Function template for_each_field
boost::pfr::for_each_field
Synopsis
template<typename T, typename F> void for_each_field(T && value, F && func);
Description
Calls func for each field of a value.
Example:
struct my_struct { int i, short s; };
int sum = 0;
boost::pfr::for_each_field(my_struct{20, 22}, [&sum](const auto& field) { sum += field; });
assert(sum == 42);
Parameters: |
func
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must have one of the following signatures:
any_return_type func(U&& field) // field of value is perfect forwarded to function any_return_type func(U&& field, std::size_t i) any_return_type func(U&& value, I i) // Here I is an std::integral_constant<size_t, field_index>
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value
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To each field of this variable will be the func applied. |
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C++ Libraries
