strcspn.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2019 Tobias Hienzsch
 
#ifndef TETL_CSTRING_STRCSPN_HPP
#define TETL_CSTRING_STRCSPN_HPP
 
#include <etl/_cstddef/size_t.hpp>
#include <etl/_strings/cstr.hpp>
 
namespace etl {
 
/// Returns the length of the maximum initial segment of the byte string
/// pointed to by dest, that consists of only the characters not found in byte
/// string pointed to by src.
///
/// The function name stands for "complementary span"
///
/// https://en.cppreference.com/w/cpp/string/byte/strcspn
///
/// \ingroup cstring
[[nodiscard]] constexpr auto strcspn(char const* dest, char const* src) noexcept -> etl::size_t
{
    return etl::detail::strspn<char, etl::size_t, false>(dest, src);
}
 
} // namespace etl
 
#endif // TETL_CSTRING_STRCSPN_HPP