Interface __BSR_CONST

Preprocessor macro expanding to an expression

Space	User/kernel
Context	Sync/async/rt-irq
May block	No
SPL	Any
Dynamic memory	No

#include <ARCH/BSR.H>

x = __BSR_CONST(val);

Description

The functionality of this macro is identical to __BSR, except that it takes constant argument and returns constant expression. It is usefull if the value will be used at a place where constant expression is required, such as an array size.

Arguments

val — A constnt unsigned long number in which the bit is searched. It must not be zero.

Returns

An index of the most significant bit that is set.

Interface __BSR_CONST

Description

Arguments

Returns

See also