(CSP31A) C++ Programming I

User-defined header files

#include "filename"

Static linking

- Linked at compile time - Linked at load time - Copy all the library routines into the executable image

Dynamic linking

- Linked at run time - Perform code sharing

What is true about the preprocessor?

- Pre-processor directives begin with the hash symbol - Includes any files into the source code before compiling - Tells the compiler to preprocess the source code before compiling

The linker

A program in a system which helps to link an object's modules of program into a single object file

What is a source code file?

A text file in a specific syntax

Macros

Always proceeded by #define

Relocatable machine code

Can be loaded and ran at any point

What are the standard libraries?

Common functions, whose definitions have been written, and are ready to be used in any program

Header file

Contains definitions of pre-defined functions like cout

Loader/linker

Converts the relocated code into absolute code

Conditional compilation

Directives which help compile a specific portion of the program or to skip compilation compilation of some specific part of the program based on some conditions

Pre-processor directives

Macros, file inclusion, conditional compilation, and other directives

Assembly language

Neither in binary nor high level form

Assembler

Not universal, since we have one for each platform

Pre-processors

Programs that process our source code before compilation

High level language

Refers to a programming languages such as C++

Pre-processor

Removes all the directives and performs file inclusion, macro-processing, and performs conditional compilation

What are the types of linking?

Static/dynamic

File inclusion

Tells the compiler to include a file in the source code

Absolute machine code

The executable file

Other directives

The material doesn't discuss these