code: def to_float(s, strict=False, rnd=round_fast):
      """
      Convert a raw mpf to a Python float. The result is exact if the
      bitcount of s is <= 53 and no underflow/overflow occurs.
  
      If the number is too large or too small to represent as a regular
      float, it will be converted to inf or 0.0. Setting strict=True
      forces an OverflowError to be raised instead.
  
      Warning: with a directed rounding mode, the correct nearest representable
      floating-point number in the specified direction might not be computed
      in case of overflow or (gradual) underflow.
      """
      sign, man, exp, bc = s
      if not man:
          if s == fzero:
              return 0.0
          if s == finf:
              return math_float_inf
          if s == fninf:
              return -math_float_inf
          return math_float_inf / math_float_inf
      if bc > 53:
          sign, man, exp, bc = normalize1(sign, man, exp, bc, 53, rnd)
      if sign:
          man = -man
      try:
          return math.ldexp(man, exp)
      except OverflowError:
          if strict:
              raise
          # Overflow to infinity
          if exp + bc > 0:
              if sign:
                  return -math_float_inf
              else:
                  return math_float_inf
          # Underflow to zero
          return 0.0
  
imports: import math
  from bisect import bisect
  import sys
  from .backend import MPZ, MPZ_TYPE, MPZ_ZERO, MPZ_ONE, MPZ_TWO, MPZ_FIVE, BACKEND, STRICT, HASH_MODULUS, HASH_BITS, gmpy, sage, sage_utils
  from .libintmath import giant_steps, trailtable, bctable, lshift, rshift, bitcount, trailing, sqrt_fixed, numeral, isqrt, isqrt_fast, sqrtrem, bin_to_radix
label_desc: Use image node_id 22 for calling a global function with example usage: to_float(s, strict, rnd) and returns: unknown, math, int, math_float_inf, unknown, int, unknown, math_float_inf