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Hi every one, I'm not sure where should I ask my question,
I want a link or eBook which explain clips programming but with an expert system example step by step. not form the beginning. I have search the net but I couldn't find what I'm looking for.
I would be so thanks full if some one could help.
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What is "clips programming"?
Use the best guess
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I'm so sorry. what I mean is programming in Clips (C Language Integrated Production System) which is a Tools for expert system.
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Thx,but I'm looking for sth which explain it by a simple expert system step by step.
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Hi all,
I am capturing desktop by using BitBlt.
Without CAPTUREBLT, I can capture desktop without capturing layered windows in Windows XP.
In Windows Vista or Windows 7, there is a problem with this, but when I stop the Desktop Windows Manager service, this can be solved.
But in Windows 8, I cannot stop this service, so I must find another solution to capture the desktop screen without layered windows.
Can anybody give me an idea?
Thank you very much.
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Hello,
We are running a boost unit test using command line (cmd). The command is:
C:\> /c "D:\MyExecutable.exe" --run_test=testcase1,testcase2,testcase3, --report_format=xml --report_level=detailed --log_format=xml --log_level=all >test_log.xml 2>test_report.xml
The output format is in XML.
I would like to have the call stack for the failed test cases. Is it possible to write the call stack trace in test_report.xml or test_log.xml ?
Is there any macro or Boost API can help me achieve this?
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Hello,
I have observed that in native unit test framework(c++), there is an option to group test cases using attributes which are reflected as traits in the Test Explorer window in MS VS2012.
Following is a an example of the same:
BEGIN_TEST_METHOD_ATTRIBUTE(TestMethod3)
TEST_OWNER(L"SuperMan")
TEST_PRIORITY(2)
TEST_METHOD_ATTRIBUTE(L"Category",L"Slow")
END_TEST_METHOD_ATTRIBUTE()
TEST_METHOD(TestMethod3)
{
Assert::AreEqual(2,6);
}
How can this be achieved via Boost Unit Test Library? Are there macros to achieve the same?
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I have a problem regarding file streams in Qt.
Basically, I read a file using this code:
int LoadSettings(){
QFile* settingsFile = new QFile(storageFileLocation);
if(!settingsFile->open(QIODevice::ReadOnly | QIODevice::Text)){
return SettingsStorage::ErrorReadingFile;
}
QTextStream settingsFileStream(settingsFile);
while(!settingsFileStream.atEnd()){
QString fileLine;
fileLine = settingsFileStream.readLine();
QStringList splittedSettings = fileLine.split(SETTING_NAME_VALUE_SEPARATOR);
int addingStatus = AddSettingIfNotExist(splittedSettings[SETTINGSARRAY_SETTINGNAMEPOS], splittedSettings[SETTINGSARRAY_SETTINGVALUEPOS]);
}
delete(settingsFile);
return SettingsStorage::Ok;
}
AFAIK I have to delete dynamically allocated memory myself. I dynamically allocate the QFile* "settingsFile" and want to delete it as soon as I do not need it anymore. So why do I get a memory access violation message?
I also know that Qt automatically disposes all allocated objects as soon as they derive from the QObject base class, but I want to write to the file later, therefore I have to clean up the allocated memory by myself.
Any help is greatly appreciated.
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Are you sure that the problem is settingsFile? If QObjects really dispose themselves, maybe they assume to be allocated on the heap and give a problem than being allocated on the stack. Have you tried commtenting parts of the code out, especially the loop and the QTextStream?
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Freak30 wrote: Are you sure that the problem is settingsFile?
Yes. And every other dynamically allocated object. I can allocate memory for an object, but not delete it.
Freak30 wrote: Have you tried commtenting parts of the code out, especially the loop and the QTextStream?
Commented out the delete-part and everything was fine. Except that there was a memory leakage.
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Why you are using "delete(settingsFile);" instead of "delete settingsFile;". What does it mean?
I think you should also close settings file before deleting it.
And if the settingsfile->open() fails you will get another memmory leaks, because you are leaving function without deleting settingsfile.
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Newbie00 wrote: What does it mean?
The same this as sizeof(var) and return(result). Parenthesis are optional.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Show me a community that obeys the Ten Commandments and I'll show you a less crowded prison system." - Anonymous
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Certainly looks like the entire code block is suspect to me.
You have something that looks like a file, which is scoped by new/delete. Then that gets used by something else, that looks like a file reader, and the scope of that is the method. Thus it continues to have a reference to the 'file' until the method exits even though you have already deleted it. Either both should be on the heap or neither should be.
And the first has a close method. Which, hopefully the dtor takes care of by certainly I never assume that.
You make a memory allocation and then do an error check and exit - without cleaning up.
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I need to store a structure in a database..but the structure contains another structure..can anybody help me plz
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Are you trying to store all this data in one database field or store its contents in separate fields? Please provide more details.
Use the best guess
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Given that you have two structures, you need something like a foreign key to resolve them when loading them from database.
Given there is structure #1:
struct numberOne{
int childStructId,
int someValue
};
and struct #2:
struct numberTwo{
int id, int anotherValue
};
You need now a database which has two tables, one to store struct #1 and another one for struct #2:
The table for struct #1 has two fields, for the childStructId and onther one for someValue.
The table for struct #2 has also two fields, one for its unique Id and another one for anotherValue.
Afterwards you can load struct #1 from database, and according to the childStructId you can load struct #2 from the database.
I was just guessing what you want, please come back to me if you have further questions.
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sir,
first of all thank u so much for ur reply..
what i need is for example there is a structure
struct example
{
int id;
string name;
struct example2
{
int value;
}
};
now i need to store this structure in a database...as i'm new to database i
dnt have any idea of it...so plz help me...also i'm using sqlite3 database
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Member 7894601 wrote: first of all thank u so much for ur reply..
You're welcome.
Member 7894601 wrote: now i need to store this structure in a database...as i'm new to database i
dnt have any idea of it...so plz help me...also i'm using sqlite3 database
You can find an intro of how to connect to a SQLite database at the SQLite website[^].
The people of the Database forum[^] will help you to find out which tables you will need to create a reliable database.
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You may create two tables where one contains a reference (foreign key) to the other:
TABLE example2
INT id unique ID, usually auto increment
INT value
TABLE example
INT id
VARCHAR name
INT id2 foreign key to access table example2
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but initially how to create a database with two tables using sqlite3
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Member 7894601 wrote: can anybody help me plz
The first step is that you need to learn
- How to create a database
- How to create tables
- How to store and retrieve data from a table
None of that has anything to do with your structures, so don't try to do that until you understand the above.
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Sir,
i am nw able to create a database...nw my requirement is how to store the details of files and folders in the database..
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sir,
nw i am able to create a sqlite3 database...but nw i face a problem of storing a variable which is wchar_t...which datatype should i use...plz help me
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