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Is there any use for unique_ptr with array?
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Some people do not have the luxury of using std::vector, even with allocators. Some people need a dynamically sized array, so std::array is out. And some people get their arrays from other code that is known to return an array; and that code isn't going to be rewritten to return a vector or ...
The required anti-forgery form field “__RequestVerificationToken” is not present Error in user Regis
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You have [ValidateAntiForgeryToken] attribute before your action. You also should add @Html.AntiForgeryToken() in your form.
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How can I read input from the console using the Scanner class in Java?
...erminated by any one these: \n, \r (or) \r\n
Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace(\s) and it is recognised by Character.isWhitespace.
« Until the user enters data, the scanning operation may block, waiting for input.
« Use Scanner(BUF...
When to use ' (or quote) in Lisp?
...hash tables.
This is where quote comes in. Say you want to plot resource allocations from a Python application, but rather do the plotting in Lisp. Have your Python app do something like this:
print("'(")
while allocating:
if random.random() > 0.5:
print(f"(allocate {random.randin...
What are all the possible values for HTTP “Content-Type” header?
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/ "multipart" / "text"
/ "video" / x-token
x-token := < The two characters "X-" followed, with no
intervening white space, by any token >
subtype := token
parameter := attribute "=" value
attribute := token
value...
vector::at vs. vector::operator[]
...sure correct checks using at().
As a real-world example, I have code that tokenises C++ into lexical elements, then other code that moves an index over the vector of tokens. Depending on what's encountered, I may wish to increment and check the next element, as in:
if (token.at(i) == Token::Keywo...
Why are preprocessor macros evil and what are the alternatives?
...to wrap a function with macros to pass on file/line information:
#define malloc(x) my_debug_malloc(x, __FILE__, __LINE__)
#define free(x) my_debug_free(x, __FILE__, __LINE__)
Now we can use my_debug_malloc as the regular malloc in the code, but it has extra arguments, so when it comes to the end...
How to keep a .NET console app running?
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It's also possible to block the thread / program based on a cancellation token.
token.WaitHandle.WaitOne();
WaitHandle is signalled when the token is cancelled.
I have seen this technique used by the Microsoft.Azure.WebJobs.JobHost, where the token comes from a cancellation token source of the...
How to initialize a List to a given size (as opposed to capacity)?
...f string[10] as is (backing store of an lists is also an array) or it will allocate a new memory of its own and then copy the contents of string[10]? string[10] will get garbage collected automatically if L selects the later route.
– RBT
Mar 25 '17 at 4:30
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General guidelines to avoid memory leaks in C++ [closed]
...rams? How do I figure out who should free memory that has been dynamically allocated?
29 Answers
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