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Location: cpp/openttd-patchpack/source/src/core/math_func.cpp - annotation
r11718:aded86618f59
923 B
text/x-c
(svn r16111) -Cleanup: remove some duplicate/unused strings
-Change: move a string to a more sensible location
-Change: move a string to a more sensible location
r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 r11414:66dd9ef9c484 | /* $Id$ */
/** @file math_func.cpp Math functions. */
#include "../stdafx.h"
#include "math_func.hpp"
/**
* Compute least common multiple (lcm) of arguments \a a and \a b, the smallest
* integer value that is a multiple of both \a a and \a b.
* @param a First number.
* @param b second number.
* @return Least common multiple of values \a a and \a b.
*
* @note This function only works for non-negative values of \a a and \a b.
*/
int LeastCommonMultiple(int a, int b)
{
if (a == 0 || b == 0) return 0; // By definition.
if (a == 1 || a == b) return b;
if (b == 1) return a;
return a * b / GreatestCommonDivisor(a, b);
}
/**
* Compute greatest common divisor (gcd) of \a a and \a b.
* @param a First number.
* @param b second number.
* @return Greatest common divisor of \a a and \a b.
*/
int GreatestCommonDivisor(int a, int b)
{
while (b != 0) {
int t = b;
b = a % b;
a = t;
}
return a;
}
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