/* * Copyright (c) 2025 Robert Clausecker * * SPDX-License-Identifier: BSD-2-Clause */ #include #include bool stdc_has_single_bit_uc(unsigned char x) { return (x != 0 && (x & (x - 1)) == 0); } bool stdc_has_single_bit_us(unsigned short x) { return (x != 0 && (x & (x - 1)) == 0); } bool stdc_has_single_bit_ui(unsigned int x) { return (x != 0 && (x & (x - 1)) == 0); } bool stdc_has_single_bit_ul(unsigned long x) { return (x != 0 && (x & (x - 1)) == 0); } bool stdc_has_single_bit_ull(unsigned long long x) { return (x != 0 && (x & (x - 1)) == 0); }