C numeric limits interface

From cppreference.com
 
 
 
Type support
Basic types
Fundamental types
Fixed width integer types (C++11)
Numeric limits
numeric_limits
C numeric limits interface
Runtime type information
Type traits
Primary type categories
is_void (C++11)
is_array (C++11)
is_pointer (C++11)
is_enum (C++11)
is_union (C++11)
is_class (C++11)
is_function (C++11)
is_object (C++11)
is_scalar (C++11)
is_compound (C++11)
is_integral (C++11)
is_floating_point (C++11)
is_fundamental (C++11)
is_arithmetic (C++11)
is_reference (C++11)
is_lvalue_reference (C++11)
is_rvalue_reference (C++11)
is_member_pointer (C++11)
is_member_object_pointer (C++11)
is_member_function_pointer (C++11)
Type properties
is_const (C++11)
is_volatile (C++11)
is_pod (C++11)
is_empty (C++11)
is_polymorphic (C++11)
is_abstract (C++11)
Supported operations
is_constructible
is_trivially_constructible
is_nothrow_constructible
(C++11)
(C++11)
(C++11)
is_default_constructible
is_trivially_default_constructible
is_nothrow_default_constructible
(C++11)
(C++11)
(C++11)
is_copy_constructible
is_trivially_copy_constructible
is_nothrow_copy_constructible
(C++11)
(C++11)
(C++11)
is_move_constructible
is_trivially_move_constructible
is_nothrow_move_constructible
(C++11)
(C++11)
(C++11)
is_assignable
is_trivially_assignable
is_nothrow_assignable
(C++11)
(C++11)
(C++11)
is_copy_assignable
is_trivially_copy_assignable
is_nothrow_copy_assignable
(C++11)
(C++11)
(C++11)
is_move_assignable
is_trivially_move_assignable
is_nothrow_move_assignable
(C++11)
(C++11)
(C++11)
is_destructible
is_trivially_destructible
is_nothrow_destructible
(C++11)
(C++11)
(C++11)
has_virtual_destructor (C++11)
Relationships and property queries
is_same (C++11)
is_base_of (C++11)
is_convertible (C++11)
alignment_of (C++11)
rank (C++11)
extent (C++11)
Type modifications
remove_cv
remove_const
remove_volatile
(C++11)
(C++11)
(C++11)
add_cv
add_const
add_volatile
(C++11)
(C++11)
(C++11)
make_signed (C++11)
make_unsigned (C++11)
Type transformations
aligned_storage (C++11)
aligned_union (C++11)
decay (C++11)
enable_if (C++11)
conditional (C++11)
common_type (C++11)
underlying_type (C++11)
result_of (C++11)
Type trait constants
integral_constant (C++11)
 

See also 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)
maximum 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)
maximum 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)
maximum 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)

[edit] 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_MIN
SHRT_MIN
INT_MIN
LONG_MIN
LLONG_MIN




(C++11)
minimum value of signed char, short, int, long and long long respectively
(macro constant)
SCHAR_MAX
SHRT_MAX
INT_MAX
LONG_MAX
LLONG_MAX




(C++11)
maximum value of signed char, short, int, long and long long respectively
(macro constant)
UCHAR_MAX
USHRT_MAX
UINT_MAX
ULONG_MAX
ULLONG_MAX




(C++11)
maximum value of unsigned char, unsigned short, unsigned int,
unsigned long and unsigned long long respectively
(macro constant)

[edit] 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_MIN
DBL_MIN
LDBL_MIN
minimum value of float, double and long double respectively
(macro constant)
FLT_MAX
DBL_MAX
LDBL_MAX
maximum value of float, double and long double respectively
(macro constant)
FLT_EPSILON
DBL_EPSILON
LDBL_EPSILON
difference between 1.0 and the next representable value for float, double and long double respectively
(macro constant)
FLT_DIG
DBL_DIG
LDBL_DIG
number of decimal digits that can be represented without losing precision for float, double and long double respectively
(macro constant)
FLT_MANT_DIG
DBL_MANT_DIG
LDBL_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_EXP
DBL_MIN_EXP
LDBL_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_EXP
DBL_MIN_10_EXP
LDBL_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_EXP
DBL_MAX_EXP
LDBL_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_EXP
DBL_MAX_10_EXP
LDBL_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)
specifies in what precision all arithmetic operations are done
(macro constant)