Examples/test-suite/preproc_predefined.i

%module preproc_predefined

/* Test that SWIG_VERSION is defined at SWIG-time and in the wrapper. */
#ifndef SWIG_VERSION
# error SWIG_VERSION not defined at SWIG-time
#endif
%{
#ifndef SWIG_VERSION
# error SWIG_VERSION not defined in the generated wrapper
#endif
%}

/* Test that SWIG_VERSION has a plausible value - in particular catch if
 * it isn't defined to a numeric value (which will get replaced by 0).
 */
#if SWIG_VERSION < 0x040100
# error SWIG_VERSION value not plausible at SWIG-time
#endif
%{
#if SWIG_VERSION < 0x040100
# error SWIG_VERSION value not plausible in the generated wrapper
#endif
%}

%define %generate_swig_version_from_preprocessor()%#define SWIG_VERSION_FROM_SWIG_PREPROCESSOR SWIG_VERSION %enddef
%insert("header") {
%generate_swig_version_from_preprocessor()
}
%insert("header") %{
#if SWIG_VERSION != SWIG_VERSION_FROM_SWIG_PREPROCESSOR
# error SWIG_VERSION in SWIG preprocessor does not match SWIG_VERSION from C preprocessor
#endif
%}

/* Test that SWIGVERSION is NOT defined at SWIG-time or in the wrapper.
 * It used to be defined in the wrapper as a side-effect of how SWIG_VERSION
 * was defined in the wrapper but was never documented and is redundant.
 */
#ifdef SWIGVERSION
# error SWIGVERSION should not be defined at SWIG-time
#endif
%{
#ifdef SWIGVERSION
# error SWIGVERSION should not be defined in the generated wrapper
#endif
%}

/* Test that SWIG is defined at SWIG-time but not in the wrapper. */
#ifndef SWIG
# error SWIG not defined at SWIG-time
#endif
%{
#ifdef SWIG
# error SWIG should not be defined in the generated wrapper
#endif
%}

/* Test that __STDC__ is defined by SWIG with value 1 (in SWIG < 4.2.0
 * it was defined but with an empty value.
 */
#ifndef __STDC__
# error __STDC__ not defined at SWIG-time
#endif
#if __STDC__-0 != 1
# error __STDC__ value not 1 at SWIG-time
#endif

/* Test that __cplusplus isn't defined (this testcase is processed as C). */
#ifdef __cplusplus
# error __cplusplus defined in C mode
#endif

/* Test that SWIGxxx is defined at SWIG-time and in the wrapper. */
%include "preproc_predefined.h"
%{
#include "preproc_predefined.h"
%}