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Avoid "Syntaxis error" for Concat ## this ## [message #1069453]

Mon, 15 July 2013 19:05

Eclipse User

Hi,

Do you know how disable or create an exception to avoid the static code analysis tool embedded in eclipse mark the concatenation at precompilation?

#define mNiceMacro(this, value) {concat##this## = value;}

void UglyFunction_UsingConcat(void)
{
/*code*/
mNiceMacro(5, 7); /*here we get a syntaxis error,but the compilation is
/* done without errors */
/*more code*/
}

Re: Avoid "Syntaxis error" for Concat ## this ## [message #1069556 is a reply to message #1069453]

Tue, 16 July 2013 01:50

Eclipse User

Hi Ivan,

if you mean 'Codan' as the 'static code analysis tool', I have switched it completely OFF.

Regards
Dirk

Re: Avoid "Syntaxis error" for Concat ## this ## [message #1069883 is a reply to message #1069556]

Tue, 16 July 2013 15:55

Eclipse User

Dirk,

Yes, I use codan as static analysis tool and I turned off. but I still have the false positive "syntaxis error" in fact the icon does not looks like a codan icon, I was thinking the syntaxis error is throw by other plugin.

Re: Avoid "Syntaxis error" for Concat ## this ## [message #1070050 is a reply to message #1069453]

Wed, 17 July 2013 02:41

Eclipse User

Ivan Galicia wrote on Tue, 16 July 2013 01:05

Hi,

Do you know how disable or create an exception to avoid the static code analysis tool embedded in eclipse mark the concatenation at precompilation?

#define mNiceMacro(this, value) {concat##this## = value;}

void UglyFunction_UsingConcat(void)
{
/*code*/
mNiceMacro(5, 7); /*here we get a syntaxis error,but the compilation is
/* done without errors */
/*more code*/
}

The error arises not from the code analysis CODAN but from the indexer. You can disable the indexer for this code part by using

#ifndef __CDT_PARSER__
...
#endif

BTW, this code does not compile on my platform (Linux gcc 4.6). This might be the reason the indexer chokes.

Re: Avoid "Syntaxis error" for Concat ## this ## [message #1083211 is a reply to message #1070050]

Fri, 09 August 2013 12:33

Eclipse User

Add the _CDT_PARSER_ sentence, but I got the same results.
look like the way that we wrote the macro is trigger the syntaxis error.

Re: Avoid "Syntaxis error" for Concat ## this ## [message #1084903 is a reply to message #1083211]

Mon, 12 August 2013 03:41

Eclipse User

Ivan Galicia wrote on Fri, 09 August 2013 18:33

Add the _CDT_PARSER_ sentence, but I got the same results.
look like the way that we wrote the macro is trigger the syntaxis error.

Where did you insert _CDT_PARSER_? You should surround the macro definition (and provide an empty definition for the #else clause)

Re: Avoid "Syntaxis error" for Concat ## this ## [message #1085203 is a reply to message #1084903]

Mon, 12 August 2013 11:37

Eclipse User

Axel,
I did it, same result.

#ifndef __CDT_PARSER__

#define mNiceMacro(this, value) {concat##this## = value;}

#endif

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