std::piecewise_constant_distribution<RealType>::piecewise_constant_distribution

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Metaprogramming library (C++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Concurrency support library (C++11)

Execution support library (C++26)

Technical specifications

Symbols index

External libraries

 

Numerics library

Common mathematical functions
Mathematical special functions (C++17)
Mathematical constants (C++20)
Basic linear algebra algorithms (C++26)
Floating-point environment (C++11)
Complex numbers
Numeric array (valarray)
Pseudo-random number generation
Factor operations
gcd (C++17)	lcm (C++17)
Interpolations
midpoint (C++20)	lerp (C++20)
Saturation arithmetic
add_sat (C++26) sub_sat (C++26) saturate_cast (C++26)	mul_sat (C++26) div_sat (C++26)
Generic numeric operations
iota (C++11) ranges::iota (C++23) accumulate inner_product adjacent_difference partial_sum	reduce (C++17) transform_reduce (C++17) inclusive_scan (C++17) exclusive_scan (C++17) transform_inclusive_scan (C++17) transform_exclusive_scan (C++17)
Bit operations
has_single_bit (C++20)     bit_cast (C++20) bit_ceil (C++20) bit_floor (C++20) bit_width (C++20) rotl (C++20) rotr (C++20)	popcount (C++20) countl_zero (C++20) countl_one (C++20) countr_zero (C++20) countr_one (C++20) byteswap (C++23) endian (C++20)

 

Pseudo-random number generation

Uniform random bit generators   uniform_random_bit_generator (C++20) Random number engines linear_congruential_engine (C++11) mersenne_twister_engine (C++11) subtract_with_carry_engine (C++11) philox_engine (C++26) Random number engine adaptors discard_block_engine (C++11) independent_bits_engine (C++11) shuffle_order_engine (C++11) Predefined random number generators Non-deterministic random numbers random_device (C++11) Utilities generate_canonical (C++11) seed_seq (C++11) Random number algorithms ranges::generate_random (C++26) C random library rand    srand    RAND_MAX

Random number distributions Uniform distributions uniform_int_distribution (C++11) uniform_real_distribution (C++11) generate_canonical (C++11) Bernoulli distributions bernoulli_distribution (C++11) binomial_distribution (C++11) negative_binomial_distribution (C++11) geometric_distribution (C++11) Poisson distributions poisson_distribution (C++11) exponential_distribution (C++11) gamma_distribution (C++11) weibull_distribution (C++11) extreme_value_distribution (C++11) Normal distributions normal_distribution (C++11) lognormal_distribution (C++11) chi_squared_distribution (C++11) cauchy_distribution (C++11) fisher_f_distribution (C++11) student_t_distribution (C++11) Sampling distributions discrete_distribution (C++11) piecewise_constant_distribution (C++11) piecewise_linear_distribution (C++11)

 

std::piecewise_constant_distribution

Member functions

piecewise_constant_distribution::piecewise_constant_distribution

piecewise_constant_distribution::reset

Generation

piecewise_constant_distribution::operator()

Characteristics

piecewise_constant_distribution::intervalspiecewise_constant_distribution::densities

piecewise_constant_distribution::param

piecewise_constant_distribution::min

piecewise_constant_distribution::max

Non-member functions

operator==operator!= (C++11)(C++11)(until C++20)

operator<<operator>> (C++11)(C++11)

 

piecewise_constant_distribution();	(1)	(since C++11)
template< class InputIt1, class InputIt2 > piecewise_constant_distribution( InputIt1 first_i, InputIt1 last_i,                                  InputIt2 first_w );	(2)	(since C++11)
template< class UnaryOperation > piecewise_constant_distribution( std::initializer_list<RealType> ilist_i,                                  UnaryOperation fw );	(3)	(since C++11)
template< class UnaryOperation > piecewise_constant_distribution( std::size_t nw,                                  RealType xmin, RealType xmax,                                  UnaryOperation fw );	(4)	(since C++11)
explicit piecewise_constant_distribution( const param_type& param );	(5)	(since C++11)

Constructs new piecewise constant distribution object.

1) Constructs a distribution object with n = 1, ρ0 = 1, b0 = 0, and b1 = 1.

2) Constructs a distribution object from iterators over the interval sequence [first_i, last_i) and a matching weight sequence starting at first_w.

3) Constructs a distribution object where the intervals are taken from the initializer list ilist_i and the weights generated by the function fw.

4) Constructs a distribution object with the nw intervals distributed uniformly over [xmin, xmax] and the weights generated by the function fw.

5) Constructs a distribution object initialized with the parameters param.

Parameters

first_i	-	iterator initialized to the start of the interval sequence
last_i	-	iterator initialized to one-past-the-end of the interval sequence
first_w	-	iterator initialized to the start of the density (weight) sequence
ilist_i	-	initializer_list yielding the interval sequence
fw	-	double(double) function yielding the densities
nw	-	the number of densities
xmin	-	the lower bound of the interval sequence
xmax	-	the upper bound of the interval sequence
param	-	the distribution parameter set