GCC : Segmentation Fault from Trim function

I got a gcc "Segmentation Fault" error with this script : http://paste2.org/p/1397204, why ?

I tested this code with Visual C++ compiler and I don开发者_开发问答't get any error...

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Thanks to MByD according to Getting Segmentation Fault topic.

Replace :

printf("|%s|\n", trim("  MyStringHaveToBeTrimmed  "));

With :

char str[] = "  MyStringHaveToBeTrimmed  ";
printf("|%s|\n", trim(str));

New code : http://paste2.org/p/1397248