summaryrefslogtreecommitdiff
path: root/gcc/testsuite/gcc.dg/pr19984.c
blob: 5323c461fb0f8bb9a4ff6691eedadefdde6a028b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
/* PR c/19984 */
/* { dg-do compile } */
/* { dg-options "-O2 -std=c99" } */


double nan (const char *);

const double nok = nan ("");	/* { dg-warning "(not a constant)|(near initialization)" } */

const double ok = __builtin_nan ("");

double
foo ()
{
  double ok2 = nan ("");
  return ok2;
}