/* { dg-do run } */ #include <complex> typedef std::complex<double> NumType; void multiply(NumType a, NumType b, unsigned ac, NumType &ab) { NumType s; for (unsigned j=0; j<ac; j++) s = a * b; ab = s; } extern "C" void abort (void); int main() { NumType a(1,2), b(3,-2), c; multiply(a, b, 1, c); if (c.real() != 7 || c.imag() != 4) abort (); return 0; }