Make C floating point literals float (rather than double)

Question

It is well known that in C, floating point literals (e.g. 1.23) have type double. As a consequence, any calculation that involves them is promoted

Answer 1

-fsingle-precision-constant flag can be used. It causes floating-point constants to be loaded in single precision even when this is not exact.

Note- This will also use single precision constants in operations on double precision variables.