strspn.hpp

Go to the documentation of this file.

// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2019 Tobias Hienzsch
 
#ifndef TETL_CSTRING_STRSPN_HPP
#define TETL_CSTRING_STRSPN_HPP
 
#include <etl/_cstddef/size_t.hpp>
#include <etl/_strings/cstr.hpp>
 
namespace etl {
 
/// Returns the length of the maximum initial segment (span) of the byte
/// string pointed to by dest, that consists of only the characters found in
/// byte string pointed to by src.
///
/// https://en.cppreference.com/w/cpp/string/byte/strspn
///
/// \ingroup cstring
[[nodiscard]] constexpr auto strspn(char const* dest, char const* src) noexcept -> etl::size_t
{
    return etl::detail::strspn<char, etl::size_t, true>(dest, src);
}
 
} // namespace etl
 
#endif // TETL_CSTRING_STRSPN_HPP