[string.erasure]

# 27 Strings library [[strings]](./#strings)

## 27.4 String classes [[string.classes]](string.classes#string.erasure)

### 27.4.4 Non-member functions [[string.nonmembers]](string.nonmembers#string.erasure)

#### 27.4.4.5 Erasure [string.erasure]

[🔗](#lib:erase,basic_string)

`template<class charT, class traits, class Allocator, class U = charT>
  constexpr typename basic_string<charT, traits, Allocator>::size_type
    erase(basic_string<charT, traits, Allocator>& c, const U& value);
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/strings.tex#L5168)

*Effects*: Equivalent to:auto it = remove(c.begin(), c.end(), value);auto r = distance(it, c.end());
c.erase(it, c.end());return r;

[🔗](#lib:erase_if,basic_string)

`template<class charT, class traits, class Allocator, class Predicate>
  constexpr typename basic_string<charT, traits, Allocator>::size_type
    erase_if(basic_string<charT, traits, Allocator>& c, Predicate pred);
`

[2](#2)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/strings.tex#L5187)

*Effects*: Equivalent to:auto it = remove_if(c.begin(), c.end(), pred);auto r = distance(it, c.end());
c.erase(it, c.end());return r;