Function size_of_exponent (o2scl)¶
-
size_t
o2scl
::
size_of_exponent
(double x)¶ Returns the number of characters required to display the exponent of
x
in scientific mode.This returns 2 or 3, depending on whether or not the absolute magnitude of the exponent is greater than or equal to 100. It uses
stringstream
to convert the number to a string and counts the number of characters directly.