gcc/testsuite/gcc.dg/dfp/decfloat-constants.c

   1 /* { dg-options "-std=gnu99" } */
   2
   3 /* N1150 4: Characteristics of decimal floating types <float.h>.
   4    C99 5.2.4.2.2a[3]: New.
   5
   6    Verify constants about range of decimal float and three components of
   7    decimal float defined in float.h.  */
   8
   9 /* Make sure we are exporting the right values to float.h. */
  10 #ifndef __STDC_WANT_DEC_FP__
  11 #define __STDC_WANT_DEC_FP__ 1
  12 #endif
  13
  14 #include <float.h>
  15
  16 extern void abort (void);
  17
  18 int main ()
  19 {
  20   if (DEC32_MANT_DIG != 7) abort();
  21   if (DEC64_MANT_DIG != 16) abort();
  22   if (DEC128_MANT_DIG != 34) abort();
  23
  24   if (DEC32_MIN_EXP != -95) abort();
  25   if (DEC64_MIN_EXP != -383) abort();
  26   if (DEC128_MIN_EXP != -6143) abort();
  27
  28   if (DEC32_MAX_EXP != 96) abort();
  29   if (DEC64_MAX_EXP != 384) abort();
  30   if (DEC128_MAX_EXP != 6144) abort();
  31
  32   if (DEC32_MAX != 9.999999E96DF) abort();
  33   if (DEC64_MAX != 9.999999999999999E384DD) abort();
  34   if (DEC128_MAX != 9.999999999999999999999999999999999E6144DL) abort();
  35
  36   if (DEC32_EPSILON != 1E-6DF) abort();
  37   if (DEC64_EPSILON != 1E-15DD) abort();
  38   if (DEC128_EPSILON != 1E-33DL) abort();
  39
  40   if (DEC32_MIN != 1E-95DF) abort();
  41   if (DEC64_MIN != 1E-383DD) abort();
  42   if (DEC128_MIN != 1E-6143DL) abort();
  43
  44   if (DEC32_DEN != 0.000001E-95DF) abort();
  45   if (DEC64_DEN != 0.000000000000001E-383DD) abort();
  46   if (DEC128_DEN != 0.000000000000000000000000000000001E-6143DL) abort();
  47
  48   return 0;
  49 }