NBSTSA PSI CST > QUESTIONS & ANSWERS > Templates, BST Questions & Answers (All)

Templates, BST Questions & Answers

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What happens when declaring a variable or file more than once (i.e. redefining), and why - ANSCompiler error Including external classes in a file: syntax, where to include, and purpose - ANS-#include ... "<filename>.h" So the compiler is aware of the public interface for that class to be able to use it Include in <filename>.cpp, other classes that need its interface, and/or main.cpp Preprocessor directives (in order) for defining a class: syntax, purpose, and issues if not included - ANS- #ifndef CLASSNAME_ - if not already defined (in compiler?), then... #define CLASSNAME_ - define this classname by starting to read the file and compiling it code... #endif - stop reading and compiling this file CONTINUES.... [Show More]

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