[vtk-developers] Some interesting warnings from the clang compiler

[Michael Halle]

Originally, C supported syntax like =- as a synonym for -=, but deprecated it because it was error prone (it relied on whitespace for disambiguation). I think that's what the warning means. Just put spaces around the equals sign. 

-Mike 



On Jul 29, 2010, at 8:56 AM, David Gobbi <david.gobbi at gmail.com> wrote:

> The clang compiler has found some interesting warnings.  Can someone
> look into the vtkFunctionParser one?  I'll deal with the Tcl wrapper
> ones.
> 
> vtk-git/Common/vtkFunctionParser.cxx:555:36: warning: use of unary
> operator that may be intended as compound assignment (-=)
>         this->Stack[stackPosition] =- this->Stack[stackPosition];
> 
> vtk-git-clang/Common/vtkObjectTcl.cxx:153:27: warning: conversion
> specifies type 'unsigned short' but the argument has type 'int'
> [-Wformat]
>     sprintf(tempResult,"%hu",temp20);
> [ditto for several other tcl-wrapped objects]
> 
> Full list here:
> 
> http://www.cdash.org/CDash/viewBuildError.php?type=1&buildid=678985
> 
>  David
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