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declaration. n. 1. (Rhetoric) an explicit or emphatic statement. 2. (Rhetoric) a formal statement or announcement; proclamation. 3. (Rhetoric) the act of declaring.
Input/output (C++) In the C++ programming language, input/output library refers to a family of class templates and supporting functions in the C++ Standard Library that implement stream-based input/output capabilities. It is an object-oriented alternative to C's FILE-based streams from the C standard library. Contents.