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|
%module preproc_defined
// Check 'defined' passes through the preprocessor without being processed like '#if defined(ABC)' would be (SF bug #1940536)
%define DEFINED_MACRO
%{
int defined(int b) {
return b > 10;
}
int vvv = -1;
void fn(int val) {
if (defined(val))
vvv = 1;
else
vvv = 0;
}
%}
%enddef
DEFINED_MACRO
%{
int checking(void) {
int okay;
fn(11);
okay = (vvv == 1);
fn(9);
okay = okay && (vvv == 0);
return okay; /* should be 1 */
}
%}
%inline %{
int call_checking(void) {
return checking();
}
%}
/*****************************************************************************/
/* Check #if/#elif defined() macro expansions
Also checks #if/#elif defined() works correctly within macros... this is not
standard C, but is now relied on in the SWIG library. */
/*****************************************************************************/
#define AAA
#define BBB
#define CCC
#if defined(AAA)\
&& defined(BBB) \
&& defined(CCC)
%{
void thing(int i) {}
void stuff(int i) {}
struct Defined {
int defined;
};
void bumpf(int i) {}
%}
#else
#endif
%define ANOTHER_MACRO(TYPE)
#if defined(AAA) && defined(BBB) && defined(CCC)
void thing(TYPE) {}
#else
void thing_not(TYPE) {}
#endif
#if defined(AAA) &&\
defined(BBB) \\
&& defined(CCC)
void stuff(TYPE) {}
#else
void stuff_not(TYPE);
#endif
#if defined(0)
void defined_not(TYPE);
#elif defined(AAA) && defined( BBB ) && defined(CCC)
struct Defined {
int defined;
};
#else
void defined_not(TYPE);
#endif
#if !( defined(AAA) &&\
defined(BBB) \\
&& defined(CCC) )
void bumpf_not(TYPE);
#else
void bumpf(TYPE) {}
#endif
%enddef
ANOTHER_MACRO(int)
%{
void another_macro_checking(void) {
struct Defined d;
d.defined = 10;
(void)d;
thing(10);
stuff(10);
bumpf(10);
}
%}
/* Check that unknown preprocessor directives are ignored inside an inactive
* conditional (github issue #394).
*/
#ifdef APPLE_OPENGL
# import <OpenGLES/ES1/gl.h>
#endif
#ifdef AAA
# define B
#else
# wibble wibble
#endif
#if 0
# wobble wobble
#endif
/* Check that #error is ignored inside an inactive conditional. */
#ifdef THIS_IS_NOT_DEFINED
# error should not trigger 1
#endif
#ifdef AAA
# define B
#else
# error should not trigger 2
#endif
#if 0
# error should not trigger 3
#endif
/* Check that #warning is ignored inside an inactive conditional. */
#ifdef THIS_IS_NOT_DEFINED
# warning should not trigger 1
#endif
#ifdef AAA
# define B
#else
# warning should not trigger 2
#endif
#if 0
# warning should not trigger 3
#endif
/* Regression test for https://sourceforge.net/p/swig/bugs/1163/
* ONE(1)(2) should expand to `2` but SWIG was expanding it to `TWO(2)`
* which results in the generated C wrapper failing to compile.
*/
#define ONE(X) TWO
#define TWO(X) X
%constant int a = ONE(1)(2);
#define XXX TWO
%constant int b = XXX(42);
#undef ONE
#undef TWO
/*
* The behaviour of Self-Referential Macros is defined
* https://gcc.gnu.org/onlinedocs/gcc-4.8.5/cpp/Self-Referential-Macros.html
*/
%inline %{
const int y = 0;
%}
#define x (4 + y)
#define y (2 * x)
%constant int z = y;
#undef y
#undef x
/* Regression test for #ifdef and #ifndef not working inside a %define.
* https://github.com/swig/swig/issues/2183
*/
#undef THISMACROISNOTDEFINED /* Make sure! */
#define THISMACROISDEFINED
%define %test()
#ifdef THISMACROISNOTDEFINED
# error #ifdef inside percent-define failed
#endif
#ifndef THISMACROISDEFINED
# error #ifndef inside percent-define failed
#endif
/* Check pre-defined macro too. */
#ifndef SWIG
# error #ifndef inside percent-define failed
#endif
/* These cases already worked, but should still have test coverage. */
#if defined THISMACROISNOTDEFINED
# error #if defined inside percent-define failed
#endif
#if !defined THISMACROISDEFINED
# error #if !defined inside percent-define failed
#endif
/* Check pre-defined macro too. */
#if !defined SWIG
# error #if !defined inside percent-define failed
#endif
%enddef
%test()
|
