1 //===-- Implementation of newlocale ---------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "src/locale/newlocale.h" 10 #include "hdr/locale_macros.h" 11 #include "src/__support/CPP/string_view.h" 12 #include "src/__support/common.h" 13 #include "src/__support/macros/config.h" 14 #include "src/locale/locale.h" 15 16 namespace LIBC_NAMESPACE_DECL { 17 18 LLVM_LIBC_FUNCTION(locale_t, newlocale, 19 (int category_mask, const char *locale_name, locale_t)) { 20 cpp::string_view name(locale_name); 21 if (category_mask > LC_ALL || (!name.empty() && name != "C")) 22 return nullptr; 23 24 return &c_locale; 25 } 26 27 } // namespace LIBC_NAMESPACE_DECL 28