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[UCRT] Import Microsoft.Windows.SDK.CRTSource version 10.0.22621.3

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Imported from https://www.nuget.org/packages/Microsoft.Windows.SDK.CRTSource/10.0.22621.3
License: MIT
This commit is contained in:
Timo Kreuzer 2024-05-11 07:03:12 +02:00
parent f1b60c66f0
commit 04e0dc4a7a
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105
sdk/lib/ucrt/string/stricmp.cpp Normal file
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/***
*stricmp.cpp - contains case-insensitive string comp routine _stricmp
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
* contains _stricmp()
*
*******************************************************************************/
#include <corecrt_internal.h>
#include <ctype.h>
#include <locale.h>
#include <string.h>
#pragma warning(disable:__WARNING_POTENTIAL_BUFFER_OVERFLOW_NULLTERMINATED) // 26018 Prefast can't see that we are checking for terminal nul.
/***
*int _stricmp(lhs, rhs) - compare strings, ignore case
*
*Purpose:
* _stricmp/_strcmpi perform a case-insensitive string comparision.
* For differences, upper case letters are mapped to lower case.
* Thus, "abc_" < "ABCD" since "_" < "d".
*
*Entry:
* char *lhs, *rhs - strings to compare
*
*Return:
* Returns <0 if lhs < rhs
* Returns 0 if lhs = rhs
* Returns >0 if lhs > rhs
* Returns _NLSCMPERROR if something went wrong
*
*Exceptions:
* Input parameters are validated. Refer to the validation section of the function.
*
*******************************************************************************/
extern "C" int __cdecl _stricmp_l (
char const * const lhs,
char const * const rhs,
_locale_t const plocinfo
)
{
/* validation section */
_VALIDATE_RETURN(lhs != nullptr, EINVAL, _NLSCMPERROR);
_VALIDATE_RETURN(rhs != nullptr, EINVAL, _NLSCMPERROR);
unsigned char const * lhs_ptr = reinterpret_cast<unsigned char const *>(lhs);
unsigned char const * rhs_ptr = reinterpret_cast<unsigned char const *>(rhs);
_LocaleUpdate _loc_update(plocinfo);
int result;
int lhs_value;
int rhs_value;
do
{
lhs_value = _tolower_fast_internal(*lhs_ptr++, _loc_update.GetLocaleT());
rhs_value = _tolower_fast_internal(*rhs_ptr++, _loc_update.GetLocaleT());
result = lhs_value - rhs_value;
}
while (result == 0 && lhs_value != 0);
return result;
}
extern "C" int __cdecl __ascii_stricmp (
char const * const lhs,
char const * const rhs
)
{
unsigned char const * lhs_ptr = reinterpret_cast<unsigned char const *>(lhs);
unsigned char const * rhs_ptr = reinterpret_cast<unsigned char const *>(rhs);
int result;
int lhs_value;
int rhs_value;
do
{
lhs_value = __ascii_tolower(*lhs_ptr++);
rhs_value = __ascii_tolower(*rhs_ptr++);
result = lhs_value - rhs_value;
}
while (result == 0 && lhs_value != 0);
return result;
}
extern "C" int __cdecl _stricmp (
char const * const lhs,
char const * const rhs
)
{
if (!__acrt_locale_changed())
{
/* validation section */
_VALIDATE_RETURN(lhs != nullptr, EINVAL, _NLSCMPERROR);
_VALIDATE_RETURN(rhs != nullptr, EINVAL, _NLSCMPERROR);
return __ascii_stricmp(lhs, rhs);
}
return _stricmp_l(lhs, rhs, nullptr);
}