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Objective-C class -> string like: [NSArray className] -> @“NSArray”
I am trying to get a string name of a class from the class object itself.
3 Answers
3
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Length of an integer in Python
...er as in the number of digits in the integer, you can always convert it to string like str(133) and find its length like len(str(123)).
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Replace all non-alphanumeric characters in a string
I have a string with which i want to replace any character that isn't a standard character or number such as (a-z or 0-9) with an asterisk. For example, "h^&ell`.,|o w]{+orld" is replaced with "h*ell*o*w*orld". Note that multiple characters such as "^&" get replaced with one asterisk. How would I go...
Rails 3: “field-with-errors” wrapper changes the page appearance. How to avoid this?
... Anurag: if html_tag happens to be nil, or anything other than a string, then a plain html_tag.html_safe would rais an error. Putting it in "#{html_tag}" implicitly calls html_tag.to_s, which hopefully will return a string, which will then be able to respond to html_safe
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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
...integral types):
There are five standard signed integer types : signed char, short int, int, long int, and long long int. In this list, each type provides at least as much storage as those preceding it in the list.
There's also a table 9 in 7.1.6.2 Simple type specifiers, which shows the "mapp...
How to retrieve form values from HTTPPOST, dictionary or?
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@Goose, because it is magic strings. You don't get any compile time safety. Your code will fail at runtime if you make a typo in the name of the variable whereas if you are using strong typing, the compiler will be your friend.
– D...
Python: Why is functools.partial necessary?
...tack frame.
Neither the function generated by partial nor lambdas have docstrings by default (though you can set the doc string for any objects via __doc__).
You can find more details in this blog: Partial Function Application in Python
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What are the rules for the “…” token in the context of variadic templates?
...ttern = z<T>(args)
}
Now if I call this function passing T as {int, char, short}, then each of the function call is expanded as:
g( arg0, arg1, arg2 );
h( x(arg0), x(arg1), x(arg2) );
m( y(arg0, arg1, arg2) );
n( z<int>(arg0), z<char>(arg1), z<short>(arg2) );
In ...
Printing the correct number of decimal points with cout
...d/
#include <iostream>
#include <iomanip>
int main(int argc, char** argv)
{
float testme[] = { 0.12345, 1.2345, 12.345, 123.45, 1234.5, 12345 };
std::cout << std::setprecision(2) << std::fixed;
for(int i = 0; i < 6; ++i)
{
std::cout << tes...
C# using streams
...read from stream, for example StreamReader can be used to read from Stream string not byte[]. if you will give FileStream as a parameter it will read from File, if NetworkStream from socket.
– Arsen Mkrtchyan
Sep 10 '09 at 17:55
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