lispdoc - results for float-precision

(float-precision f)
Function: Return a non-negative number of significant digits in its float argument. Will be less than FLOAT-DIGITS if denormalized or zero.
 Mentioned in:
CLtL2 - 12.6. Type Conversions and Component Extractions on Numbers
HyperSpec - Function DECODE-FLOAT, SCALE-FLOAT, FLOAT-RADIX, FLOAT-SIGN, FLOAT-DIGITS, FLOAT-PRECISION, INTEGER-DECODE-FLOAT