if (1) { \
simgrid::kernel::actor::ActorImpl* _smx_throw_issuer = (issuer); /* evaluate only once */ \
xbt_ex e(XBT_THROW_POINT, msg); \
if (1) { \
simgrid::kernel::actor::ActorImpl* _smx_throw_issuer = (issuer); /* evaluate only once */ \
xbt_ex e(XBT_THROW_POINT, msg); \