Function DeserializeFloatOverPointer

freebsd/kern/kern_ubsan.c:1402–1437

#ifndef _KERNEL
static void
DeserializeFloatOverPointer(char *pBuffer, size_t zBUfferLength, struct CTypeDescriptor *pType, unsigned long *pNumber)
{
	double D;
#ifdef __HAVE_LONG_DOUBLE
	long double LD;
#endif

	ASSERT(pBuffer);
	ASSERT(zBUfferLength > 0);
	ASSERT(pType);
	ASSERT(pNumber);
	/*
	 * This function handles 64-bit number over a pointer on 32-bit CPUs.
	 */
	ASSERT((sizeof(*pNumber) * CHAR_BIT < WIDTH_64) || (zDeserializeTypeWidth(pType) >= WIDTH_64));
	ASSERT(sizeof(D) == sizeof(uint64_t));
#ifdef __HAVE_LONG_DOUBLE
	ASSERT(sizeof(LD) > sizeof(uint64_t));
#endif

	switch (zDeserializeTypeWidth(pType)) {
#ifdef __HAVE_LONG_DOUBLE
	case WIDTH_128:
	case WIDTH_96:
	case WIDTH_80:
		memcpy(&LD, pNumber, sizeof(long double));
		snprintf(pBuffer, zBUfferLength, "%Lg", LD);
		break;
#endif
	case WIDTH_64:
		memcpy(&D, pNumber, sizeof(double));
		snprintf(pBuffer, zBUfferLength, "%g", D);
		break;
	}
}

static void
DeserializeFloatInlined(char *pBuffer, size_t zBUfferLength, struct CTypeDescriptor *pType, unsigned long ulNumber)