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Tip of the Day
Home » Tip Bank » C++
Language: C++
Expertise: Beginner
May 19, 2004



Application Security Testing: An Integral Part of DevOps

Prefer Templates to Macros

Because macros do not behave as function calls but merely as text substitutions, they might exhibit strange behaviors during complex calls. For instance:
#define mul (t) t*t*t
mul(3+3) gives 24 though the expected result is 216.
Templates, on the other hand, follow the semantics of function definition and function call. They also enforce type checking unlike macros:

template <class type>
type mul_t (type t)
return t*t*t;
mul_t(3+3) gives expected result of 216.
Saurabh Ramya
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