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Using scanf() in C++ programs is faster than using cin?
...mbers from standard input and XOR all of the numbers.
iostream version:
#include <iostream>
int main(int argc, char **argv) {
int parity = 0;
int x;
while (std::cin >> x)
parity ^= x;
std::cout << parity << std::endl;
return 0;
}
scanf version:
#include...
Converting Secret Key into a String and Vice Versa
...Spec(decodedKey, 0, decodedKey.length, "AES");
For Java 7 and before (including Android):
NOTE I: you can skip the Base64 encoding/decoding part and just store the byte[] in SQLite. That said, performing Base64 encoding/decoding is not an expensive operation and you can store strings in almos...
RegEx to exclude a specific string constant [duplicate]
... This will work if you're looking for a string that does not include ABC. But is that the goal? Or is the goal to match every character except ABC?
– Steve Wortham
Sep 8 '09 at 18:37
...
What is the default height of UITableViewCell?
...MikeyWard: You probably figured this out already, but the 1px separator is included in the height. It actually covers the bottom-most content of the cell.
– Ben S
Jan 6 '11 at 20:10
...
How do I find all files containing specific text on Linux?
...just give the file name of matching files.
Along with these, --exclude, --include, --exclude-dir flags could be used for efficient searching:
This will only search through those files which have .c or .h extensions:
grep --include=\*.{c,h} -rnw '/path/to/somewhere/' -e "pattern"
This will exclud...
What's the meaning of exception code “EXC_I386_GPFLT”?
...cOSX10.9.sdk
$ find usr -name \*.h -exec fgrep -l EXC_I386_GPFLT {} \;
usr/include/mach/i386/exception.h
^C
$ more usr/include/mach/i386/exception.h
....
#define EXC_I386_GPFLT 13 /* general protection fault */
OK, so it's a general protection fault (as its name suggests anyway)....
An example of how to use getopts in bash
...
Active
Oldest
Votes
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How to cherry-pick multiple commits
...Also, this will not cherry-pick A, but rather everything after A up to and including B.
– J. B. Rainsberger
Nov 25 '12 at 2:01
463
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How can I beautify JSON programmatically? [duplicate]
...ing solution:
The JSON.stringify method supported by many modern browsers (including IE8) can output a beautified JSON string:
JSON.stringify(jsObj, null, "\t"); // stringify with tabs inserted at each level
JSON.stringify(jsObj, null, 4); // stringify with 4 spaces at each level
Demo: http://js...
port forwarding in windows
...
nginx is useful for forwarding HTTP on many platforms including Windows. It's easy to setup and extend with more advanced configuration. A basic configuration could look something like this:
events {}
http {
server {
listen 192.168.1.111:4422;
location /...