[#boost-urls-grammar-string_view_base-starts_with-06]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/grammar.adoc[grammar]::xref:boost/urls/grammar/string_view_base.adoc[string_view_base]::starts_with
:relfileprefix: ../../../../
:mrdocs:


Return true if a matching prefix exists

== Synopsis


Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/string_view_base.hpp#L411[boost/url/grammar/string_view_base.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
bool
starts_with(core::string_view x) const noexcept;
----

== Description


See `core::string_view::starts_with`





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