[SOLVED] Convert #define value to QString?

Asperamanca

I have the following define in a central .pri file:

@DEFINES += "TCL_VERSION=0.75"@

In my program, I would like to output this version, and therefore need to convert the value '0.75' into a QString.

No obvious way to do that occurred to me. QString(TCL_VERSION) does not compile, and QString("TCL_VERSION") will obviously not do what I want.

Ideas?

lgeyer

You either modify your .pri file and wrap the value correctly with quotes
@
DEFINES += TCL_VERSION="\"0.75\""

QString(TCL_VERSION);
@
or you use the preprocessor to do this for you
@
#define QUOTE(string) _QUOTE(string)
#define _QUOTE(string) #string

QString(QUOTE(TCL_VERSION));
@

Asperamanca

Thanks!

On an unrelated note: Why do I always get
"Error Message: Unable to receive your submission at this time " whenever I try to just write "Thanks"?

fluca1978

[quote author="Asperamanca" date="1329723547"]Thanks!

On an unrelated note: Why do I always get
"Error Message: Unable to receive your submission at this time " whenever I try to just write "Thanks"?[/quote]

Network problem?

Asperamanca

Nope. It consistently happens when I try to write short answers.

lgeyer

I think there is a minimum amount of characters which need to be entered into a post to be accepted (to prevent short bump and spam posts). The error message is just misleading.

goetz

Additionally, you cannot post a comment that has the very same wording as a comment posted previously. If someone else had posted "Nope. It consistently happens when I try to write short answers." before, you wouldn't have been able to send your comment too.

bogdan_bdg

@lgeyer

You [...] modify your .pri file and wrap the value correctly with quotes
@
DEFINES += TCL_VERSION=""0.75""

QString(TCL_VERSION);
@

Is this still valid? I get unknown type name '<my define string>' when I follow the advice on Qt 5.15.x

bogdan_bdg

The preprocessor "stringification" works though.

SGaist

Hi,

It would be simpler to use a generated header. The double quote escaping won't work on all platforms.