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Positioning a div near bottom side of another div
...g it look like your nice illustration */
#outer { width: 300px; height: 200px; background: #f2f2cc; border: 1px solid #c0c0c0; }
#inner { width: 50px; height: 40px; background: #ff0080; border: 1px solid #800000; }
/* positioning the boxes correctly */
#outer { position: relative; }
...
One-line list comprehension: if-else variants
...sion]
>>> map(lambda x: [x*100, x][x % 2 != 0], range(1,10))
[1, 200, 3, 400, 5, 600, 7, 800, 9]
>>>
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In CMake, how can I test if the compiler is Clang?
... cross-platform CMake build scripts , and we support building with Visual C++ and GCC .
5 Answers
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Which is the best Linux C/C++ debugger (or front-end to gdb) to help teaching programming? [closed]
I teach a sort of "lite" C++ programming course to novices ("lite" meaning no pointers, no classes, just plain old C, plus references and STL string and vectors). Students have no previous experience in programming, so I believe that using an interactive debugger would help them understand program f...
How do I list the symbols in a .so file
... it simply like this:
nm -gD yourLib.so
If you want to see symbols of a C++ library, add the "-C" option which demangle the symbols (it's far more readable demangled).
nm -gDC yourLib.so
If your .so file is in elf format, you have two options:
Either objdump (-C is also useful for demangling ...
Error: free(): invalid next size (fast):
What is this strange error I'm getting? I'm compiling C++ using g++ on Ubuntu 10.10. It pops up randomly when I run the executable (maybe 2 times in 8 hours, with 10 compiles an hour). However, if I make clean and recompile it goes away most of the time.
...
Windows batch file file download from a URL
...at you're trying to do: BITS. It has been included in Windows since XP and 2000 SP3.
Run:
bitsadmin.exe /transfer "JobName" http://download.url/here.exe C:\destination\here.exe
The job name is simply the display name for the download job - set it to something that describes what you're doing.
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Can anyone explain what JSONP is, in layman terms? [duplicate]
...echange = function () {
if (xhr.readyState == 4 && xhr.status == 200) {
// success
};
};
xhr.open("GET", "somewhere.php", true);
xhr.send();
JSONP Request:
var tag = document.createElement("script");
tag.src = 'somewhere_else.php?callback=foo';
document.getElementsByTagName("hea...
std::string to float or double
... "0.6";
double temp = ::atof(num.c_str());
Does it for me, it is a valid C++ syntax to convert a string to a double.
You can do it with the stringstream or boost::lexical_cast but those come with a performance penalty.
Ahaha you have a Qt project ...
QString winOpacity("0.6");
double temp = w...
Compiling C++11 with g++
I'm trying to update my C++ compiler to C++11.
I have searched a bit and I have come to the conclusion that I have to use the flag -std=c++0x or -std=gnu++0x , but I don't know many things about flags. Can anyone help me? (I'm using Ubuntu 12.04.)
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