swig/Examples/c/exception/example.h
Vadim Zeitlin d2546e23ff Don't use exception specification with C++ compiler in example
Support for the exception specifications using types was removed in
C++17 (and "throw ()" in C++20), so don't use them when using the C++
compiler any longer, as this broke the example with recent g++ versions
that use C++17 by default.

We still need them for SWIG, however, so use SWIG_THROW macro, defined
differently for SWIG and the compiler, to preserve the existing
behaviour.

Using %except might be a better idea, but would require more changes.
2021-11-24 20:16:42 +01:00

44 lines
748 B
C++

/* File : example.h */
#ifndef SWIG
struct A {
};
#define SWIG_THROW(...)
#endif
class Exc {
public:
Exc(int c, const char *m) {
code = c;
strncpy(msg,m,256);
}
int code;
char msg[256];
};
class Test {
public:
int simple() SWIG_THROW(int&) {
throw(37);
return 1;
}
int message() SWIG_THROW(const char *) {
throw("I died.");
return 1;
}
int hosed() SWIG_THROW(Exc) {
throw(Exc(42,"Hosed"));
return 1;
}
int unknown() SWIG_THROW(A*) {
static A a;
throw &a;
return 1;
}
int multi(int x) SWIG_THROW(int, const char *, Exc) {
if (x == 1) throw(37);
if (x == 2) throw("Bleah!");
if (x == 3) throw(Exc(42,"No-go-diggy-die"));
return 1;
}
};