boost::urls::params_encoded_ref::append :: Boost Libraries Documentation

# boost::urls::params_encoded_ref::append

Append params

## Synopsis

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

    iterator
    append(std::initializer_list<param_pct_view> init);

## Description

This function appends the params in an initializer‐list to the view.

The `end()` iterator is invalidated.

## Example

    url u;

    u.encoded_params().append({ {"first", "John"}, {"last", "Doe"} });

## Complexity

Linear in `this‐>url().encoded_query().size()`.

## Exception Safety

Strong guarantee. Calls to allocate may throw. Exceptions thrown on invalid input.

## Exceptions

Name | Thrown on
`system_error` | `init` contains an invalid percent‐encoding.

## Return Value

An iterator to the first new element.

## Parameters

Name | Description
--- | ---
init | The list of params to append.

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