How are you linking your Perl code to the C code? Are you using Inline::C? Otherwise, if you pass in a Perl scalar, you will need to use the appropriate macros to get at the data payload. To get at the string part of a scalar, you need to use

char* strval = SvPV(str);

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I recommend looking at illguts to learn about the low level Perl data structures.

In reply to Re: usage libc in perl, how using char's? by Corion
in thread usage libc in perl, how using char's? by gants

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