gcc/testsuite/c-c++-common/builtin-arith-overflow-3.c

   1 /* PR c/90628 */
   2 /* { dg-do compile } */
   3
   4 const int a = 1, b = 2, c = 3;
   5 const long d = 4, e = 5, f = 6;
   6 const long long g = 7, h = 8, i = 9;
   7
   8 void
   9 f1 ()
  10 {
  11   __builtin_add_overflow (a, b, &c);    /* { dg-error "argument 3 in call to function '__builtin_add_overflow' has pointer to 'const' type" } */
  12 }
  13
  14 void
  15 f2 ()
  16 {
  17   __builtin_sub_overflow (d, e, &f);    /* { dg-error "argument 3 in call to function '__builtin_sub_overflow' has pointer to 'const' type" } */
  18 }
  19
  20 void
  21 f3 ()
  22 {
  23   __builtin_mul_overflow (g, h, &i);    /* { dg-error "argument 3 in call to function '__builtin_mul_overflow' has pointer to 'const' type" } */
  24 }
  25
  26 void
  27 f4 ()
  28 {
  29   __builtin_sadd_overflow (a, b, &c);   /* { dg-warning "passing argument 3 of '__builtin_sadd_overflow' discards 'const' qualifier from pointer target type" "" { target c } } */
  30 }       /* { dg-error "invalid conversion from 'const int\\*' to 'int\\*'" "" { target c++ } .-1 } */
  31
  32 void
  33 f5 ()
  34 {
  35   __builtin_ssubl_overflow (d, e, &f);  /* { dg-warning "passing argument 3 of '__builtin_ssubl_overflow' discards 'const' qualifier from pointer target type" "" { target c } } */
  36 }       /* { dg-error "invalid conversion from 'const long int\\*' to 'long int\\*'" "" { target c++ } .-1 } */
  37
  38 void
  39 f6 ()
  40 {
  41   __builtin_smulll_overflow (g, h, &i); /* { dg-warning "passing argument 3 of '__builtin_smulll_overflow' discards 'const' qualifier from pointer target type" "" { target c } } */
  42 }       /* { dg-error "invalid conversion from 'const long long int\\*' to 'long long int\\*'" "" { target c++ } .-1 } */