-/*
- * Deserialize an IEEE 754 binary32 value in "little endian" (for whatever
- * that term is worth in this context). That is, when interpreted as a little
- * endian 32-bit unsigned integer: bit 31 is the sign, bits 30-23 are the
- * (biased) exponent, and bits 22-0 are the encoded part of the significand.
- *
- * The implementation is designed to be agnostic of the platform's actual
- * float type, but the conversion may be lossy if "float" is not itself a
- * binary32 format. NaN payloads are not preserved.
- */
-static float unpack_binary32_le(const unsigned char *buf)
-{
- unsigned long raw;
- long significand;
- int exponent;
- float result;
-
- raw = unpack_32_le(buf);
- exponent = (raw & 0x7f800000) >> 23;
- significand = (raw & 0x007fffff) >> 0;
-
- switch (exponent) {
- case 255:
- result = significand ? NAN : INFINITY;
- break;
- default:
- significand |= 0x00800000;
- /* fall through */
- case 0:
- result = ldexpf(significand, exponent-126-24);
- }
-
- return copysignf(result, raw & 0x80000000 ? -1 : 1);
-}
-