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1//===-- wchar utils ---------------------------------------------*- C++ -*-===//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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_LIBC_SRC_WCHAR_WCHAR_UTILS_H10#define LLVM_LIBC_SRC_WCHAR_WCHAR_UTILS_H11 12#include "hdr/types/size_t.h"13#include "hdr/types/wchar_t.h"14#include "src/__support/common.h"15#include "src/__support/macros/attributes.h" // LIBC_INLINE16 17namespace LIBC_NAMESPACE_DECL {18namespace internal {19 20LIBC_INLINE static const wchar_t *wcschr(const wchar_t *s, wchar_t c) {21 for (; *s && *s != c; ++s)22 ;23 return (*s == c) ? s : nullptr;24}25 26// bool should be true for wcscspn for complimentary span27// should be false for wcsspn since we want it to span28LIBC_INLINE static size_t wcsspn(const wchar_t *s1, const wchar_t *s2,29 bool not_match_set) {30 size_t i = 0;31 for (; s1[i]; ++i) {32 bool in_set = internal::wcschr(s2, s1[i]);33 if (in_set == not_match_set)34 return i;35 }36 return i;37}38 39} // namespace internal40} // namespace LIBC_NAMESPACE_DECL41 42#endif // LLVM_LIBC_SRC_WCHAR_WCHAR_UTILS_H43