amrex::IParserExecutor< N > Struct Template Reference

Callable wrapper around an integer parser expression with N variables. More...

#include <AMReX_IParser.H>

Public Member Functions
template<int M = N, std::enable_if_t< M==0, int > = 0>
__host__ __device__ long long	operator() () const noexcept
	Evaluate constant expressions (N == 0) and return the integer result.
template<typename... Ts>
__host__ __device__ std::enable_if_t< sizeof...(Ts)==N &&std::conjunction_v< std::is_integral< Ts >... >, long long >	operator() (Ts... var) const noexcept
	Evaluate the expression with N integral arguments.
__host__ __device__ long long	operator() (GpuArray< long long, N > const &var) const noexcept
	Evaluate using an explicit array of integer arguments.
__host__ __device__	operator bool () const
	True when this is a valid executor.

Public Attributes
char *	m_host_executor = nullptr
	Pointer to host bytecode.
char *	m_device_executor = nullptr
	Pointer to device bytecode (if copied).

Detailed Description

template<int N>
struct amrex::IParserExecutor< N >

Callable wrapper around an integer parser expression with N variables.

Instances are returned by IParser::compile() / IParser::compileHost() and expose host/device operator() overloads that evaluate to 64-bit integers.

Member Function Documentation

operator bool()

template<int N>

__host__ __device__ amrex::IParserExecutor< N >::operator bool ( ) const

inlineexplicit

True when this is a valid executor.

operator()() [1/3]

template<int N>

template<int M = N, std::enable_if_t< M==0, int > = 0>

__host__ __device__ long long amrex::IParserExecutor< N >::operator() ( ) const

inlinenoexcept

Evaluate constant expressions (N == 0) and return the integer result.

operator()() [2/3]

template<int N>

__host__ __device__ long long amrex::IParserExecutor< N >::operator() ( GpuArray< long long, N > const &  var ) const

inlinenoexcept

Evaluate using an explicit array of integer arguments.

Parameters

var	Argument array in registration order.

operator()() [3/3]

template<int N>

template<typename... Ts>

__host__ __device__ std::enable_if_t< sizeof...(Ts)==N &&std::conjunction_v< std::is_integral< Ts >... >, long long > amrex::IParserExecutor< N >::operator() ( Ts...  var ) const

inlinenoexcept

Evaluate the expression with N integral arguments.

Parameters

var	Scalar arguments supplied in registration order.

Returns

Result promoted to long long.

Member Data Documentation

m_device_executor

template<int N>

char* amrex::IParserExecutor< N >::m_device_executor = nullptr

Pointer to device bytecode (if copied).

m_host_executor

template<int N>

char* amrex::IParserExecutor< N >::m_host_executor = nullptr

Pointer to host bytecode.

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The documentation for this struct was generated from the following file:

• /home/runner/work/amrex/amrex/Src/Base/Parser/AMReX_IParser.H