include/float.h

   1 /* The <float.h> header defines some implementation limits for (IEEE) floating
   2  * point. Application programs can use it to find out how big and small
   3  * floating-point numbers can be, what epsilon to use for iteration, etc.
   4  */
   5
   6 #ifndef _FLOAT_H
   7 #define _FLOAT_H
   8
   9 #define FLT_DIG                 6
  10 #define FLT_EPSILON             1.19209290e-07F
  11 #define FLT_MANT_DIG            24
  12 #define FLT_MAX                 3.40282347e+38F
  13 #define FLT_MAX_10_EXP          38
  14 #define FLT_MAX_EXP             128
  15 #define FLT_MIN                 1.17549435e-38F
  16 #define FLT_MIN_10_EXP          -37
  17 #define FLT_MIN_EXP             -125
  18
  19 #define DBL_DIG                 15
  20 #define DBL_EPSILON             2.2204460492503131e-16
  21 #define DBL_MANT_DIG            53
  22 #define DBL_MAX                 1.7976931348623157e+308
  23 #define DBL_MAX_10_EXP          308
  24 #define DBL_MAX_EXP             1024
  25 #define DBL_MIN                 2.2250738585072014e-308
  26 #define DBL_MIN_10_EXP          -307
  27 #define DBL_MIN_EXP             -1021
  28
  29 #define LDBL_DIG                15
  30 #define LDBL_EPSILON            2.2204460492503131e-16L
  31 #define LDBL_MANT_DIG           53
  32 #define LDBL_MAX                1.7976931348623157e+308L
  33 #define LDBL_MAX_10_EXP         308
  34 #define LDBL_MAX_EXP            1024
  35 #define LDBL_MIN                2.2250738585072014e-308L
  36 #define LDBL_MIN_10_EXP         -307
  37 #define LDBL_MIN_EXP            -1021
  38
  39 #define FLT_ROUNDS              1
  40 #define FLT_RADIX               2
  41
  42 #endif /* _FLOAT_H */