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Why are exclamation marks used in Ruby methods?
...oo # prints modified foo
This will output:
a string
In the standard libraries, there are a lot of places you'll see pairs of similarly named methods, one with the ! and one without. The ones without are called "safe methods", and they return a copy of the original with changes applied...
Using scanf() in C++ programs is faster than using cin?
... 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 << parity...
Django: Redirect to previous page after login
...ere on SO.
The user should be able to browse the site as an anonymous user and there will be a login link on every page. When clicking on the login link the user will be taken to the login form. After a successful login the user should be taken back to the page from where he clicked the login link i...
Unable to start debugging because the object invoked has disconnected from its clients
... the problem.
Some from the answer:
Check which files were changed (why and how) after update from a source control engine
Review the list of extensions and plugins. Try to disable all or some of them
Close Visual Studio and kill all the development processes: devenv, mspdbsrv, vcpkgsrv, msbuild,...
Is there a decorator to simply cache function return values?
... @Jonathan It works, but wrongly. If I pass a hashable, mutable argument, and change the value of the object after the first call of the function, the second call will return the changed, not the original, object. That is almost certainly not what the user wants. For it to work for mutable argume...
Connecting to remote URL which requires authentication using Java
...
How do you handle a bad authentication event? [For example, if the user supplies username and password authentication credentials that don't match anything]?
– SK9
Aug 14 '11 at 6:06
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How to convert string into float in JavaScript?
I am trying to parse two values from a datagrid. The fields are numeric, and when they have a comma (ex. 554,20), I can't get the numbers after the comma. I've tried parseInt and parseFloat . How can I do this?
...
Can't import my own modules in Python
I'm having a hard time understanding how module importing works in Python (I've never done it in any other language before either).
...
Constructors in Go
I have a struct and I would like it to be initialised with some sensible default values.
11 Answers
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Undefined reference to pthread_create in Linux
...h answers to this question so far are incorrect.
For Linux the correct command is:
gcc -pthread -o term term.c
In general, libraries should follow sources and objects on command line, and -lpthread is not an "option", it's a library specification. On a system with only libpthread.a installed,
g...