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(this == null) in C#!
... I agree although I do remember faintly something about how in C++ an object didn't have reference within it's constructor and I'm wondering if the (this == null) scenario is used in those cases to check whether a call to a method was made from the object's constructor before exposing a ...
How to read and write excel file
...tRow(r);
if(row != null) {
for(int c = 0; c < cols; c++) {
cell = row.getCell((short)c);
if(cell != null) {
// Your code here
}
}
}
}
} catch(Exception ioe) {
ioe.printStackTrace();...
What is “assert” in JavaScript?
... @RonBurk: Language designers decided "what assertions are meant for". In C++ [an assertion] is designed to capture programming errors, not user or run-time errors, since it is generally disabled after a program exits its debugging phase. PHP says As a rule of thumb your code should always be able ...
Where can I locate themes for VS2012
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Unfortunately VSIP does not patch C++ project icons.
– untitled8468927
Apr 18 '13 at 10:17
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show 2...
What does the Visual Studio “Any CPU” target mean?
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so, how do I produce assembly which will JIT to x64 in C++?
– galets
Feb 5 '09 at 16:48
51
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Function in JavaScript that can be called only once
... only once, in each time after the first it won't be executed. I know from C++ and Java about static variables that can do the work but I would like to know if there is a more elegant way to do this?
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Incomplete type is not allowed: stringstream
...
Not the answer you're looking for? Browse other questions tagged c++ types stringstream or ask your own question.
What does the ??!??! operator do in C?
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if (ErrorHasOccured())
HandleError();
Guru of the Week (deals with C++ but relevant here), where I picked this up.
Possible origin of trigraphs or as @DwB points out in the comments it's more likely due to EBCDIC being difficult (again). This discussion on the IBM developerworks board seems...
How do I sort a vector of pairs based on the second element of the pair?
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EDIT: using c++14, the best solution is very easy to write thanks to lambdas that can now have parameters of type auto. This is my current favorite solution
std::sort(v.begin(), v.end(), [](auto &left, auto &right) {
return ...
How to “return an object” in C++?
...d value because it's inefficient
Prove it.
Look up RVO and NRVO, and in C++0x move-semantics. In most cases in C++03, an out parameter is just a good way to make your code ugly, and in C++0x you'd actually be hurting yourself by using an out parameter.
Just write clean code, return by value. If ...