mingw-w64-crt/misc/invalid_parameter_handler.c

#include <windows.h>
#include <stdlib.h>

static _invalid_parameter_handler handler;

static _invalid_parameter_handler __cdecl mingw_set_invalid_parameter_handler(_invalid_parameter_handler new_handler)
{
    return InterlockedExchangePointer(&handler, new_handler);
}

_invalid_parameter_handler (__cdecl *__MINGW_IMP_SYMBOL(_set_invalid_parameter_handler))(_invalid_parameter_handler) =
    mingw_set_invalid_parameter_handler;

static _invalid_parameter_handler __cdecl mingw_get_invalid_parameter_handler(void)
{
    return handler;
}

_invalid_parameter_handler (__cdecl *__MINGW_IMP_SYMBOL(_get_invalid_parameter_handler))(void) = mingw_get_invalid_parameter_handler;