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How do I find where an exception was thrown in C++?
... is a brief discussion on uncaught exceptions in Bruce Eckel's Thinking in C++, 2nd Ed that may be helpful as well.
Since terminate() calls abort() by default (which will cause a SIGABRT signal by default), you may be able to set a SIGABRT handler and then print a stack backtrace from within the si...
SQL SELECT speed int vs varchar
...B=140usec/record C=180usec/record
Indexed by id, select by id: B=about 200us C=about 200us
* inserts to the table already containing 4M records
so it looks like for this setup, as long as your indexes fit in RAM, bigint vs 16-char text makes no difference in speed.
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Why aren't pointers initialized with NULL by default?
...Or under other conditions the variable is potentially never used. A lot of C++ developers would scream foul under both conditions at the cost of that extra instruction.
It's not just about time. But also space. There are a lot of environments where both resources are at a premium and the developers...
Pythonic way to create a long multi-line string
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200
If you don't want a multiline string but just have a long single line string, you can use pare...
Why is ArrayDeque better than LinkedList
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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
I am transitioning from Java to C++ and have some questions about the long data type. In Java, to hold an integer greater than 2 32 , you would simply write long x; . However, in C++, it seems that long is both a data type and a modifier.
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How can I detect the touch event of an UIImageView?
...e.
UIImageView *single_view = [[UIImageView alloc]initWithFrame:CGRectMake(200, 200, 100, 100)];
single_view.image = img;
single_view.layer.zPosition = 4;
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTapGestureCaptured:)];
[single_vi...
LPCSTR, LPCTSTR and LPTSTR
...bit they are all pointers.
This is a great codeproject article describing C++ strings (see 2/3 the way down for a chart comparing the different types)
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Difference between 'struct' and 'typedef struct' in C++?
In C++ , is there any difference between:
8 Answers
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static const vs #define
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properly scoped / identifier clash issues handled nicely, particularly in C++11 enum classes where the enumerations for enum class X are disambiguated by the scope X::
strongly typed, but to a big-enough signed-or-unsigned int size over which you have no control in C++03 (though you can specify a b...