iswalnum.hpp

Go to the documentation of this file.

// SPDX-License-Identifier: BSL-1.0
 
#ifndef TETL_CWCTYPE_ISWALNUM_HPP
#define TETL_CWCTYPE_ISWALNUM_HPP
 
#include <etl/_cwchar/wint_t.hpp>
 
namespace etl {

[[nodiscard]] constexpr auto iswalnum(wint_t ch) noexcept -> int
{
    auto isDigit = ch >= L'0' and ch <= L'9';
    auto isLower = ch >= L'a' and ch <= L'z';
    auto isUpper = ch >= L'A' and ch <= L'Z';
    return static_cast<int>(isDigit or isLower or isUpper);
}
 
} // namespace etl
 
#endif // TETL_CWCTYPE_ISWALNUM_HPP