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What is a void pointer in C++? [duplicate]
... it is a void pointer
int *pInt = static_cast<int*>(pVoid); // cast from void* to int*
cout << *pInt << endl; // can dereference pInt
Source: link
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What does T&& (double ampersand) mean in C++11?
...function
unique_ptr<int[]> ptr{new int[10]};
// first cast ptr from lvalue to rvalue
unique_ptr<int[]> new_owner = TakeOwnershipAndAlter(\
static_cast<unique_ptr<int[]>&&>(ptr), 10);
cout << "output:\n";
for(auto i = 0; i< 10; ++i) {
cou...
date format yyyy-MM-ddTHH:mm:ssZ
...2015-03-10T15:15:57Z&end=2015-03-15T15:15:57Z
It returns the results from Salesforce without any issues.
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Regular Expressions: Is there an AND operator?
...ESii thanks for your point, you are right and I misundertsood the question from Hugoware, I focused particularly on his first sentence. The right answer is a proper use of the lookahead operator, as AlanMoore wrote. Anyhow I think someone may find my clarification useful, as is has been already upvo...
Java using enum with switch statement
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The part you're missing is converting from the integer to the type-safe enum. Java will not do it automatically. There's a couple of ways you can go about this:
Use a list of static final ints rather than a type-safe enum and switch on the int value you recei...
How to extract a substring using regex
... (i.e. group(1) is correct in the answer). "Capturing groups are indexed from left to right, starting at one. Group zero denotes the entire pattern" - Source: docs.oracle.com/javase/8/docs/api/java/util/regex/…
– Apriori
Apr 18 '17 at 6:48
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Java FileOutputStream Create File if not exists
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FileUtils from apache commons is a pretty good way to achieve this in a single line.
FileOutputStream s = FileUtils.openOutputStream(new File("/home/nikhil/somedir/file.txt"))
This will create parent folders if do not exist and crea...
Regex for password must contain at least eight characters, at least one number and both lower and up
... it. For it to work, though, I had to remove the last clause |[a-zA-Z0-9]* from it.
– i--
Mar 17 '16 at 14:44
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Do I need to heartbeat to keep a TCP connection open?
... firewall), you may need keepalives in order to keep the state table entry from expiring.
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Replace a character at a specific index in a string?
...s that are normally hidden in the current scope (private methods or fields from another class...).
public static void main(String[] args) {
String text = "This is a test";
try {
//String.value is the array of char (char[])
//that contains the text of the String
Field...