31 lines
537 B
C
31 lines
537 B
C
|
#include "arith.h"
|
||
|
|
|
||
|
|
int Arith_max(int x, int y) {
|
||
|
|
return x > y ? x : y;
|
||
|
|
}
|
||
|
|
|
||
|
|
int Arith_min(int x, int y) {
|
||
|
|
return x > y ? y : x;
|
||
|
|
}
|
||
|
|
|
||
|
|
int Arith_div(int x, int y) {
|
||
|
|
if (/* division truncates toward 0 */ -13/5 == -2
|
||
|
|
&& /* x and y have different signs */ (x < 0) != (y < 0)
|
||
|
|
&& x%y != 0)
|
||
|
|
return x/y - 1;
|
||
|
|
else
|
||
|
|
return x/y;
|
||
|
|
}
|
||
|
|
|
||
|
|
int Arith_mod(int x, int y) {
|
||
|
|
return x - y*Arith_div(x, y);
|
||
|
|
}
|
||
|
|
|
||
|
|
int Arith_floor(int x, int y) {
|
||
|
|
return Arith_div(x, y);
|
||
|
|
}
|
||
|
|
|
||
|
|
int Arith_ceiling(int x, int y) {
|
||
|
|
return Arith_div(x, y) + (x%y != 0);
|
||
|
|
}
|