(See SDL3/SDL_MostSignificantBitIndex32 for the SDL3 version.)

SDL_MostSignificantBitIndex32

Use this function to get the index of the most significant (set) bit in a

Header File

Defined in SDL_bits.h

Syntax

SDL_FORCE_INLINE int SDL_MostSignificantBitIndex32(Uint32 x);

Function Parameters

Uint32

x

the number to find the MSB of.

Return Value

(int) Returns the index of the most significant bit of x, or -1 if x is 0.

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CategoryAPI, CategoryAPIFunction, CategoryBits

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