mirror of
https://github.com/espressif/esp-idf.git
synced 2025-10-31 04:59:55 +00:00
19 lines
398 B
C
19 lines
398 B
C
/*
|
|
* SPDX-FileCopyrightText: Copyright (c) 1990, 1993 The Regents of the University of California. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-4-Clause-UC
|
|
*
|
|
* SPDX-FileContributor: 2024 Espressif Systems (Shanghai) CO LTD
|
|
*/
|
|
|
|
#include "strings.h"
|
|
|
|
int fls(unsigned int mask)
|
|
{
|
|
if (mask == 0) {
|
|
return (0);
|
|
}
|
|
|
|
return (sizeof(mask) << 3) - __builtin_clz(mask);
|
|
}
|