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C++: Difference between revisions
→References
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References are like pointers since they do not copy the object except they cannot be null and they cannot be reassigned.<br> | References are like pointers since they do not copy the object except they cannot be null and they cannot be reassigned.<br> | ||
Note that primitives can also be used with references, in which case changes will propagate to the underlying value.<br> | Note that primitives can also be used with references, in which case changes will propagate to the underlying value.<br> | ||
You can also use them as class attributes, initializing them in the constructor's initializer list. | You can also use them as class attributes, initializing them in the constructor's initializer list.<br> | ||
To store references in a vector, you can use <code>std::reference_wrapper</code> and include the <code>functional</code> header. | |||
===String=== | ===String=== | ||