Push_back
push_back is an operation that appends an element to the end of a sequence container or returns a sequence containing the appended element.
Object-Oriented Software Design in C++
A standard C++ vector operation that appends an element to the container's end.
- How it is used
- Uses push_back() to append appointments while exposing the performance cost of hidden vector operations.
- How deep it goes
- Explains copying, allocation, relocation, and destruction during growth, but does not develop broader vector-performance techniques.
- Examples
- Demonstrates append operations with Date objects and reports constructor and destructor calls through instrumentation.
- What you can do after
- Diagnose unexpected copying, allocation, and destruction when appending objects to a vector.
Read how Object-Oriented Software Design in C++ explains push_back →
Learn C++ by Example
push_back is a C++ sequence-container member function that appends an element to the container.
- How it is used
- Appends calculated or existing objects to the end of sequence containers such as std::vector.
- How deep it goes
- Explains copying, rvalue overloads, moving temporaries, and the contrast with emplace_back; it defers complete value-category details.
- Examples
- Uses Pascal’s triangle rows, triangle.push_back(data), and push_back(get_next_row(triangle.back())) to demonstrate copying and moving.
- What you can do after
- Apply it via std::vector to append existing objects and recognize when an lvalue is copied or a temporary is moved.
Related concepts
- emplace_backalternative to · emplace_back is a C++ sequence-container member function that constructs and appends an element at the container's end.
- embeddingproduces · An embedding is a numerical vector representation of an item that encodes features or relationships useful for computational tasks.
- rvalue referenceuses · An rvalue reference is a C++ reference type, written with &&, that binds to rvalues, including temporary objects, and supports moving resources from them.
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