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author | anastasy888 <anastasy888@yandex-team.ru> | 2022-02-10 16:45:54 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:45:54 +0300 |
commit | 49f765d71da452ea93138a25559dfa68dd76c7f3 (patch) | |
tree | 1016041feb637349e401dcc0fa85217dd2c2c639 /contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/memutil.cc | |
parent | 7353a3fdea9c67c256980c00a2b3b67f09b23a27 (diff) | |
download | ydb-49f765d71da452ea93138a25559dfa68dd76c7f3.tar.gz |
Restoring authorship annotation for <anastasy888@yandex-team.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/memutil.cc')
-rw-r--r-- | contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/memutil.cc | 210 |
1 files changed, 105 insertions, 105 deletions
diff --git a/contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/memutil.cc b/contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/memutil.cc index 0ba6574fdb..759222d19a 100644 --- a/contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/memutil.cc +++ b/contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/memutil.cc @@ -1,112 +1,112 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - +// Copyright 2017 The Abseil Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// https://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + #include "y_absl/strings/internal/memutil.h" - -#include <cstdlib> - + +#include <cstdlib> + namespace y_absl { ABSL_NAMESPACE_BEGIN -namespace strings_internal { - -int memcasecmp(const char* s1, const char* s2, size_t len) { - const unsigned char* us1 = reinterpret_cast<const unsigned char*>(s1); - const unsigned char* us2 = reinterpret_cast<const unsigned char*>(s2); - - for (size_t i = 0; i < len; i++) { - const int diff = +namespace strings_internal { + +int memcasecmp(const char* s1, const char* s2, size_t len) { + const unsigned char* us1 = reinterpret_cast<const unsigned char*>(s1); + const unsigned char* us2 = reinterpret_cast<const unsigned char*>(s2); + + for (size_t i = 0; i < len; i++) { + const int diff = int{static_cast<unsigned char>(y_absl::ascii_tolower(us1[i]))} - int{static_cast<unsigned char>(y_absl::ascii_tolower(us2[i]))}; - if (diff != 0) return diff; - } - return 0; -} - -char* memdup(const char* s, size_t slen) { - void* copy; - if ((copy = malloc(slen)) == nullptr) return nullptr; - memcpy(copy, s, slen); - return reinterpret_cast<char*>(copy); -} - -char* memrchr(const char* s, int c, size_t slen) { - for (const char* e = s + slen - 1; e >= s; e--) { - if (*e == c) return const_cast<char*>(e); - } - return nullptr; -} - -size_t memspn(const char* s, size_t slen, const char* accept) { - const char* p = s; - const char* spanp; - char c, sc; - -cont: - c = *p++; - if (slen-- == 0) return p - 1 - s; - for (spanp = accept; (sc = *spanp++) != '\0';) - if (sc == c) goto cont; - return p - 1 - s; -} - -size_t memcspn(const char* s, size_t slen, const char* reject) { - const char* p = s; - const char* spanp; - char c, sc; - - while (slen-- != 0) { - c = *p++; - for (spanp = reject; (sc = *spanp++) != '\0';) - if (sc == c) return p - 1 - s; - } - return p - s; -} - -char* mempbrk(const char* s, size_t slen, const char* accept) { - const char* scanp; - int sc; - - for (; slen; ++s, --slen) { - for (scanp = accept; (sc = *scanp++) != '\0';) - if (sc == *s) return const_cast<char*>(s); - } - return nullptr; -} - -// This is significantly faster for case-sensitive matches with very -// few possible matches. See unit test for benchmarks. -const char* memmatch(const char* phaystack, size_t haylen, const char* pneedle, - size_t neelen) { - if (0 == neelen) { - return phaystack; // even if haylen is 0 - } - if (haylen < neelen) return nullptr; - - const char* match; - const char* hayend = phaystack + haylen - neelen + 1; - // A static cast is used here to work around the fact that memchr returns - // a void* on Posix-compliant systems and const void* on Windows. - while ((match = static_cast<const char*>( - memchr(phaystack, pneedle[0], hayend - phaystack)))) { - if (memcmp(match, pneedle, neelen) == 0) - return match; - else - phaystack = match + 1; - } - return nullptr; -} - -} // namespace strings_internal + if (diff != 0) return diff; + } + return 0; +} + +char* memdup(const char* s, size_t slen) { + void* copy; + if ((copy = malloc(slen)) == nullptr) return nullptr; + memcpy(copy, s, slen); + return reinterpret_cast<char*>(copy); +} + +char* memrchr(const char* s, int c, size_t slen) { + for (const char* e = s + slen - 1; e >= s; e--) { + if (*e == c) return const_cast<char*>(e); + } + return nullptr; +} + +size_t memspn(const char* s, size_t slen, const char* accept) { + const char* p = s; + const char* spanp; + char c, sc; + +cont: + c = *p++; + if (slen-- == 0) return p - 1 - s; + for (spanp = accept; (sc = *spanp++) != '\0';) + if (sc == c) goto cont; + return p - 1 - s; +} + +size_t memcspn(const char* s, size_t slen, const char* reject) { + const char* p = s; + const char* spanp; + char c, sc; + + while (slen-- != 0) { + c = *p++; + for (spanp = reject; (sc = *spanp++) != '\0';) + if (sc == c) return p - 1 - s; + } + return p - s; +} + +char* mempbrk(const char* s, size_t slen, const char* accept) { + const char* scanp; + int sc; + + for (; slen; ++s, --slen) { + for (scanp = accept; (sc = *scanp++) != '\0';) + if (sc == *s) return const_cast<char*>(s); + } + return nullptr; +} + +// This is significantly faster for case-sensitive matches with very +// few possible matches. See unit test for benchmarks. +const char* memmatch(const char* phaystack, size_t haylen, const char* pneedle, + size_t neelen) { + if (0 == neelen) { + return phaystack; // even if haylen is 0 + } + if (haylen < neelen) return nullptr; + + const char* match; + const char* hayend = phaystack + haylen - neelen + 1; + // A static cast is used here to work around the fact that memchr returns + // a void* on Posix-compliant systems and const void* on Windows. + while ((match = static_cast<const char*>( + memchr(phaystack, pneedle[0], hayend - phaystack)))) { + if (memcmp(match, pneedle, neelen) == 0) + return match; + else + phaystack = match + 1; + } + return nullptr; +} + +} // namespace strings_internal ABSL_NAMESPACE_END } // namespace y_absl |