NAME¶

SDL_log - Compute the natural logarithm of x.

SYNOPSIS¶

#include <SDL3/SDL_stdinc.h>

double SDL_log(double x);

DESCRIPTION¶

Domain: 0 < x <= INF

Range: -INF <= y <= INF

It is an error for x to be less than or equal to 0.

This function operates on double-precision floating point values, use SDL_logf for single-precision floats.

This function may use a different approximation across different versions, platforms and configurations. i.e, it can return a different value given the same input on different machines or operating systems, or if SDL is updated.

FUNCTION PARAMETERS¶

x

floating point value. Must be greater than 0.

RETURN VALUE¶

Returns the natural logarithm of x.

THREAD SAFETY¶

It is safe to call this function from any thread.

AVAILABILITY¶

This function is available since SDL 3.2.0.

SEE ALSO¶

SDL_logf(3), SDL_log10(3), SDL_exp(3)