CPC Programmi ng Language 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 5 6 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 Win 32 Conso le AAppli lica tion 3. Project Name 2. Location Hello 3. Project Name 4. OK 4. OK 5. Finish & OK 5. Finish & OK 9 10 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 13 14 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) 21 22 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) 23 24.