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Templates - C++ [1/1]

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Templates - C++
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Templates - C++
Date: 2006-Dec-12
Templates - C++
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Templates - C++
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Templates - C++
Author: Alex Plumpton

Templates enable to define and create generic classes or function. The template can be considered as a kind of macro. When an object of a specific type is defined for actual use, template definition for that class is substituted with the required datatype. There are two types of templates. They are function template and class template.

Example
Write a function that returns square value of a number. The type of the number can be int, long, float.


int sqrt(int n)
{
return (n* n);
}
long sqrt(long n)
{
return (n*n);
}
float sqrt(float n)
{
return(n*n);
}

The figure illustrates the concept behind the template functions.

Templates - C++
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