[extern.types]

# 16 Library introduction [[library]](./#library)

## 16.4 Library-wide requirements [[requirements]](requirements#extern.types)

### 16.4.5 Constraints on programs [[constraints]](constraints#extern.types)

#### 16.4.5.3 Reserved names [[reserved.names]](reserved.names#extern.types)

#### 16.4.5.3.5 Types [extern.types]

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/lib-intro.tex#L3362)

For each type T from the C standard library,
the types​::​T andstd​::​T are reserved to the implementation and, when defined,​::​T shall be identical tostd​::​T[.](#1.sentence-1)
