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mono-endian.h
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/
mono-endian.h
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#ifndef _MONO_METADATA_ENDIAN_H_
#define _MONO_METADATA_ENDIAN_H_ 1
#include <glib.h>
typedef union {
guint32 ival;
float fval;
} mono_rfloat;
typedef union {
guint64 ival;
double fval;
unsigned char cval [8];
} mono_rdouble;
#ifdef ARM_FPU_FPA
#define MONO_DOUBLE_ASSERT_ENDIANITY(dbl_ptr) \
do { \
mono_rdouble r; \
r.fval = *dbl_ptr; \
r.ival = (guint64) *((guint32 *) r.cval) << 32 | \
*((guint32 *) (r.cval + 4)); \
*dbl_ptr = r.fval; \
} while (0)
#else
#define MONO_DOUBLE_ASSERT_ENDIANITY(dbl_ptr)
#endif
#if NO_UNALIGNED_ACCESS
guint16 mono_read16 (const unsigned char *x);
guint32 mono_read32 (const unsigned char *x);
guint64 mono_read64 (const unsigned char *x);
#define read16(x) (mono_read16 ((const unsigned char *)(x)))
#define read32(x) (mono_read32 ((const unsigned char *)(x)))
#define read64(x) (mono_read64 ((const unsigned char *)(x)))
#else
#define read16(x) GUINT16_FROM_LE (*((const guint16 *) (x)))
#define read32(x) GUINT32_FROM_LE (*((const guint32 *) (x)))
#define read64(x) GUINT64_FROM_LE (*((const guint64 *) (x)))
#endif
#define readr4(x,dest) \
do { \
mono_rfloat mf; \
mf.ival = read32 ((x)); \
*(dest) = mf.fval; \
} while (0)
#define readr8(x,dest) \
do { \
mono_rdouble mf; \
mf.ival = read64 ((x)); \
MONO_DOUBLE_ASSERT_ENDIANITY (&mf.fval); \
*(dest) = mf.fval; \
} while (0)
#endif /* _MONO_METADATA_ENDIAN_H_ */