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Is there any overhead to declaring a variable within a loop? (C++)
...t could indeed be cheaper. Also, as we expand this discussion from ints to C++ types, one could generalize 'var=4' as some other operation than 'assign variable from a value of the same type'.
– greggo
Mar 5 '14 at 20:15
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Understanding Apache's access log
.../ HTTP/1.0")
%>s is the status code sent from the server to the client (200, 404 etc.)
%b is the size of the response to the client (in bytes)
Referer is the Referer header of the HTTP request (containing the URL of the page from which this request was initiated) if any is present, and "-" otherw...
C++ convert hex string to signed integer
I want to convert a hex string to a 32 bit signed integer in C++.
9 Answers
9
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Why are const parameters not allowed in C#?
It looks strange especially for C++ developers. In C++ we used to mark a parameter as const in order to be sure that its state will not be changed in the method. There are also other C++ specific reasons, like passing const ref in order to pass by ref and be sure that state will not be changed. ...
What do single quotes do in C++ when used on multiple characters?
...ses as
0x74 -> 't'
0x65 -> 'e'
0x73 -> 's'
0x74 -> 't'
Edit:
C++ standard, §2.14.3/1 - Character literals
(...) An ordinary character literal that contains more than
one c-char is a multicharacter literal . A multicharacter literal has type int and implementation-defined
value.
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Why is 'this' a pointer and not a reference?
I was reading the answers to this question C++ pros and cons and got this doubt while reading the comments.
2 Answers
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How to get the number of characters in a std::string?
How should I get the number of characters in a string in C++?
12 Answers
12
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Efficient way to return a std::vector in c++
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In C++11, this is the preferred way:
std::vector<X> f();
That is, return by value.
With C++11, std::vector has move-semantics, which means the local vector declared in your function will be moved on return and in some...
jQuery using append with effects
...e it blank for no transition (shows up immediately). use string 'fast' for 200ms or 'slow' for 600ms. or type any number like $("element").show(747) (= 747ms) to define own speed. see the docs and look for animation / duration.
– honk31
Jul 9 '14 at 8:59
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LLVM C++ IDE for Windows
Is there some C/C++ IDE for Windows, which is integrated with the LLVM compiler (and Clang C/C++ analyzer), just like modern Xcode do.
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