In most languages, toString or the equivalent method just guarantees that an object can be represented textually. This is especially useful for logging, debugging, or any other circumstance where you need to be able to render any and every object you encounter as a string. Objects often implement custom toString behavior so that the method … Read more
Python has two different ways to convert an object to a string: str() and repr(). Printing an object uses str(); printing a list containing an object uses str() for the list itself, but the implementation of list.__str__() calls repr() for the individual items. So you should also overwrite __repr__(). A simple __repr__ = __str__ at … Read more
Due to the fact the float and double are internally stored in binary, the literal 7.40200133400 actually stands for the number 7.40200133400000037653398976544849574565887451171875 …so how much precision do you really want? 🙂 #include <iomanip> int main() { double x = 7.40200133400; std::cout << std::setprecision(51) << x << “\n”; } And yes, this program really prints 7.40200133400000037653398976544849574565887451171875!
Try this: System.Globalization.CultureInfo customCulture = (System.Globalization.CultureInfo)System.Threading.Thread.CurrentThread.CurrentCulture.Clone(); customCulture.NumberFormat.NumberDecimalSeparator = “.”; System.Threading.Thread.CurrentThread.CurrentCulture = customCulture;
Some shortcut is to create a NumberFormatInfo class, set its NumberDecimalSeparator property to “.” and use the class as parameter to ToString() method whenever u need it. using System.Globalization; NumberFormatInfo nfi = new NumberFormatInfo(); nfi.NumberDecimalSeparator = “.”; value.ToString(nfi);
Here it is: <script type=”text/javascript”> function xmlToString(xmlData) { var xmlString; //IE if (window.ActiveXObject){ xmlString = xmlData.xml; } // code for Mozilla, Firefox, Opera, etc. else{ xmlString = (new XMLSerializer()).serializeToString(xmlData); } return xmlString; } </script> Taken from here
Sometimes when I call the ToString method it returns the fully qualified name of the runtime type of the object that received the call. Correct. But for some types, such as System.Int32, ToString returns the value of the receiver converted to a string. Correct. Does the System.Int32 struct override the ToString method? Yes. Do other … Read more
Convert BigInteger to decimal, hex, binary, octal string: Let’s start with a BigInteger value: BigInteger bigint = BigInteger.Parse(“123456789012345678901234567890”); Base 10 and Base 16 The built-in Base 10 (decimal) and base 16 (hexadecimal) conversions are easy: // Convert to base 10 (decimal): string base10 = bigint.ToString(); // Convert to base 16 (hexadecimal): string base16 = bigint.ToString(“X”); … Read more
Convert.ToString() handles null, while ToString() doesn’t.
Definitely not as elegant as Python, but nothing quite is as elegant as Python in C++. You could use a stringstream … #include <sstream> //… std::stringstream ss; for(size_t i = 0; i < v.size(); ++i) { if(i != 0) ss << “,”; ss << v[i]; } std::string s = ss.str(); You could also make use … Read more