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How do I get Windows to go as fast as Linux for compiling C++?
...ss to Windows source code, it is rarely taken advantage of). Look at this selection of Unix-related performance papers: http://www.eecs.harvard.edu/margo/papers/ or look up the history of papers by Osterhaus, Henry Spencer, or others. Heck, one of the biggest (and most enjoyable to watch) debates i...
How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
...
How can you tell from the command line? If you are running 32-bit or 64-bit? Just curious.
– Xonatron
Feb 2 '12 at 20:33
1...
How do I execute a command and get the output of the command within C++ using POSIX?
...} /* switch (pid = fork())*/
}
You also might want to play around with select() and non-blocking reads.
fd_set readfds;
struct timeval timeout;
timeout.tv_sec = 0; /* Seconds */
timeout.tv_usec = 1000; /* Microseconds */
FD_ZERO(&readfds);
FD_SET(childToParent[READ_FD], &...
How to change an application icon programmatically in Android?
...ication's icon from the program so next time they would see the previously selected icon in the launcher.
10 Answers
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Get last n lines of a file, similar to tail
...] # blocks of size BLOCK_SIZE, in reverse order starting
# from the end of the file
while lines_to_go > 0 and block_end_byte > 0:
if (block_end_byte - BLOCK_SIZE > 0):
# read the last block we haven't yet read
f.seek(block_number*BLOCK_SIZ...
How to open every file in a folder?
...have a python script parse.py, which in the script open a file, say file1, and then do something maybe print out the total number of characters.
...
How do I use CSS in Django?
...
Just a quick note on those Django docs - make sure you select the documents for the version of Django you're using. Things appear to have changed a lot between versions with regard to static files.
– Sam Starling
Nov 3 '10 at 11:09
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Simulating tremor (from e.g. Parkinson's Disease) with the mouse on a webpage?
...ontained in app.js, in the canvasLoop(e) method.
The only thing I changed from the original demo was after the lines
x += movementX * 2;
y += movementY * 2;
I added two lines to represent random movement:
x += Math.floor(Math.random()*3 - 1);
y += Math.floor(Math.random()*3 - 1);
There are st...
How many GCC optimization levels are there?
...ted there were 7 options. GCC has since added -Og to bring the total to 8
From the man page:
-O (Same as -O1)
-O0 (do no optimization, the default if no optimization level is specified)
-O1 (optimize minimally)
-O2 (optimize more)
-O3 (optimize even more)
-Ofast (optimize very ag...
QLabel: set color of text and background
...nd-color :"+colcode+" ; color : blue; }");
getColor() method returns the selected color.
You can change label color using stylesheet
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