DelegatingHasher Struct Reference

Detailed Description

An adapter that forwards the HashAlgorithm::operator(data, length) function concept into a runtime-provided std::function of the same signature.

This is useful for passing a concrete HashAlgorithm implementation through into non-templated code, such as with an Impl or Cell pattern.

#include <drake/common/hash.h>

Public Types
using	Func = std::function< void(const void *, size_t)>
	A std::function whose signature matches HashAlgorithm::operator(). More...

Public Member Functions
	DelegatingHasher (Func func)
	Create a delegating hasher that calls the given func. More...
void	operator() (const void *data, size_t length) noexcept
	Append [data, data + length) bytes into the wrapped algorithm. More...

Member Typedef Documentation

Func

using Func = std::function<void(const void*, size_t)>

A std::function whose signature matches HashAlgorithm::operator().

Constructor & Destructor Documentation

DelegatingHasher()

DelegatingHasher ( Func  func )

explicit

Create a delegating hasher that calls the given func.

Member Function Documentation

operator()()

void operator() ( const void *  data, size_t  length  )

noexcept

Append [data, data + length) bytes into the wrapped algorithm.

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

• drake/common/hash.h