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double Double-Precision Floating-Point Data Type
The double type declares an object to be of "double-precision"
floating-point type. The size (and representation) of a double
object is implementation-defined. A double is the same or greater in
size than a float.
Notes: In Turbo C+, the size of a double object is eight
bytes. The range of values is approximately 1.7E-308 to
1.7E+308.
All floating constants have type double. You can coerce a
floating constant to type float by adding an `F' suffix
to the constant.
The decision between using double and float is one of
space versus run-time conversion cost.
In Turbo C++, both doubles and long doubles are eight
bytes.
-------------------------------- Example ---------------------------------
double value = 1.234;
double d1 = 1.234E-24;
value = (double) 123;
See Also:
float
long
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