1// { dg-do assemble } 2 3// Copyright (C) 1999 Free Software Foundation, Inc. 4// Contributed by Nathan Sidwell 4 Oct 1999 <nathan@acm.org> 5 6// Make sure we diagnose bad uses of va_arg 7 8#include <stdarg.h> 9 10struct X {int m;}; 11struct Y : X {int m;}; 12struct Z; // { dg-error "" } forward decl 13void fn1(va_list args) 14{ 15 int i = va_arg (args, int); 16 Y x = va_arg (args, Y); // { dg-warning "" } cannot receive 17 Y y = va_arg (args, struct Y); // { dg-warning "" } cannot receive 18 int &r = va_arg (args, int &); // { dg-warning "" } cannot receive 19 20 Z z1 = va_arg (args, Z); // { dg-error "" } incomplete 21 const Z &z2 = va_arg (args, Z); // { dg-error "" } incomplete 22 23 va_arg (args, char); // { dg-error "" } promote 24 va_arg (args, int []); // { dg-error "" } promote 25 va_arg (args, int ()); // { dg-error "" } promote 26 va_arg (args, bool); // { dg-error "" } promote 27} 28