| title | SafeAdd | Microsoft Docs | |||||||||||||
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| ms.date | 11/04/2016 | |||||||||||||
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| ms.assetid | 3f82b91d-59fe-4ee1-873b-d056182fa8be | |||||||||||||
| caps.latest.revision | 5 | |||||||||||||
| author | ghogen | |||||||||||||
| ms.author | ghogen | |||||||||||||
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Adds two numbers in a way that protects against overflow.
template<typename T, typename U>
inline bool SafeAdd (
T t,
U u,
T& result
) throw ();
[in] t
The first number to add. This must be of type T.
[in] u
The second number to add. This must be of type U.
[out] result
The parameter where SafeAdd stores the result.
true if no error occurs; false if an error occurs.
This method is part of SafeInt Library and is designed for a single addition operation without creating an instance of the SafeInt Class.
Note
This method should only be used when a single mathematical operation must be protected. If there are multiple operations, you should use the SafeInt class instead of calling the individual stand-alone functions.
For more information about the template types T and U, see SafeInt Functions.
Header: safeint.h
Namespace: Microsoft::Utilities
SafeInt Functions
SafeInt Library
SafeInt Class
SafeSubtract