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How to use shared memory with Linux in C
...buffer. Both processes can read and write the shared memory.
#include <string.h>
#include <unistd.h>
int main() {
char parent_message[] = "hello"; // parent process will write this message
char child_message[] = "goodbye"; // child process will then write this one
void* shmem =...
How to convert an address into a Google Maps Link (NOT MAP)
...ss>, so formatting is preserved
It properly encodes the URL
It squashes extra spaces so that the generated URL is shorter and cleaner and human-readable after encoding
It produces valid markup (Mr.Hendershot's solution creates <a><address></address></a> which is invalid be...
Difference between innerText, innerHTML, and childNodes[].value?
...nto an <input type="number">, the returned value
might be an empty string instead.
Sample Script
Here's an example which shows the output for the HTML presented above:
var properties = ['innerHTML', 'innerText', 'textContent', 'value'];
// Writes to textarea#output and console
...
How to create JSON string in C#
...te some XML to send back in an HTTP response. How would you create a JSON string. I assume you would just use a stringbuilder to build the JSON string and them format your response as JSON?
...
How to set a Fragment tag by code?
I haven't found something like setTag(String tagName) method in the Fragment class. The only way to set a Fragment tag that I have found is by doing a FragmentTransaction and passing a tag name as parameter.
...
JPA: How to have one-to-many relation of the same Entity type
... main() method that persists three such entities:
public static void main(String[] args) {
EntityManager em = ... // from EntityManagerFactory, injection, etc.
em.getTransaction().begin();
A parent = new A();
A son = new A();
A daughter = new A();
son.setParent(pa...
Accessing Session Using ASP.NET Web API
...w):
WebApiConfig.cs
public static class WebApiConfig
{
public static string UrlPrefix { get { return "api"; } }
public static string UrlPrefixRelative { get { return "~/api"; } }
public static void Register(HttpConfiguration config)
{
config.Routes.MapHttpRoute(
...
How to bind function arguments without binding this?
...ound to bar, while the context obj specified in the invocation is used and extra arguments are appended after the bound arguments. The return value is simply forwarded.
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Make .gitignore ignore everything except a few files
...rom Git's version
control. I have a project (LaTeX) that generates lots of extra files (.auth,
.dvi, .pdf, logs, etc) as it runs, but I don't want those to be tracked.
...
How do I get textual contents from BLOB in Oracle SQL
... value is longer than 4000 it will throw errors since that's max value for strings in sql. you need to add substr(BLOB_FIELD, 4000, 1). If yo u need longer field support use PL/SQL (up to 32000 I believe)
– Sonic Soul
May 13 '14 at 13:29
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