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Home » Language IDEs » C / C++ IDE (CDT) » warning: multi-character character constant(warning: multi-character character constant)
warning: multi-character character constant [message #872222] Tue, 15 May 2012 17:43 Go to next message
Ramkumar Sivaraman is currently offline Ramkumar SivaramanFriend
Messages: 3
Registered: May 2012
Junior Member
I am getting this warning,
warning: multi-character character constant

I know why I am getting this error, since I am comparing an integer to a two letter string constant in single quotes,

#define CMD_ID 'ID'
int iCommand;

case CMD_ID: // warning: multi-character character constant

But I cannot modify the code to prevent as that leads to many changes. Rather I want to suppress the warning. How can I do it in eclipse IDE or inside the code? My program is in C in Linux.
Re: warning: multi-character character constant [message #872524 is a reply to message #872222] Wed, 16 May 2012 09:14 Go to previous message
Harry Houdini is currently offline Harry HoudiniFriend
Messages: 142
Registered: February 2010
Senior Member
You can't do this in C.

The switch instruction can compare only integers. A single character can be converted in an integer, but not more.
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