[locale.collate.members]

# 28 Text processing library [[text]](./#text)

## 28.3 Localization library [[localization]](localization#locale.collate.members)

### 28.3.4 Standard locale categories [[locale.categories]](locale.categories#locale.collate.members)

#### 28.3.4.5 The collate category [[category.collate]](category.collate#locale.collate.members)

#### 28.3.4.5.1 Class template collate [[locale.collate]](locale.collate#members)

#### 28.3.4.5.1.2 Members [locale.collate.members]

[ð](#lib:collate,compare)

`int compare(const charT* low1, const charT* high1,
            const charT* low2, const charT* high2) const;
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L3406)

*Returns*: do_compare(low1, high1, low2, high2)[.](#1.sentence-1)

[ð](#lib:collate,transform)

`string_type transform(const charT* low, const charT* high) const;
`

[2](#2)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L3417)

*Returns*: do_transform(low, high)[.](#2.sentence-1)

[ð](#lib:collate,hash)

`long hash(const charT* low, const charT* high) const;
`

[3](#3)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L3428)

*Returns*: do_hash(low, high)[.](#3.sentence-1)
