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How to remove unused C/C++ symbols with GCC and ld?
...executable size and -s removes the symbol table and relocation information from the executable.
Sometimes - if small size is desired - playing around with different optimization flags may - or may not - have significance. For example toggling -ffast-math and/or -fomit-frame-pointer may at times sav...
Is it possible to add dynamically named properties to JavaScript object?
... @Qantas: Let's say it doesn't answer it directly. But going from data["PropertyD"] to data[function_to_get_property_name()] seems trivial.
– Georg Schölly
Feb 24 '14 at 10:17
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How do I get the full url of the page I am on in C#
I need to be able to get at the full URL of the page I am on from a user control. Is it just a matter of concatenating a bunch of Request variables together? If so which ones? Or is there a more simpiler way?
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Using scanf() in C++ programs is faster than using cin?
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Here's a quick test of a simple case: a program to read a list of numbers 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 <<...
How to run multiple shells on Emacs
I am using Emacs 23.3.1 on windows 7. I know that I can run shell from emacs using M-x shell. I would like to have multiple shell windows in the same time, but typing M-x shell a second time just opens me the same shell window.
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Using wget to recursively fetch a directory with arbitrary files in it
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Here's the complete wget command that worked for me to download files from a server's directory (ignoring robots.txt):
wget -e robots=off --cut-dirs=3 --user-agent=Mozilla/5.0 --reject="index.html*" --no-parent --recursive --relative --level=1 --no-directories http://www.example.com/archive/ex...
git rebase: “error: cannot stat 'file': Permission denied”
...s error on Windows and what it seems to mean is that something blocked git from modifying a file at the moment when it tried to a apply a patch.
Windows tends to give processes exclusive access to files when it shouldn't really be necessary, in the past virus checkers have been one source of suspic...
What is the difference between require() and library()?
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The other reason I use require is that it keeps me from referring to packages as libraries, a practice that drives the R-cognoscenti up the wall. The library is the directory location where the packages sit.
– IRTFM
Apr 8 '11 at 15:53
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Isn't “package private” member access synonymous with the default (no-modifier) access?
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From Java Language Spec
6.6.5 Example: Default-Access Fields, Methods, and Constructors If
none of the access modifiers public,
protected, or private are specified, a
class member or constructor is
accessible t...
How can i use iptables on centos 7? [closed]
...o there is no unintentional disruption of existing network connections" -- from the official firewalld docs
– yicone
Jul 20 '16 at 14:23
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