See also std::numeric_limits interface.
| Defined in header <cstdint> | |
|---|---|
| PTRDIFF_MIN (C++11) | minimum value of object of std::ptrdiff_t type (macro constant) |
| PTRDIFF_MAX (C++11) | maximum value of object of std::ptrdiff_t type (macro constant) |
| SIZE_MAX (C++11) | maximum value of object of std::size_t type (macro constant) |
| SIG_ATOMIC_MIN (C++11) | minimum value of object of std::sig_atomic_t type (macro constant) |
| SIG_ATOMIC_MAX (C++11) | maximum value of object of std::sig_atomic_t type (macro constant) |
| WCHAR_MIN (C++11) | minimum value of object of wchar_t type (macro constant) |
| WCHAR_MAX (C++11) | maximum value of object of wchar_t type (macro constant) |
| WINT_MIN (C++11) | minimum value of object of std::wint_t type (macro constant) |
| WINT_MAX (C++11) | maximum value of object of std::wint_t type (macro constant) |
Limits of integer types
| Defined in header <climits> | |
|---|---|
| CHAR_BIT | number of bits in byte (macro constant) |
| MB_LEN_MAX | maximum number of bytes in a multibyte character (macro constant) |
| CHAR_MIN | minimum value of char (macro constant) |
| CHAR_MAX | maximum value of char (macro constant) |
| SCHAR_MINSHRT_MININT_MINLONG_MINLLONG_MIN (C++11) | minimum value of signed char, short, int, long and long long respectively (macro constant) |
| SCHAR_MAXSHRT_MAXINT_MAXLONG_MAXLLONG_MAX (C++11) | maximum value of signed char, short, int, long and long long respectively (macro constant) |
| UCHAR_MAXUSHRT_MAXUINT_MAXULONG_MAXULLONG_MAX (C++11) | maximum value of unsigned char, unsigned short, unsigned int,unsigned long and unsigned long long respectively (macro constant) |
Limits of floating point types
| Defined in header <cfloat> | |
|---|---|
| FLT_RADIX | the radix (integer base) used by the representation of all three floating-point types (macro constant) |
| DECIMAL_DIG (C++11) | number of decimal digits that can be converted to long double and back without losing precision (macro constant) |
| FLT_MINDBL_MINLDBL_MIN | minimum value of float, double and long double respectively (macro constant) |
| FLT_MAXDBL_MAXLDBL_MAX | maximum value of float, double and long double respectively (macro constant) |
| FLT_EPSILONDBL_EPSILONLDBL_EPSILON | difference between 1.0 and the next representable value for float, double and long double respectively (macro constant) |
| FLT_DIGDBL_DIGLDBL_DIG | number of decimal digits that can be represented without losing precision for float, double and long double respectively (see std::numeric_limits::digits10 for explanation) (macro constant) |
| FLT_MANT_DIGDBL_MANT_DIGLDBL_MANT_DIG | number of base FLT_RADIX digits that can be represented without losing precision for float, double and long double respectively (macro constant) |
| FLT_MIN_EXPDBL_MIN_EXPLDBL_MIN_EXP | minimum negative integer such that FLT_RADIX raised by power one less than that integer is a normalized float, double and long double respectively (macro constant) |
| FLT_MIN_10_EXPDBL_MIN_10_EXPLDBL_MIN_10_EXP | minimum negative integer such that 10 raised by power one less than that integer is a normalized float, double and long double respectively (macro constant) |
| FLT_MAX_EXPDBL_MAX_EXPLDBL_MAX_EXP | maximum positive integer such that FLT_RADIX raised by power one more than that integer is a normalized float, double and long double respectively (macro constant) |
| FLT_MAX_10_EXPDBL_MAX_10_EXPLDBL_MAX_10_EXP | maximum positive integer such that 10 raised by power one more than that integer is a normalized float, double and long double respectively (macro constant) |
| default rounding mode of floating-point arithmetics (macro constant) | |
| (C++11) | specifies in what precision all arithmetic operations are done (macro constant) |
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