boost::urls::param_view::param_view :: Boost Libraries Documentation

# boost::urls::param_view::param_view

Constructor

## Synopsis

Declared in `<boost/url/param.hpp>`

    template<class OptionalString>
    param_view(
        core::string_view key,
        OptionalString const& value) noexcept;

## Description

This constructs a parameter with a key and value. No validation is performed on the strings. The new key and value reference the same corresponding underlying character buffers. Ownership of the buffers is not transferred; the caller is responsible for ensuring that the assigned buffers remain valid until they are no longer referenced.

## Example

    param_view qp( "key", "value" );

## Postconditions

    this->key.data() == key.data() && this->value.data() == value.data() && this->has_value == true

## Complexity

Constant.

## Exception Safety

Throws nothing.

## Template Parameters

Name | Description
--- | ---
OptionalString | An optional string type, such as `core::string_view`, `std::nullptr`, `no_value_t`, or `optional<core::string_view>`.

## Parameters

Name | Description
--- | ---
key | The key to set.
value | The value to set.

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