std::uniform_int_distribution<IntType>::uniform_int_distribution

 

C++

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Feature test macros (C++20)

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Symbols index

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gcd (C++17)	lcm (C++17)
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add_sat (C++26) sub_sat (C++26) saturate_cast (C++26)	mul_sat (C++26) div_sat (C++26)
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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)
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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::uniform_int_distribution

Member functions

uniform_int_distribution::uniform_int_distribution

uniform_int_distribution::reset

Generation

uniform_int_distribution::operator()

Characteristics

uniform_int_distribution::auniform_int_distribution::b

uniform_int_distribution::param

uniform_int_distribution::min

uniform_int_distribution::max

Non-member functions

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

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

 

uniform_int_distribution() : uniform_int_distribution(0) { }	(1)	(since C++11)
explicit uniform_int_distribution( IntType a,                                    IntType b = std::numeric_limits<IntType>::max() );	(2)	(since C++11)
explicit uniform_int_distribution( const param_type& params );	(3)	(since C++11)

Constructs new distribution object.

2) Uses a and b as the distribution parameters.

3) Uses params as the distribution parameters.

The behavior is undefined if a > b.

Parameters

a	-	the a distribution parameter (minimum value)
b	-	the b distribution parameter (maximum value)
params	-	the distribution parameter set

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR	Applied to	Behavior as published	Correct behavior
P0935R0	C++11	default constructor was explicit	made implicit