| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Linux/include/asm-generic/bitops/ (Open Source Betriebssystem Version 6.17.9©) Datei vom 24.10.2025 mit Größe 412 B |
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Quelle builtin-fls.h Sprache: C |
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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_ #define _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_ /** * fls - find last (most-significant) bit set * @x: the word to search * * This is defined the same way as ffs. * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32. */ static __always_inline int fls(unsigned int x) { return x ? sizeof(x) * 8 - __builtin_clz(x) : 0; } #endif
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2026-04-02