C-Compile, link, run

What is compiling: Translating the C source program into 0 and 1 that the computer can recognize;

What compiler to use: Xcode3 using GCC,XCODE4 with LLVM compiler (front end with clang)

How do I compile a program using the Clang compiler?

1. In the terminal, enter: Cc–c file name. C

2. Compile successfully, generate. O Target file

If the code has a syntax problem, the compiler will direct an error. and indicate the number of errors and the exact line number.

As long as there are 1 errors, the program will not compile successfully and will not generate an. o file

Warning messages are just some of the compiler's recommendations and do not affect compilation through

Link:

What the link does: combine the. o file and the C-language function library to generate the executable file

done by the linker, the Clang compiler already contains the link directive:

1. In the terminal, enter: CC file name. O

2. Link succeeds, generates a.out executable file

Run:

Directly double-click Open a.out File

Use the./a.out directive in the terminal

Compile together, Link: cc xxx.c

Run the process:

Summary clang directive

1. Compilation: Cc–c xxx.c

2. Link: cc XXX.O

3. Compile, Link: cc xxx.c

4. Run the executable file:./a.out

C-Compile, link, run