CPC Programmi ng L anguage

 Designed by Dennis Ritchie (1972)  C Programming used for developing UNIX OS  L3Lecture 3 : C Introduction C features Dennis Ritchie  Structured ppgrogrammin g,g , modular pgprogrammin g  Highly portable  Efficient (fast)  C has the features of high level language and low level language

1 2 Lecture notes : courtesy of Woo Kyun and Chang Byung-Mo silimple C(hll)C program (hello.c) CilC compiler

 compiler?  Programmer can use high level language such as C  CPU knows machine language (assembly language)

C program MhiMachine Compiler language int main… 010101…

 output: C compiler  Commercial compiler: Microsoft Visual C/C++ (ver. 6.0) Hello, World !  Free compiler: gcc

3 4 Visual Stu dio 6. 0 PDltProgram Development

 Microsoft Visual C++ 6.0  Project window 1. Creating Project  Editing window 2.  Message window Adding Files 3. Editing Program 4. Compile&Build 5. Execution&Debugging

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CtiPjt(1/5)Creating a Project (1/5) CtiPjt(2/5)Creating a Project (2/5)

1. File  New 1. File  New Projects tab 2. LtiLocation Win32 Console Application Folder selection 2. Location 3. Project Name 3. Project Name 4. OK 4. OK 5. Finish & OK 5. Finish & OK

7 8 CtiPjt(3/5)Creating a Project (3/5) CtiPjt(4/5)Creating a Project (4/5)

1. File  New 1. File  New 2. LtiLocation Win32 Consol e AAppli lica tion 3. Project Name 2. Location Hello 3. Project Name 4. OK 4. OK 5. Finish & OK 5. Finish & OK

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CtiPjt(5/5)Creating a Project (5/5) Adding Fil es (1/3)

 Hello project is created 1. File  New Files ta b C++ Source File 2. filename 3. OK

11 12 Adding Fil es (2/3) Adding Fil es (3/3)

1. File  New  Source file hello.c is added to Hello project 2. filename Add to ppjroject hello.c 3. OK

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Visual Studio 2 008 : File Edit Creating Command-Line Program

15 Visual Studio 2 008 Visual Studio 2 008 Creating Command-Line Program Creating Command-Line Program

Visual Studio 2 008 Visual Studio 2 008 Creating Command-Line Program Creating Command-Line Program Cil&BildCompile & Build CilCompile-time error

 compile  Compile hello.c  Grammar error. Object file can not be created  Double click error message line

 Object fil e (.o bj) itdis created  Build  Build Hello.exe

 Link : link object files and create a executable file (.exe)

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PiPProgramming Process gcc /++/ g++

Source files (.c)  Free C/C++ compiler developed by GNU

preprocessor

temporary program texts

compiler

Object files library files linker

Executable file (.exe)

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