| title |
<cctype> | Microsoft Docs |
| ms.custom |
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| ms.date |
11/04/2016 |
| ms.technology |
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| ms.topic |
reference |
| f1_keywords |
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| dev_langs |
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| helpviewer_keywords |
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| ms.assetid |
3fd18bfd-c414-4def-bac1-c362e1fe8b71 |
| author |
corob-msft |
| ms.author |
corob |
| ms.workload |
|
Includes the Standard C library header <ctype.h> and adds the associated names to the std namespace.
Remarks
Including this header ensures that the names declared using external linkage in the Standard C library header are declared in the std namespace.
Header Files Reference
C++ Standard Library Overview
Thread Safety in the C++ Standard Library