Qt Creator with ecpg
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Hi.
I would like to use Qt Creator with ecpg, which is an embedded SQL preprocessor for C programs. It converts C programs with embedded SQL statements to normal C code by replacing the SQL invocations with special function calls.
However clang also preprocesses the code and comes with warnings of the type Unknown type name for every sql thing I use.
Can I get rid of this without disabling clang?
How should I do this? I have added the following lines to my .pro-file, which also seems a bit off.ecpgTarget.target = cfile ecpgTarget.commands = ecpg ../DatabaseBrowser/Database QMAKE_EXTRA_TARGETS += ecpgTarget PRE_TARGETDEPS = cfile@Jakob-Clausen said in Qt Creator with ecpg:
Unknown type name for every sql thing I use.
I have not any knowledge of
ecpg, but are you really supposed to write it like this?!
Doesn'tecpgneed to run before you put that code in yourcppfile?!
As far as I understand, you need to pass some special.pcgfile toecpgand it outputs a C code file. So writing these SQL commands in thec / cppfile directly might not work?! -
@Jakob-Clausen said in Qt Creator with ecpg:
Unknown type name for every sql thing I use.
I have not any knowledge of
ecpg, but are you really supposed to write it like this?!
Doesn'tecpgneed to run before you put that code in yourcppfile?!
As far as I understand, you need to pass some special.pcgfile toecpgand it outputs a C code file. So writing these SQL commands in thec / cppfile directly might not work?!@Pl45m4 That is correct.
The code that I have shown is from the .pcg file, and then ecpg preprocesses the code and generates a .c file, which can be compiled normally. The .pcg file is a c-file with some special ecpg-sql commands that are replaced by ecpg.
But I would still like to use clang on the .pcg file, and then I get these warnings . -
@Pl45m4 That is correct.
The code that I have shown is from the .pcg file, and then ecpg preprocesses the code and generates a .c file, which can be compiled normally. The .pcg file is a c-file with some special ecpg-sql commands that are replaced by ecpg.
But I would still like to use clang on the .pcg file, and then I get these warnings .@Jakob-Clausen said in Qt Creator with ecpg:
But I would still like to use clang on the .pcg file, and then I get these warnings .
How should this work when there are special ecpg commands which are no c/c++ constructs in there?
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@Pl45m4 That is correct.
The code that I have shown is from the .pcg file, and then ecpg preprocesses the code and generates a .c file, which can be compiled normally. The .pcg file is a c-file with some special ecpg-sql commands that are replaced by ecpg.
But I would still like to use clang on the .pcg file, and then I get these warnings .@Jakob-Clausen
If you put something like#if 0 EXEC ... #endifaround those lines, does that allow them to get through without upsetting clang/the IDE? Technically you're only allowed to put invalid C++ code even inside
#ifblocks, but sometimes tools just ignore it when false.If that works, you would need to have a symbol or expression you can test there which is false in editor but true while your SQL preprocessor is running. I'm sure you can find one --- it probably defines something itself which you could use.
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@Jakob-Clausen said in Qt Creator with ecpg:
But I would still like to use clang on the .pcg file, and then I get these warnings .
How should this work when there are special ecpg commands which are no c/c++ constructs in there?
@Christian-Ehrlicher It is ecpg commands mixed with ordinary c-code. So I would like to suppress that particular warning for that particular file.
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@Christian-Ehrlicher It is ecpg commands mixed with ordinary c-code. So I would like to suppress that particular warning for that particular file.
@Jakob-Clausen
He & we know this. That doesn't make it possible for a C++ parser to parse the file correctly. And as you can see your warnings are pretty generic, you want to suppress "Unknown type" or "Missing ';'"? -
@Jakob-Clausen
He & we know this. That doesn't make it possible for a C++ parser to parse the file correctly. And as you can see your warnings are pretty generic, you want to suppress "Unknown type" or "Missing ';'"? -
@JonB I see your point. Could I disable clang for .pgc-files while still have some syntax highlighting? And then keep it as it is with .cpp files?
@Jakob-Clausen That I don't know. But did you give a try to my earlier
#if...suggestion? -
@Jakob-Clausen That I don't know. But did you give a try to my earlier
#if...suggestion? -
J Jakob Clausen has marked this topic as solved on
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@JonB I did. And it did work. But I get no syntax highligthing. Maybe thats as good as it gets. So thank you for the input. I think I'll go with that.
@Jakob-Clausen said in Qt Creator with ecpg:
But I get no syntax highligthing
No syntax highlighting on what? On the
EXEC SQL ...lines? That is the intention, else you will get the error! Qt Creator/clang is not going to "syntax highlight" those lines because they are not parseable C++! Not sure what else you would expect? I trust you do not mean that the rest of the C++ code, outside of the#if 0blocks, lose their C++ highlighting? -
@Jakob-Clausen said in Qt Creator with ecpg:
But I get no syntax highligthing
No syntax highlighting on what? On the
EXEC SQL ...lines? That is the intention, else you will get the error! Qt Creator/clang is not going to "syntax highlight" those lines because they are not parseable C++! Not sure what else you would expect? I trust you do not mean that the rest of the C++ code, outside of the#if 0blocks, lose their C++ highlighting?@JonB No. You are right. Thank you.
