libc/src/locale/setlocale.cpp

   1 //===-- Implementation of setlocale ---------------------------------------===//
   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/setlocale.h"
  10 #include "include/llvm-libc-macros/locale-macros.h"
  11 #include "src/locale/locale.h"
  12
  13 #include "src/__support/CPP/string_view.h"
  14 #include "src/__support/common.h"
  15 #include "src/__support/macros/config.h"
  16
  17 namespace LIBC_NAMESPACE_DECL {
  18
  19 LLVM_LIBC_FUNCTION(char *, setlocale, (int category, const char *locale_name)) {
  20   cpp::string_view name(locale_name);
  21   if (category > LC_ALL || (!name.empty() && name != "C"))
  22     return nullptr;
  23
  24   static char locale_str[] = "C";
  25   return locale_str;
  26 }
  27
  28 } // namespace LIBC_NAMESPACE_DECL