diff --git a/all.h b/all.h
index 6b75b2c..99639ac 100644
--- a/all.h
+++ b/all.h
@@ -220,7 +220,9 @@
 #define MemoryZeroStruct(d,s) MemoryZero((d),sizeof(s))
 #define Min(a,b) (((a)<(b))?(a):(b))
 #define Max(a,b) (((a)>(b))?(a):(b))
+#define Clamp(x,lo,hi) (Min(Max(x,lo),hi))
 #define Abs(x) (((x)<0)?((x)*-1):(x))
+#define Roundf(x) ((i64)(x >= 0 ? x + 0.5f : x - 0.5f))
 
 #define SetFlag(flags, bit)     ((flags) |= (1ULL << (bit)))
 #define ClearFlag(flags, bit)   ((flags) &= ~(1ULL << (bit)))