get mantissa of floating-point number NAME significand, significandf, significandl - get mantissa of floating-point number LIBRARY Math library ( libm , -lm ) SYNOPSIS #inc...get mantissa of floating-point number NAME significand, significandf, significandl - get mantissa of floating-point number LIBRARY Math library ( libm , -lm ) SYNOPSIS #inc...get mantissa of floating-point number NAME significand, significandf, significandl - get mantissa of floating-point number LIBRARY Math library ( libm , -lm ) SYNOPSIS #inc...