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3.2.1.3 Error-handling ¶

You can only compile and get code from a context if no errors occur.

In general, if an error occurs when using an API entrypoint, it returns NULL. You don’t have to check everywhere for NULL results, since the API gracefully handles a NULL being passed in for any argument.

Errors are printed on stderr and can be queried using gccjit;;context;;get_first_error().

C++ Function: const char *gccjit::context::get_first_error (gccjit::context *ctxt) ¶

Returns the first error message that occurred on the context.

The returned string is valid for the rest of the lifetime of the context.

If no errors occurred, this will be NULL.