.TH "std::linear_congruential_engine< _UIntType, __a, __c, __m >" 3cxx "Sun Feb 7 2021" "libstdc++" \" -*- nroff -*-
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.SH NAME
std::linear_congruential_engine< _UIntType, __a, __c, __m > \- A model of a linear congruential random number generator\&.  

.SH SYNOPSIS
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.PP
.SS "Public Types"

.in +1c
.ti -1c
.RI "typedef _UIntType \fBresult_type\fP"
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.in -1c
.SS "Public Member Functions"

.in +1c
.ti -1c
.RI "\fBlinear_congruential_engine\fP ()"
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.RI "Constructs a linear_congruential_engine random number generator engine with seed 1\&. "
.ti -1c
.RI "template<typename _Sseq , typename  = _If_seed_seq<_Sseq>> \fBlinear_congruential_engine\fP (_Sseq &__q)"
.br
.RI "Constructs a linear_congruential_engine random number generator engine seeded from the seed sequence \fC__q\fP\&. "
.ti -1c
.RI "\fBlinear_congruential_engine\fP (\fBresult_type\fP __s)"
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.RI "Constructs a linear_congruential_engine random number generator engine with seed \fC__s\fP\&. The default seed value is 1\&. "
.ti -1c
.RI "void \fBdiscard\fP (unsigned long long __z)"
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.RI "Discard a sequence of random numbers\&. "
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.RI "\fBresult_type\fP \fBoperator()\fP ()"
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.RI "Gets the next random number in the sequence\&. "
.ti -1c
.RI "template<typename _Sseq > _If_seed_seq< _Sseq > \fBseed\fP (_Sseq &__q)"
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.RI "Reseeds the linear_congruential_engine random number generator engine sequence using values from the seed sequence \fC__q\fP\&. "
.ti -1c
.RI "template<typename _Sseq > auto \fBseed\fP (_Sseq &__q) \-> _If_seed_seq< _Sseq >"
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.ti -1c
.RI "void \fBseed\fP (\fBresult_type\fP __s=default_seed)"
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.RI "Reseeds the linear_congruential_engine random number generator engine sequence to the seed \fC__s\fP\&. "
.in -1c
.SS "Static Public Member Functions"

.in +1c
.ti -1c
.RI "static constexpr \fBresult_type\fP \fBmax\fP ()"
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.RI "Gets the largest possible value in the output range\&. "
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.RI "static constexpr \fBresult_type\fP \fBmin\fP ()"
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.RI "Gets the smallest possible value in the output range\&. "
.in -1c
.SS "Static Public Attributes"

.in +1c
.ti -1c
.RI "static constexpr \fBresult_type\fP \fBdefault_seed\fP"
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.ti -1c
.RI "static constexpr \fBresult_type\fP \fBincrement\fP"
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.ti -1c
.RI "static constexpr \fBresult_type\fP \fBmodulus\fP"
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.ti -1c
.RI "static constexpr \fBresult_type\fP \fBmultiplier\fP"
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.in -1c
.SS "Friends"

.in +1c
.ti -1c
.RI "template<typename _UIntType1 , _UIntType1 __a1, _UIntType1 __c1, _UIntType1 __m1, typename _CharT , typename _Traits > \fBstd::basic_ostream\fP< _CharT, _Traits > & \fBoperator<<\fP (\fBstd::basic_ostream\fP< _CharT, _Traits > &__os, const \fBstd::linear_congruential_engine\fP< _UIntType1, __a1, __c1, __m1 > &__lcr)"
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.RI "Writes the textual representation of the state x(i) of x to \fC__os\fP\&. "
.ti -1c
.RI "bool \fBoperator==\fP (const \fBlinear_congruential_engine\fP &__lhs, const \fBlinear_congruential_engine\fP &__rhs)"
.br
.RI "Compares two linear congruential random number generator objects of the same type for equality\&. "
.ti -1c
.RI "template<typename _UIntType1 , _UIntType1 __a1, _UIntType1 __c1, _UIntType1 __m1, typename _CharT , typename _Traits > \fBstd::basic_istream\fP< _CharT, _Traits > & \fBoperator>>\fP (\fBstd::basic_istream\fP< _CharT, _Traits > &__is, \fBstd::linear_congruential_engine\fP< _UIntType1, __a1, __c1, __m1 > &__lcr)"
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.RI "Sets the state of the engine by reading its textual representation from \fC__is\fP\&. "
.in -1c
.SH "Detailed Description"
.PP 

.SS "template<typename _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
.br
class std::linear_congruential_engine< _UIntType, __a, __c, __m >"
A model of a linear congruential random number generator\&. 

A random number generator that produces pseudorandom numbers via linear function: \[ x_{i+1}\leftarrow(ax_{i} + c) \bmod m \]
.PP
The template parameter \fC_UIntType\fP must be an unsigned integral type large enough to store values up to (__m-1)\&. If the template parameter \fC__m\fP is 0, the modulus \fC__m\fP used is std::numeric_limits<_UIntType>::max() plus 1\&. Otherwise, the template parameters \fC__a\fP and \fC__c\fP must be less than \fC__m\fP\&.
.PP
The size of the state is $1$\&. 
.PP
Definition at line 244 of file random\&.h\&.
.SH "Member Function Documentation"
.PP 
.SS "template<typename _UIntType , _UIntType __a, _UIntType __c, _UIntType __m> template<typename _Sseq > auto \fBstd::linear_congruential_engine\fP< _UIntType, __a, __c, __m >::seed (_Sseq & __q) \-> _If_seed_seq<_Sseq>
      "
Seeds the LCR engine with a value generated by \fC__q\fP\&. 
.PP
Definition at line 132 of file bits/random\&.tcc\&.
.PP
References std::__lg()\&.

.SH "Author"
.PP 
Generated automatically by Doxygen for libstdc++ from the source code\&.