minimum double value in C/C++

Question

Is there a standard and/or portable way to represent the smallest negative value (e.g. to use negative infinity) in a C(++) program?

DBL_MIN in float.h is the smalle

Answer 1

Try this:

-1 * numeric_limits::max()

Reference: numeric_limits

This class is specialized for each of the fundamental types, with its members returning or set to the different values that define the properties that type has in the specific platform in which it compiles.