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// Generic utilities library.
//
// Contains data structures such as automatically growing array lists, priority queues, etc.
#include "config.h" // IWYU pragma: keep
#include <errno.h>
#include <stdlib.h>
#include <sys/time.h>
#include <wchar.h>
#include <wctype.h>
#include "common.h"
#include "fallback.h" // IWYU pragma: keep
#include "util.h"
#include "wutil.h" // IWYU pragma: keep
int wcsfilecmp(const wchar_t *a, const wchar_t *b) {
CHECK(a, 0);
CHECK(b, 0);
if (*a == 0) {
if (*b == 0) return 0;
return -1;
}
if (*b == 0) {
return 1;
}
long secondary_diff = 0;
if (iswdigit(*a) && iswdigit(*b)) {
wchar_t *aend, *bend;
long al;
long bl;
long diff;
errno = 0;
al = wcstol(a, &aend, 10);
bl = wcstol(b, &bend, 10);
if (errno) {
// Huge numbers - fall back to regular string comparison.
return wcscmp(a, b);
}
diff = al - bl;
if (diff) return diff > 0 ? 2 : -2;
secondary_diff = (aend - a) - (bend - b);
a = aend - 1;
b = bend - 1;
} else {
int diff = towlower(*a) - towlower(*b);
if (diff != 0) return diff > 0 ? 2 : -2;
secondary_diff = *a - *b;
}
int res = wcsfilecmp(a + 1, b + 1);
if (abs(res) < 2) {
// No primary difference in rest of string. Use secondary difference on this element if
// found.
if (secondary_diff) {
return secondary_diff > 0 ? 1 : -1;
}
}
return res;
}
long long get_time() {
struct timeval time_struct;
gettimeofday(&time_struct, 0);
return 1000000ll * time_struct.tv_sec + time_struct.tv_usec;
}
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