[#boost-urls-url_base-c_str]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/url_base.adoc[url_base]::c_str
:relfileprefix: ../../../
:mrdocs:


Return the url as a null‐terminated string

== Synopsis


Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/url_base.hpp#L130[boost/url/url_base.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
char const*
c_str() const noexcept;
----

== Description


This function returns a pointer to a null        terminated string representing the url,        which may contain percent escapes.


=== Example

[,cpp]
----
assert( std::strlen( url( "http://www.example.com" ).c_str() ) == 22 );
----

=== Complexity

Constant.


=== Exception Safety

Throws nothing.





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