Remove the last element.

Synopsis

void
pop_back();

Description

This function removes the last element from the container, which must not be empty or else undefined behavior occurs. Iterators and references to the last element, as well as the end iterator, are invalidated.

Preconditions

not empty()

Example

url u = parse_relative_uri( "/path/to/file.txt" );

u.segments().pop_back();

assert( u.encoded_path() == "/path/to" );

Exception Safety

Throws nothing.