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Home » Language IDEs » C / C++ IDE (CDT) » mutiple definitions error in a C project(when i was running multiple files in a project it showed me multiple main definition error)
mutiple definitions error in a C project [message #1773692] Tue, 03 October 2017 05:50 Go to next message
salmon raj is currently offline salmon rajFriend
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Registered: October 2017
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Re: mutiple definitions error in a C project [message #1773889 is a reply to message #1773692] Fri, 06 October 2017 07:51 Go to previous message
David VavraFriend
Messages: 783
Registered: October 2012
Senior Member
You can only have one function called "main" per executable.
In fact, ALL function names should be unique.
It seems you have defined main twice in projects basic and basic2.
If you intended multiple executables (say hello in project basic and prime_numbers in project basic) they should be in separate projects.

It's possible to have more than one executable per project but you would have to write your own makefile.
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