Insert segments

Synopsis

Declared in header <boost/url/segments_encoded_ref.hpp>

iterator
insert(
    iterator before,
    std::initializer_list<pct_string_view> init);

Description

This function inserts the segments in an initializer list before the specified position. Reserved characters in the list are automatically escaped. Escapes in the list are preserved.

All iterators that are equal to before or come after are invalidated.

Note
 None of the character buffers referenced by the list may overlap the character buffer of the underlying url, or else the behavior is undefined.

Example

url u( "/file.txt" );

u.encoded_segments().insert( u.encoded_segments().begin(), { "path", "to" } );

Complexity

Linear in init.size() + this->url().encoded_resource().size().

Exception Safety

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

Exceptions

Name Thrown on

system_error

The list contains an invalid percent-encoding.

Return Value

An iterator to the first element inserted, or before if init.size() == 0.

Parameters

Name Description

before

An iterator before which the list is inserted. This may be equal to end().

init

The list of segments to insert.