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/*******************************************************************
Byte utilities
(c) 1994, 1995 Innobase Oy
Created 5/11/1994 Heikki Tuuri
********************************************************************/
#include "ut0byte.h"
#ifdef UNIV_NONINL
#include "ut0byte.ic"
#endif
#include "ut0sort.h"
/* Zero value for a dulint */
dulint ut_dulint_zero = {0, 0};
/* Maximum value for a dulint */
dulint ut_dulint_max = {0xFFFFFFFFUL, 0xFFFFFFFFUL};
/****************************************************************
Sort function for dulint arrays. */
void
ut_dulint_sort(dulint* arr, dulint* aux_arr, ulint low, ulint high)
/*===============================================================*/
{
UT_SORT_FUNCTION_BODY(ut_dulint_sort, arr, aux_arr, low, high,
ut_dulint_cmp);
}
/****************************************************************
Copies a string to a memory location, setting characters to lower case. */
void
ut_cpy_in_lower_case(
/*=================*/
char* dest, /* in: destination */
const char* source, /* in: source */
ulint len) /* in: string length */
{
ulint i;
for (i = 0; i < len; i++) {
dest[i] = tolower(source[i]);
}
}
/****************************************************************
Compares two strings when converted to lower case. */
int
ut_cmp_in_lower_case(
/*=================*/
/* out: -1, 0, 1 if str1 < str2, str1 == str2,
str1 > str2, respectively */
const char* str1, /* in: string1 */
const char* str2) /* in: string2 */
{
for (;;) {
int c1, c2;
if (!*str1) {
return(*str2 ? -1 : 0);
} else if (!*str2) {
return 1;
}
c1 = tolower(*str1++);
c2 = tolower(*str2++);
if (c1 < c2) {
return(-1);
}
if (c1 > c2) {
return(1);
}
}
return(0);
}
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