Came across an interesting little problem I thought others might find
amusing:
In a new C++ module for the server dll, I have the following:
#include "extdll.h"
.
.
.
extern "C" {
#include "pm_debug.h"
}
pm_debug.h contains the following prototype:
void PM_DrawRectangle(vec3_t tl, vec3_t bl, vec3_t tr,
vec3_t br, int pcolor, float life);
Everything compiled without a peep from the compiler, but the program
crashed when I called PM_DrawRectangle from the C++ module. Tracing
through in the debugger, I noticed that the copy constructor for class
Vector was being called during the call to PM_DrawRectangle! The
preprocessor replaced all the "vec3_t"s with "Vector", because extdll.h
#defines vec3_t as Vector. The linker didn't complain, either, which I
can't say I understand, since in the preprocessor output for pm_debug.c the
vec3_t's are unchanged.
Jim
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