xref: /aosp_15_r20/external/llvm-libc/src/string/strcasecmp.cpp (revision 71db0c75aadcf003ffe3238005f61d7618a3fead)
1*71db0c75SAndroid Build Coastguard Worker //===-- Implementation of strcasecmp --------------------------------------===//
2*71db0c75SAndroid Build Coastguard Worker //
3*71db0c75SAndroid Build Coastguard Worker // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*71db0c75SAndroid Build Coastguard Worker // See https://llvm.org/LICENSE.txt for license information.
5*71db0c75SAndroid Build Coastguard Worker // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*71db0c75SAndroid Build Coastguard Worker //
7*71db0c75SAndroid Build Coastguard Worker //===----------------------------------------------------------------------===//
8*71db0c75SAndroid Build Coastguard Worker 
9*71db0c75SAndroid Build Coastguard Worker #include "src/string/strcasecmp.h"
10*71db0c75SAndroid Build Coastguard Worker 
11*71db0c75SAndroid Build Coastguard Worker #include "src/__support/common.h"
12*71db0c75SAndroid Build Coastguard Worker #include "src/__support/ctype_utils.h"
13*71db0c75SAndroid Build Coastguard Worker #include "src/__support/macros/config.h"
14*71db0c75SAndroid Build Coastguard Worker #include "src/string/memory_utils/inline_strcmp.h"
15*71db0c75SAndroid Build Coastguard Worker 
16*71db0c75SAndroid Build Coastguard Worker namespace LIBC_NAMESPACE_DECL {
17*71db0c75SAndroid Build Coastguard Worker 
18*71db0c75SAndroid Build Coastguard Worker LLVM_LIBC_FUNCTION(int, strcasecmp, (const char *left, const char *right)) {
__anon5aa2a59b0102(char a, char b) 19*71db0c75SAndroid Build Coastguard Worker   auto case_cmp = [](char a, char b) {
20*71db0c75SAndroid Build Coastguard Worker     return LIBC_NAMESPACE::internal::tolower(a) -
21*71db0c75SAndroid Build Coastguard Worker            LIBC_NAMESPACE::internal::tolower(b);
22*71db0c75SAndroid Build Coastguard Worker   };
23*71db0c75SAndroid Build Coastguard Worker   return inline_strcmp(left, right, case_cmp);
24*71db0c75SAndroid Build Coastguard Worker }
25*71db0c75SAndroid Build Coastguard Worker 
26*71db0c75SAndroid Build Coastguard Worker } // namespace LIBC_NAMESPACE_DECL
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