mirror of
https://github.com/zeldaret/oot.git
synced 2024-12-04 16:55:56 +00:00
e84f5ab387
* Un-fake a couple of matches in memory manip functions * Document fmodf * Un-fake a couple of matches in memory manip functions * Document fmodf * Rename functions and files * Document memmove, memsets, memcpys * Format * Sort out some missing sizeofs * Name fmodf * Rename local variables * size_t * Use COBRA_SHADOW_TEX_SIZE * Review * Tweak the Doxyfile to remove @brief requirement * Roman's review * Fix a bug comment * Change fmodf
27 lines
753 B
C
27 lines
753 B
C
#include "global.h"
|
|
|
|
/**
|
|
* Computes one `x` modulo `y` for floats.
|
|
*
|
|
* Acts like the standard C fmodf except does not handle Infinity. See https://en.cppreference.com/w/c/numeric/math/fmod
|
|
* for the details. It summarizes this function as follows:
|
|
* "The floating-point remainder of the division operation x/y calculated by this function is exactly the value x - n*y,
|
|
* where n is x/y with its fractional part truncated.
|
|
*
|
|
* The returned value has the same sign as x and is less or equal to y in magnitude."
|
|
*
|
|
* @param x dividend
|
|
* @param y modulus
|
|
*
|
|
* @return f32 0.0f if y is 0.0f, or x modulo y otherwise
|
|
*/
|
|
f32 fmodf(f32 x, f32 y) {
|
|
s32 n;
|
|
|
|
if (y == 0.0f) {
|
|
return 0.0f;
|
|
}
|
|
n = x / y;
|
|
|
|
return x - (n * y);
|
|
}
|