cpp / beginner
Snippet
Namespaces: Avoiding Name Conflicts
Namespaces organize code into named groups to prevent naming conflicts. The same identifier can exist in different namespaces without collision. Use the scope resolution operator (::) to access namespace members. The std namespace contains standard library components.
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#include <iostream>namespace math {int multiply(int a, int b) {return a * b;}}namespace text {int multiply = 5;}int main() {std::cout << "math::multiply(4, 3) = " << math::multiply(4, 3) << std::endl;std::cout << "text::multiply = " << text::multiply << std::endl;return 0;}
Breakdown
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namespace math { }
Defines a namespace called 'math'
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namespace text { }
Defines a separate namespace called 'text'
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math::multiply(4, 3)
Accesses multiply function from math namespace
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text::multiply
Accesses multiply variable from text namespace