* 92/06/04 11:36:24
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "defs.h"
|
||
|
|
|
||
|
|
#ifdef USE_SCCS_IDS
|
||
|
|
static const char SCCSid[] = "@(#) mytinfo compar.c 3.3 92/06/04 public domain, By Ross Ridge";
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* compare two elements a sorted list of pointers to strings */
|
||
|
|
int
|
||
|
|
_compar(a, b)
|
||
|
|
#ifdef USE_ANSIC
|
||
|
|
void const *a;
|
||
|
|
void const *b; {
|
||
|
|
#else
|
||
|
|
anyptr a, b; {
|
||
|
|
#endif
|
||
|
|
register char *aa = **(char ***)a;
|
||
|
|
register char *bb = **(char ***)b;
|
||
|
|
|
||
|
|
/* An optimization trick from C News, compare the first
|
||
|
|
* two chars of the string here to avoid a the overhead of a
|
||
|
|
* call to strcmp.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef __GNUC__
|
||
|
|
return ((*aa - *bb) ? : strcmp(aa, bb));
|
||
|
|
#else
|
||
|
|
if (*aa != *bb)
|
||
|
|
return *aa - *bb;
|
||
|
|
return strcmp(aa, bb);
|
||
|
|
#endif
|
||
|
|
}
|