diff options
Diffstat (limited to 'src/util')
| -rw-r--r-- | src/util/macros.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/util/macros.h b/src/util/macros.h index 9dea2a0..27d1b62 100644 --- a/src/util/macros.h +++ b/src/util/macros.h @@ -229,4 +229,17 @@ do { \ /** Compute ceiling of integer quotient of A divided by B. */ #define DIV_ROUND_UP( A, B ) ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 ) +/** Clamp X to [MIN,MAX] */ +#define CLAMP( X, MIN, MAX ) ( (X)<(MIN) ? (MIN) : ((X)>(MAX) ? (MAX) : (X)) ) + +/** Minimum of two values: */ +#define MIN2( A, B ) ( (A)<(B) ? (A) : (B) ) + +/** Maximum of two values: */ +#define MAX2( A, B ) ( (A)>(B) ? (A) : (B) ) + +/** Minimum and maximum of three values: */ +#define MIN3( A, B, C ) ((A) < (B) ? MIN2(A, C) : MIN2(B, C)) +#define MAX3( A, B, C ) ((A) > (B) ? MAX2(A, C) : MAX2(B, C)) + #endif /* UTIL_MACROS_H */ |