File: mzero5.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A12.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 959,712 kB
  • sloc: cpp: 3,275,382; ansic: 2,061,766; ada: 840,956; f90: 208,513; makefile: 76,132; asm: 73,433; xml: 50,448; exp: 34,146; sh: 32,436; objc: 15,637; fortran: 14,012; python: 11,991; pascal: 6,787; awk: 4,779; perl: 3,054; yacc: 338; ml: 285; lex: 201; haskell: 122
file content (29 lines) | stat: -rw-r--r-- 455 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
/* Test gcse handling of IEEE 0/-0 rules.  */
static double zero = 0.0;

int
negzero_check (double d)
{
  if (d == 0)
    return !!memcmp ((void *)&zero, (void *)&d, sizeof (double));
  return 0;
}

int
sub (double d, double e)
{
  if (d == 0.0 && e == 0.0
      && negzero_check (d) == 0 && negzero_check (e) == 0)
    return 1;
  else
    return 0;
}

int
main (void)
{
  double minus_zero = -0.0;
  if (sub (minus_zero, 0))
    abort ();
  return 0;
}