void qqsort(int *ja, FLOAT *ma, int left, int right){
/*----------------------------------------------------------------------
|
| qqsort: sort ja[left]...ja[right] into increasing order
| from Kernighan & Ritchie
|
| ma holds the real values
|
|---------------------------------------------------------------------*/
int i, last;
if (left >= right) return;
swapj(ja, left, (left+right)/2);
swapm(ma, left, (left+right)/2);
last = left;
for (i=left+1; i<=right; i++) {
if (ja[i] < ja[left]) {
swapj(ja, ++last, i);
swapm(ma, last, i);
}
}
swapj(ja, left, last);
swapm(ma, left, last);
qqsort(ja, ma, left, last-1);
qqsort(ja, ma, last+1, right);
}
Public void
sort_idx(VOID_ARG)
{
Message("Sorting entries...");
idx_dc = 0;
idx_gc = 0L;
qqsort((char *) idx_key, (int) idx_gt, (int) sizeof(FIELD_PTR),
(int (*) (char*, char*))compare);
Message("done (%ld comparisons).\n", idx_gc);
}
void
sort_idx(void)
{
#ifdef HAVE_SETLOCALE
char *prev_locale;
#endif
MESSAGE("Sorting entries...");
#ifdef HAVE_SETLOCALE
prev_locale = setlocale(LC_COLLATE, NULL);
setlocale(LC_COLLATE, "");
#endif
idx_dc = 0;
idx_gc = 0L;
qqsort(idx_key, (size_t)idx_gt, sizeof(FIELD_PTR), compare);
#ifdef HAVE_SETLOCALE
setlocale(LC_COLLATE, prev_locale);
#endif
MESSAGE1("done (%ld comparisons).\n", idx_gc);
}
/* sort input lines */
main(int argc, char *argv[])
{
int nlines;
int numeric = 0;
/* if (argc > 1 && strcmp(argv[1], "-n") == 0)
numeric = 1;
*/ printf("Reading Lines.... Control to readlines...\n");
if ((nlines = readline(lineptr, MAXLINES)) >= 0) {
printf("completed readline-calling QSORT\n");
qqsort((void**) lineptr, 0, nlines - 1, (int (*)(void *, void *))strcmp);
printf("COmpleted QSORT : Moving to writelines\n");
writeline(lineptr, nlines);
return 0;
}
else {
printf("Input too big to sort\n");
return 1;
}
}