std::linear_congruential_engine<UIntType,a,c,m>::linear_congruential_engine

 

C++

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Feature test macros (C++20)

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Technical specifications

Symbols index

External libraries

 

Numerics library

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countl_zero (C++20)

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endian (C++20)

 

Pseudo-random number generation

Uniform random bit generators

uniform_random_bit_generator (C++20)

Engines and engine adaptors

linear_congruential_engine (C++11)

mersenne_twister_engine (C++11)

subtract_with_carry_engine (C++11)

discard_block_engine (C++11)

independent_bits_engine (C++11)

shuffle_order_engine (C++11)

Non-deterministic generator

random_device (C++11)

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uniform_int_distribution (C++11)

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generate_canonical (C++11)

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bernoulli_distribution (C++11)

binomial_distribution (C++11)

negative_binomial_distribution (C++11)

geometric_distribution (C++11)

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poisson_distribution (C++11)

exponential_distribution (C++11)

gamma_distribution (C++11)

weibull_distribution (C++11)

extreme_value_distribution (C++11)

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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)

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piecewise_linear_distribution (C++11)

Seed Sequences

seed_seq (C++11)

C library

rand

srand

RAND_MAX

 

std::linear_congruential_engine

Member functions

linear_congruential_engine::linear_congruential_engine (C++11)

linear_congruential_engine::seed (C++11)

Generation

linear_congruential_engine::operator() (C++11)

linear_congruential_engine::discard (C++11)

Characteristics

linear_congruential_engine::min (C++11)

linear_congruential_engine::max (C++11)

Non-member functions

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

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

 

linear_congruential_engine() : linear_congruential_engine(default_seed) {}	(1)	(since C++11)
explicit linear_congruential_engine( result_type value );	(2)	(since C++11)
template< class Sseq > explicit linear_congruential_engine( Sseq& s );	(3)	(since C++11)
linear_congruential_engine( const linear_congruential_engine& );	(4)	(since C++11) (implicitly declared)

Constructs the pseudo-random number engine.

1) Default constructor. Seeds the engine with default_seed.

The overload (3) only participates in overload resolution if Sseq qualifies as a SeedSequence. In particular, it is excluded from the set of candidate functions if Sseq is convertible to result_type.

Parameters

value	-	seed value to use in the initialization of the internal state
s	-	seed sequence to use in the initialization of the internal state

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

See also

seed (C++11)

sets the current state of the engine (public member function)