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Unformatted text preview: CSc 1254: Lecture # 5 Code Organization, Templates & Exception September 21, 2005 • Code Organization • The C++ Compilation Mode • Compiling Multiple Source Files • Introduction to Templates • Exception 1 Code Organization Well-organized C programs normally use multiple source and header files. They usually consist of libraries that handle various tasks. Each library performs a set of related tasks. A library can be used in a program by including its header file. C intrinsic library files are included between < > while user-defined (personal) library files are included between ” ”. #include <intrinsic_library_name> #include "user-defined_library_name.h" How the files are structured: • header files (.h) a. public function prototypes b. public global variable declarations c. #define preprocessor commands 1 d. public struct and class declarations/typedefs • source files (.cpp) a. private function prototypes b. function definitions for both public and private functions c. global variables d. private struct and class declarations/typedefs 2 Compilation Model The compilation process involves several steps. In the preprocessing phase comments are removed from the source file and special preprocessor directives are interpreted. During the compilation phase the C++ compiler translates source code to assembly code. The source code is received from the prepro- cessor. In the assembly phase object code is created. On a UNIX system you may see files with a .o suffix to indicate object code files. Finally, in the linking phase if a source file references library functions or functions defined in other source files the link editor combines these functions with the main function to create an executable file. External variable references are resolved during this phase also. (See diagram.) 3 Compiling Multiple Source Files When using the GNU g++ compiler, there are several flags that may be used....
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- Fall '08
- Executable, executable file