We recommend using Visual Studio 2017

SafeInt Functions


The latest version of this topic can be found at SafeInt Functions.

The SafeInt library provides several functions that you can use without creating an instance of the SafeInt Class. If you want to protect a single mathematical operation from integer overflow, you can use these functions. If you want to protect multiple mathematical operations, you should create SafeInt objects. It is more efficient to create SafeInt objects than to use these functions multiple times.

These functions enable you to compare or perform mathematical operations on two different types of parameters without having to convert them to the same type first.

Each of these functions has two template types: T and U. Each of these types can be a Boolean, character, or integral type. Integral types can be signed or unsigned and any size from 8 bits to 64 bits.

SafeAddAdds two numbers and protects against overflow.
SafeCastCasts one type of parameter to another type.
SafeDivideDivides two numbers and protects against dividing by zero.
SafeEquals, SafeGreaterThan, SafeGreaterThanEquals, SafeLessThan, SafeLessThanEquals, SafeNotEqualsCompares two numbers. These functions enable you to compare two different types of numbers without changing their types.
SafeModulusPerforms the modulus operation on two numbers.
SafeMultiplyMultiplies two numbers together and protects against overflow.
SafeSubtractSubtracts two numbers and protects against overflow.
SafeInt ClassThe SafeInt class.
SafeIntException ClassThe exception class specific to the SafeInt library.