strings/internal/memutil.h

0001 //
0002 // Copyright 2017 The Abseil Authors.
0003 //
0004 // Licensed under the Apache License, Version 2.0 (the "License");
0005 // you may not use this file except in compliance with the License.
0006 // You may obtain a copy of the License at
0007 //
0008 //      https://www.apache.org/licenses/LICENSE-2.0
0009 //
0010 // Unless required by applicable law or agreed to in writing, software
0011 // distributed under the License is distributed on an "AS IS" BASIS,
0012 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0013 // See the License for the specific language governing permissions and
0014 // limitations under the License.
0015 //
0016
0017 #ifndef ABSL_STRINGS_INTERNAL_MEMUTIL_H_
0018 #define ABSL_STRINGS_INTERNAL_MEMUTIL_H_
0019
0020 #include <cstddef>
0021 #include <cstring>
0022
0023 #include "absl/base/port.h"  // disable some warnings on Windows
0024 #include "absl/strings/ascii.h"  // for absl::ascii_tolower
0025
0026 namespace absl {
0027 ABSL_NAMESPACE_BEGIN
0028 namespace strings_internal {
0029
0030 // Performs a byte-by-byte comparison of `len` bytes of the strings `s1` and
0031 // `s2`, ignoring the case of the characters. It returns an integer less than,
0032 // equal to, or greater than zero if `s1` is found, respectively, to be less
0033 // than, to match, or be greater than `s2`.
0034 int memcasecmp(const char* s1, const char* s2, size_t len);
0035
0036 }  // namespace strings_internal
0037 ABSL_NAMESPACE_END
0038 }  // namespace absl
0039
0040 #endif  // ABSL_STRINGS_INTERNAL_MEMUTIL_H_