Two main() in different source files under same project

Question

Hey guys can we use two or more main() in different C source files under same project in eclipse? What am I actually trying is to write a server and a client source file under same project with main() in each of it. I am getting an error main() redeclaration. is there any way to do this? If yes please tell me how to run that successfully in eclipse CDT Kepler. Regards,

Answer 1

You could also simulate having two main functions in the same project by having main call either mainClient or mainServer (your two main functions renamed) depending on a condition of your choice.

Answer 2

Yes, you just have ton include each one selectively when linking your two programs.

A build system (Makefile, IDE…) helps.

Example

If you have these source files:

Client only:

• main-client.c
• source1-client.c

Server only:

• main-server.c
• source1-server.c

Common sources:

• source1-common.c
• source2-common.c
• source3-common.c

Then a simple (stupid) Makefile is:

all: client server

client:
    gcc -o client main-client.c source1-client.c source1-common.c source2-common.c source3-common.c

server:
    gcc -o server main-server.c source1-server.c source1-common.c source2-common.c source3-common.c

Answer 3

Hey guys we can actually do it by following what Simon and Brandin suggested. Also see this example if anyone still have doubts. Thankyou! #define my main() my() { printf("hello frnz"); } So we can have as many mains as we wish. Vola