All members have specializations but these values are not required to be meaningful. Any value that is not meaningful is set to 0 or false.
The contents of <climits> are the same as standard C's limits.h and the contents of <cfloat> are the same as standard C's float.h.
| CHAR_BIT | CHAR_MAX | CHAR_MIN | INT_MAX |
| INT_MIN | LONG_MAX | LONG_MIN | MB_LEN_MAX |
| SCHAR_MAX | SCHAR_MIN | SHRT_MAX | SHRT_MIN |
| UCHAR_MAX | UINT_MAX | ULONG_MAX | USHRT_MAX |
The header <cfloat> is the same as standard C float.h
| DBL_DIG | DBL_EPSILON | DBL_MANT_DIG |
| DBL_MAX | DBL_MAX_10_EXP | DBL_MAX_EXP |
| DBL_MIN | DBL_MIN_10_EXP | DBL_MIN_EXP |
| FLT_DIG | FLT_EPSILON | FLT_MANT_DIG |
| FLT_MAX | FLT_MAX_10_EXP | FLT_MAX_EXP |
| FLT_MIN | FLT_MIN_10_EXP | FLT_MIN_EXP |
| FLT_RADIX | FLT_ROUNDS | LDBL_DIG |
| LDBL_EPSILON | LDBL_MANT_DIG | LDBL_MAX |
| LDBL_MAX_10_EXP | LDBL_MAX_EXP | LDBL_MIN |
| LDBL_MIN_10_EXP | LDBL_MIN_EXP |