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+[string.find]
+
+# 27 Strings library [[strings]](./#strings)
+
+## 27.4 String classes [[string.classes]](string.classes#string.find)
+
+### 27.4.3 Class template basic_string [[basic.string]](basic.string#string.find)
+
+#### 27.4.3.8 String operations [[string.ops]](string.ops#string.find)
+
+#### 27.4.3.8.2 Searching [string.find]
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/strings.tex#L4360)
+
+Let *F* be one offind, rfind, find_first_of, find_last_of,find_first_not_of, and find_last_not_of[.](#1.sentence-1)
+
+- [(1.1)](#1.1)
+
+Each member function of the formconstexpr size_type *F*(const basic_string& str, size_type pos) const noexcept; has effects equivalent to:return *F*(basic_string_view<charT, traits>(str), pos);
+
+- [(1.2)](#1.2)
+
+Each member function of the formconstexpr size_type *F*(const charT* s, size_type pos) const; has effects equivalent to:return *F*(basic_string_view<charT, traits>(s), pos);
+
+- [(1.3)](#1.3)
+
+Each member function of the formconstexpr size_type *F*(const charT* s, size_type pos, size_type n) const; has effects equivalent to:return *F*(basic_string_view<charT, traits>(s, n), pos);
+
+- [(1.4)](#1.4)
+
+Each member function of the formconstexpr size_type *F*(charT c, size_type pos) const noexcept; has effects equivalent to:return *F*(basic_string_view<charT, traits>(addressof(c), 1), pos);
+
+[ð](#lib:find,basic_string_)
+
+`template<class T>
+  constexpr size_type find(const T& t, size_type pos = 0) const noexcept(see below);
+template<class T>
+  constexpr size_type rfind(const T& t, size_type pos = npos) const noexcept(see below);
+template<class T>
+  constexpr size_type find_first_of(const T& t, size_type pos = 0) const noexcept(see below);
+template<class T>
+  constexpr size_type find_last_of(const T& t, size_type pos = npos) const noexcept(see below);
+template<class T>
+  constexpr size_type find_first_not_of(const T& t, size_type pos = 0) const noexcept(see below);
+template<class T>
+  constexpr size_type find_last_not_of(const T& t, size_type pos = npos) const noexcept(see below);
+`
+
+[2](#2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/strings.tex#L4429)
+
+*Constraints*: 
+
+- [(2.1)](#2.1)
+
+is_convertible_v<const T&, basic_string_view<charT, traits>> istrue and
+
+- [(2.2)](#2.2)
+
+is_convertible_v<const T&, const charT*> isfalse[.](#2.sentence-1)
+
+[3](#3)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/strings.tex#L4440)
+
+*Effects*: Let *G* be the name of the function[.](#3.sentence-1)
+
+Equivalent to:basic_string_view<charT, traits> s = *this, sv = t;return s.*G*(sv, pos);
+
+[4](#4)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/strings.tex#L4449)
+
+*Remarks*: The exception specification is equivalent tois_nothrow_convertible_v<const T&, basic_string_view<charT, traits>>[.](#4.sentence-1)