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How to change a string into uppercase
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s = 'sdsd'
print (s.upper())
upper = raw_input('type in something lowercase.')
lower = raw_input('type in the same thing caps lock.')
print upper.upper()
print lower.lower()
share
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error: cannot dynamic_cast ‘b’ (of type ‘class Base*’) to type ‘c...
...{
T _val;
public:
Derived() {}
Derived(T val): _val(val) {}
T raw() {return _val;}
};
int main()
{
Base * b = new Derived<int>(1);
Derived<int> * d = dynamic_cast<Derived<int>* >(b);
cout << d->raw() << endl;
return 0;
}
dynamic_cast
Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?
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Aha. Thanks! I should have read the documentation more carefully. Thanks.
– David Jones
May 11 '13 at 14:47
3
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What is a void pointer in C++? [duplicate]
...actually know what the original type is; void* does not. This makes it far more dangerous than any of those, because it is very easy to get it wrong, and there's no way to ask if a particular usage is the right one.
And on a personal note, if you see code that uses void*'s "often", you should rethi...
Redis key naming conventions?
...ce it's O(N) because it's searching through all keys strored in database.
More appropriate solution for this problem is to create dedicated key, let's name is users, which will store all the users keys, for example, in list or set data structure.
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How to delete an object by id with entity framework
...otherwise, it just throws the exception back (you can handle this in a way more fit to your case using different catch blocks for different exception types, add more custom checks using if blocks etc.).
[I am using this code in a MVC .Net Core/.Net Core project with Entity Framework Core.]
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Create two blank lines in Markdown
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What is the usefulness of `enable_shared_from_this`?
...ects with separate reference counts. For this reason you must never create more than one shared_ptr from the same raw pointer.
– j_random_hacker
Apr 3 '09 at 2:31
4
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How do I read image data from a URL in Python?
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