File: main.c

package info (click to toggle)
cbmc 5.12-5
  • links: PTS
  • area: main
  • in suites: bullseye
  • size: 92,512 kB
  • sloc: cpp: 301,761; ansic: 51,699; java: 27,534; python: 5,113; yacc: 4,756; makefile: 3,184; lex: 2,749; sh: 1,347; perl: 555; xml: 404; pascal: 203; ada: 36
file content (33 lines) | stat: -rw-r--r-- 742 bytes parent folder | download | duplicates (7) 
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
30
31
32
33
 
/*
** largestSubnormalFloat.c
**
** Martin Brain
** martin.brain@cs.ox.ac.uk
** 25/07/12
**
*/

#include <assert.h>
#include <math.h>

int main (void)
{
  #ifdef __GNUC__
  // Visual Studio won't parse the hexadecimal floating-point literal
  float largestSubnormalFloat = 0x1.fffffcp-127f;

  assert(fpclassify(largestSubnormalFloat) != FP_NAN);
  assert(fpclassify(largestSubnormalFloat) != FP_INFINITE);
  assert(fpclassify(largestSubnormalFloat) != FP_ZERO);
  assert(fpclassify(largestSubnormalFloat) != FP_NORMAL);
  assert(fpclassify(largestSubnormalFloat) == FP_SUBNORMAL);

  assert(__fpclassifyf(largestSubnormalFloat) == FP_SUBNORMAL);

  char b = __CPROVER_isnormalf(largestSubnormalFloat);

  assert(!b);
  #endif

  return 0;
}