gcc/testsuite/g++.old-deja/g++.other/vaarg3.C

   1 // { dg-do assemble  }
   2 // { dg-options "-Wno-abi" { target arm_eabi } }
   3
   4 // Copyright (C) 1999 Free Software Foundation, Inc.
   5 // Contributed by Nathan Sidwell 4 Oct 1999 <nathan@acm.org>
   6
   7 // Make sure we diagnose bad uses of va_arg
   8
   9 #include <stdarg.h>
  10
  11 struct X {int m;};
  12 struct Y { Y(const Y&); };
  13 struct Z;   // { dg-error "forward decl" }
  14 void fn1(va_list args)
  15 {
  16   int i = va_arg (args, int);
  17   Y x = va_arg (args, Y);         // { dg-error "cannot receive" }
  18   Y y = va_arg (args, struct Y);  // { dg-error "cannot receive" }
  19   int &r = va_arg (args, int &);  // { dg-error "cannot receive" }
  20
  21   Z z1 = va_arg (args, Z);        // { dg-error "incomplete" }
  22   const Z &z2 = va_arg (args, Z);       // { dg-error "incomplete" }
  23
  24   va_arg (args, char);    // { dg-warning "promote" }
  25   // { dg-message "should pass" "pass" { target *-*-* } 24 }
  26   // { dg-message "abort" "abort" { target *-*-* } 24 }
  27   va_arg (args, int []);  // { dg-error "array with unspecified bounds" } promote
  28   va_arg (args, int ());  // { dg-warning "promoted" } promote
  29   // { dg-message "abort" "abort" { target *-*-* } 28 }
  30   va_arg (args, bool);    // { dg-warning "promote" "promote" }
  31   // { dg-message "abort" "abort" { target *-*-* } 30 }
  32 }