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C++ convert hex string to signed integer
... << std::hex << "fffefffe";
ss >> x;
the following example produces -65538 as its result:
#include <sstream>
#include <iostream>
int main() {
unsigned int x;
std::stringstream ss;
ss << std::hex << "fffefffe";
ss >> x;
// out...
Why do I get a segmentation fault when writing to a “char *s” initialized with a string literal, but
...ence between these initializations?
char a[] = "string literal";
char *p = "string literal";
My program crashes if I try to assign a new value to p[i].
A: A string literal (the formal term
for a double-quoted string in C
source) can be used in two slightly
different ways:
A...
How do I find which program is using port 80 in Windows? [duplicate]
How do I find which program is using port 80 in Windows?
6 Answers
6
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“User interaction is not allowed” trying to sign an OSX app using codesign
...
I too have been fighting this. Nothing helped until I tried the suggestion on http://devnet.jetbrains.com/thread/311971. Thanks ashish agrawal!
Login your build user via the GUI and open Keychain Access. Select your signing private key, right-click, choose Get Inf...
jQuery using append with effects
How can I use .append() with effects like show('slow')
10 Answers
10
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Is std::unique_ptr required to know the full definition of T?
...
Adopted from here.
Most templates in the C++ standard library require that they be instantiated with complete types. However shared_ptr and unique_ptr are partial exceptions. Some, but not all of their members can be instantiat...
Exposing a port on a live Docker container
...container that acts like a full-on virtual machine. I know I can use the EXPOSE instruction inside a Dockerfile to expose a port, and I can use the -p flag with docker run to assign ports, but once a container is actually running, is there a command to open/map additional ports live?
...
What is the difference between id and class in CSS, and when should I use them? [duplicate]
Here I gave an id to the div element and it's applying the relevant CSS for it.
15 Answers
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Get the IP address of the machine
This Question is almost the same as the previously asked Get the IP Address of local computer -Question. However I need to find the IP address(es) of a Linux Machine .
...
How to create nonexistent subdirectories recursively using Bash?
I am creating a quick backup script that will dump some databases into a nice/neat directory structure and I realized that I need to test to make sure that the directories exist before I create them. The code I have works, but it seems that there is a better way to do it. Any suggestions?
...