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A fast method to round a double to a 32-bit int explained
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For those who'd like to convert to int64_t you can do that by shifting the mantissa left and then right by 13 bits. This will clear the exponent and the two bits from the 'magic' number, but will keep and propagate the sign to the entire 64-bit sign...
Why covariance and contravariance do not support value type
...ntational forms, "boxed" and "unboxed". The compiler has to insert code to convert from one form to the other, even though this is normally invisible at a source code level. In effect, only the "boxed" form is considered by the underlying system to be a subtype of object, but the compiler automatica...
Python int to binary string?
Are there any canned Python methods to convert an Integer (or Long) into a binary string in Python?
35 Answers
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How to convert array to SimpleXML
How can I convert an array to a SimpleXML object in PHP?
33 Answers
33
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How can I map True/False to 1/0 in a Pandas DataFrame?
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A succinct way to convert a single column of boolean values to a column of integers 1 or 0:
df["somecolumn"] = df["somecolumn"].astype(int)
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How to check if an object is nullable?
...se I got a boxed Nullable<T> but because I was writing a generic WPF converter base class and some properties are nullable, so I used Nullable.GetUnderlyingType to detect that case and Activator.CreateInstance to make a boxed nullable, (Convert.ChangeType doesn't handle nullables btw).
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How to convert a string or integer to binary in Ruby?
...ger#to_s(base) and String#to_i(base) available to you.
Integer#to_s(base) converts a decimal number to a string representing the number in the base specified:
9.to_s(2) #=> "1001"
while the reverse is obtained with String#to_i(base):
"1001".to_i(2) #=> 9
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How do you append an int to a string in C++? [duplicate]
...irectly to it, as in
std::cout << text << i;
The C++ way of converting all kinds of objects to strings is through string streams. If you don't have one handy, just create one.
#include <sstream>
std::ostringstream oss;
oss << text << i;
std::cout << oss.str()...
Convert JSON to Map
What is the best way to convert a JSON code as this:
17 Answers
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Leading zeros for Int in Swift
I'd like to convert an Int in Swift to a String with leading zeros. For example consider this code:
10 Answers
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