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/** \file util.c
Generic utilities library.
Contains datastructures such as automatically growing array lists, priority queues, etc.
*/
#include <stdlib.h>
#include <wchar.h>
#include <wctype.h>
#include <sys/types.h>
#include <errno.h>
#include <sys/time.h>
#include "fallback.h" // IWYU pragma: keep
#include "util.h"
#include "common.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)
{
/*
Huuuuuuuuge 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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