Fixed warning about strict-aliasing rules and don't die on warnings by default.

1 files changed, 7 insertions, 6 deletions

diff --git a/src/utils/fastsqrt.h b/src/utils/fastsqrt.h
index 8ba6f8ce..8da1d354 100644
--- a/src/utils/fastsqrt.h
+++ b/src/utils/fastsqrt.h
@@ -9,15 +9,16 @@
 

 float fastInvSqrt(float x)

 {

-    float xhalf = 0.5f*x;

-    int i = *(int*)&x;

-    i = 0x5f375a86- (i>>1);

-    x = *(float*)&i;

-    x = x*(1.5f-xhalf*x*x);

+    union { int i; float x; } tmp;

+    float xhalf = 0.5f * x;

+    tmp.x = x;

+    tmp.i = 0x5f375a86 - (tmp.i >> 1);

+    x = tmp.x;

+    x = x * (1.5f - xhalf * x * x);

     return x;

 }

 

 float fastSqrt(float x)

 {

-    return 1.0f/fastInvSqrt(x);

+    return 1.0f / fastInvSqrt(x);

 }