1*431ea2d0SNick Desaulniers //===-- Implementation of strncasecmp -------------------------------------===// 2*431ea2d0SNick Desaulniers // 3*431ea2d0SNick Desaulniers // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*431ea2d0SNick Desaulniers // See https://llvm.org/LICENSE.txt for license information. 5*431ea2d0SNick Desaulniers // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*431ea2d0SNick Desaulniers // 7*431ea2d0SNick Desaulniers //===----------------------------------------------------------------------===// 8*431ea2d0SNick Desaulniers 9*431ea2d0SNick Desaulniers #include "src/strings/strncasecmp.h" 10*431ea2d0SNick Desaulniers 11*431ea2d0SNick Desaulniers #include "src/__support/common.h" 12*431ea2d0SNick Desaulniers #include "src/__support/ctype_utils.h" 13*431ea2d0SNick Desaulniers #include "src/__support/macros/config.h" 14*431ea2d0SNick Desaulniers #include "src/string/memory_utils/inline_strcmp.h" 15*431ea2d0SNick Desaulniers 16*431ea2d0SNick Desaulniers namespace LIBC_NAMESPACE_DECL { 17*431ea2d0SNick Desaulniers 18*431ea2d0SNick Desaulniers LLVM_LIBC_FUNCTION(int, strncasecmp, 19*431ea2d0SNick Desaulniers (const char *left, const char *right, size_t n)) { 20*431ea2d0SNick Desaulniers auto case_cmp = [](char a, char b) { 21*431ea2d0SNick Desaulniers return LIBC_NAMESPACE::internal::tolower(a) - 22*431ea2d0SNick Desaulniers LIBC_NAMESPACE::internal::tolower(b); 23*431ea2d0SNick Desaulniers }; 24*431ea2d0SNick Desaulniers return inline_strncmp(left, right, n, case_cmp); 25*431ea2d0SNick Desaulniers } 26*431ea2d0SNick Desaulniers 27*431ea2d0SNick Desaulniers } // namespace LIBC_NAMESPACE_DECL 28