Correct format specifier for double in printf - Stack Overflow
Format %lf in printf was not supported in old (pre-C99) versions of C language, which created superficial "inconsistency" between format specifiers for double in printf and scanf.

c++ - double and accuracy - Stack Overflow
A double typically provides 16 (±1) decimal digits. Your example shows this: 4 8 12 16 v v v v 0.947368421052631578 long double 0.947368421052631526 double The answers agree to 16 digits. This is what should be expected. Also, note that there's no guarantee in the C Standard that a long double has more precision than a double. The last decimal digit (16th or 17th) is not necessarily accurate ...

Biggest integer that can be stored in a double - Stack Overflow
The biggest/largest integer that can be stored in a double without losing precision is the same as the largest possible value of a double. That is, DBL_MAX or approximately 1.8 × 10 308 (if your double is an IEEE 754 64-bit double). It's an integer, and it's represented exactly. What you might want to know instead is what the largest integer is, such that it and all smaller integers can be ...

Difference between long double and double in C and C++
Possible Duplicate: long double vs double I am new to programming and I am unable to understand the difference between between long double and double in C and C++. I tried to Google it but was unab...

c++ - what's a variable with & -> double& - Stack Overflow
5 double& is just a double passed by reference. In VB.NET, it would be declared ByRef dec_deg as Double. EDIT: However, I would recommend instead of using a void function to set a value by reference, just change the return type to double and return the expression instead of having to pass a variable by reference.

How do I print a double value with full precision using cout?
In my earlier question I was printing a double using cout that got rounded when I wasn't expecting it. How can I make cout print a double using full precision?

What does the !! (double exclamation mark) operator do in JavaScript ...
The double "not" in this case is quite simple. It is simply two not s back to back. The first one simply "inverts" the truthy or falsy value, resulting in an actual Boolean type, and then the second one "inverts" it back again to its original state, but now in an actual Boolean value. That way you have consistency:

java - Cast Double to Integer - Stack Overflow
494 A Double is not an Integer, so the cast won't work. Note the difference between the Double class and the double primitive. Also note that a Double is a Number, so it has the method intValue, which you can use to get the value as a primitive int.

Integer division: How do you produce a double? - Stack Overflow
double num = 5; That avoids a cast. But you'll find that the cast conversions are well-defined. You don't have to guess, just check the JLS. int to double is a widening conversion. From §5.1.2: Widening primitive conversions do not lose information about the overall magnitude of a numeric value. [...] Conversion of an int or a long value to float, or of a long value to double, may result in ...

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