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Download Extending and Embedding Perl by Simon Cozens, Tim Jenness PDF

By Simon Cozens, Tim Jenness

A proof of the way to extend the performance and value of the Perl programming language, this advisor delves into the advanced problems with utilizing genuine code examples from the Perl resource. distinctive is find out how to use Perl from C courses, corresponding to writing interfaces to C libraries, ideas on enforcing Perl callbacks for C libraries, passing Perl hashes and arrays among Perl and C. also, builders are supplied with an API reference for the interior C interface to Perl and a reference at the typemap method.

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Additional info for Extending and Embedding Perl

Sample text

This file is not required, but is recommended in order to test the integrity of the distribution and to create a distribution file when using make dist. pl file and the t directory Although it isn’t a requirement, all module distributions should include a test suite. Test files are important for testing the integrity of the module. They can be used to ensure that the module works now, that it works after improvements are made, and that it works on platforms that may not be accessible to the module author.

8 CONTROL CONSTRUCTS Because Perl borrowed its syntax heavily from C, C’s control constructs should be familiar to you. }, do { ... ) and for(;;), and they all work the same way they do in Perl. 1 Statements and blocks However, in C, one difference is that you can omit the braces from a block under a control construct if that block contains only one statement. h> int main(int argc, char *argv[]) { unsigned char i; int printables = 0; for (i=0; i<255; i++) if (isprint(i)) printables++; 7 Probably.

The compiler and compiler options are the same as those used to compile Perl itself. The values can be retrieved from the Config module. PL. h The final step in library creation is to combine all the object files (there can be more than one if additional code is required) and generate the shared library. Again, the process is platform dependent, and the methods are retrieved from the Config module. xs file in the directory and modifies the resulting Makefile to process that file in addition to the Perl module.

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