:relfileprefix: ../../../../
[#boost-urls-grammar-alnum_chars_t-find_if_not]

= xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/grammar.adoc[pass:[grammar]]::xref:boost/urls/grammar/alnum_chars_t.adoc[pass:[alnum_chars_t]]::find_if_not



== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/alnum_chars.hpp#L75[boost/url/grammar/alnum_chars.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
char const*
find_if_not(
    char const* first,
    char const* last) const noexcept;
----