[cfe-dev] graphviz problem

[Zhongxing Xu]

I fixed it.

http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Analysis/MemRegion.cpp?r1=59014&r2=59015&view=diff&pathrev=59015
On Mon, Nov 10, 2008 at 9:12 PM, Zhongxing Xu <xuzhongxing at gmail.com> wrote:

> When running clang with the following command:
>
> clang -checker-simple -analyzer-store-region -analyzer-viz-egraph-graphviz
> example.c
>
> on the following code:
>
> #include <sys/types.h>
> #include <sys/stat.h>
> #include <fcntl.h>
>
> void write_file(int append) {
>   char* tempname = 0;
>   if (append == 1)
>     tempname = "a";
>
>
>   if (append == 1)
>     open(tempname, O_RDONLY);
> }
>
> I got the following error:
>
> ANALYZE: int.c write_file
> Writing '/tmp/llvm_n297pA/GRExprEngine.dot'...  done.
> Running 'dot' program... Error: Invalid 2-byte UTF8 found in input. Perhaps
> "-Gcharset=latin1" is needed?
> Error viewing graph: '
>
> It seems that "a" is too short for 'dot'. When the string is "aa", "aap" is
> printed in the generated PS graph. When the string is "aaa" or longer, 'dot'
> works fine.
>
>
>
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