chnage "negative zero" check to actually check the bit pattern of IEEE negative zeros...

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@9141 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/prvm_execprogram.h b/prvm_execprogram.h
index 97bf15d729d5838ca67b65f9fd82a0547be1f09b..f29299d21a599619f2436e0061a97a726a346abf 100644 (file)
--- a/prvm_execprogram.h
+++ b/prvm_execprogram.h
@@ -259,8 +259,8 @@
                //==================
 
                        case OP_IFNOT:
-                               if (!OPA->_float)
-                               // TODO add an "int-ifnot"
+                               if (!(OPA->_int & 0x7FFFFFFF)) // also match "negative zero" floats of value 0x80000000
+                               // TODO add an "int-if", and change this one to OPA->_float
                                // although mostly unneeded, thanks to the only float being false being 0x0 and 0x80000000 (negative zero)
                                // and entity, string, field values can never have that value
                                {
@@ -280,8 +280,8 @@
                                break;
 
                        case OP_IF:
-                               if (OPA->_float)
-                               // TODO add an "int-if"
+                               if (!(OPA->_int & 0x7FFFFFFF)) // also match "negative zero" floats of value 0x80000000
+                               // TODO add an "int-if", and change this one to OPA->_float
                                // although mostly unneeded, thanks to the only float being false being 0x0 and 0x80000000 (negative zero)
                                // and entity, string, field values can never have that value
                                {