[cfe-commits] r39255 - /cfe/cfe/trunk/AST/Decl.cpp

[sabre at cs.uiuc.edu]

Author: sabre
Date: Wed Jul 11 11:42:01 2007
New Revision: 39255

URL: http://llvm.org/viewvc/llvm-project?rev=39255&view=rev
Log:
avoid allocating memory for empty arg lists

Modified:
    cfe/cfe/trunk/AST/Decl.cpp

Modified: cfe/cfe/trunk/AST/Decl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/cfe/trunk/AST/Decl.cpp?rev=39255&r1=39254&r2=39255&view=diff

==============================================================================
--- cfe/cfe/trunk/AST/Decl.cpp (original)
+++ cfe/cfe/trunk/AST/Decl.cpp Wed Jul 11 11:42:01 2007
@@ -37,6 +37,9 @@
   assert(ParamInfo == 0 && "Already has param info!");
   assert(NumParams == getNumParams() && "Parameter count mismatch!");
   
-  ParamInfo = new VarDecl*[NumParams];
-  memcpy(ParamInfo, NewParamInfo, sizeof(VarDecl*)*NumParams);
+  // Zero params -> null pointer.
+  if (NumParams) {
+    ParamInfo = new VarDecl*[NumParams];
+    memcpy(ParamInfo, NewParamInfo, sizeof(VarDecl*)*NumParams);
+  }
 }