[#BOOST_URL_COW_STRINGS]
= BOOST_URL_COW_STRINGS
:mrdocs:

Define this to make the library tolerate libstdc++ copy‐on‐write strings.

== Synopsis

Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/detail/config.hpp#L227[boost/url/detail/config.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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#define BOOST_URL_COW_STRINGS

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== Description

It is detected automatically for older libstdc++ ABIs; define it yourself to force the behavior on.


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