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

   1 /* N1150 4: Characteristics of decimal floating types <float.h>.
   2    C99 5.2.4.2.2a[3]: New.
   3
   4    Verify constants about range of decimal float and three components of
   5    decimal float defined in float.h.  */
   6
   7 /* Make sure we are exporting the right values to float.h. */
   8 #ifndef __STDC_WANT_DEC_FP__
   9 #define __STDC_WANT_DEC_FP__ 1
  10 #endif
  11
  12 #include "dfp-dbg.h"
  13 #include <float.h>
  14
  15 int main ()
  16 {
  17   if (DEC32_MANT_DIG != 7) FAILURE
  18   if (DEC64_MANT_DIG != 16) FAILURE
  19   if (DEC128_MANT_DIG != 34) FAILURE
  20
  21   if (DEC32_MIN_EXP != -94) FAILURE
  22   if (DEC64_MIN_EXP != -382) FAILURE
  23   if (DEC128_MIN_EXP != -6142) FAILURE
  24
  25   if (DEC32_MAX_EXP != 97) FAILURE
  26   if (DEC64_MAX_EXP != 385) FAILURE
  27   if (DEC128_MAX_EXP != 6145) FAILURE
  28
  29   if (DEC32_MAX != 9.999999E96DF) FAILURE
  30   if (DEC64_MAX != 9.999999999999999E384DD) FAILURE
  31   if (DEC128_MAX != 9.999999999999999999999999999999999E6144DL) FAILURE
  32
  33   if (DEC32_EPSILON != 1E-6DF) FAILURE
  34   if (DEC64_EPSILON != 1E-15DD) FAILURE
  35   if (DEC128_EPSILON != 1E-33DL) FAILURE
  36
  37   if (DEC32_MIN != 1E-95DF) FAILURE
  38   if (DEC64_MIN != 1E-383DD) FAILURE
  39   if (DEC128_MIN != 1E-6143DL) FAILURE
  40
  41   if (DEC32_SUBNORMAL_MIN != 0.000001E-95DF) FAILURE
  42   if (DEC64_SUBNORMAL_MIN != 0.000000000000001E-383DD) FAILURE
  43   if (DEC128_SUBNORMAL_MIN != 0.000000000000000000000000000000001E-6143DL)
  44     FAILURE
  45
  46   FINISH
  47 }