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+/****************************************************************************
+**
+** Copyright (C) 2017 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#ifndef CBORINTERNAL_P_H
+#define CBORINTERNAL_P_H
+
+#include "compilersupport_p.h"
+
+#ifndef CBOR_NO_FLOATING_POINT
+#  include <float.h>
+#  include <math.h>
+#else
+#  ifndef CBOR_NO_HALF_FLOAT_TYPE
+#    define CBOR_NO_HALF_FLOAT_TYPE     1
+#  endif
+#endif
+
+#ifndef CBOR_NO_HALF_FLOAT_TYPE
+#  ifdef __F16C__
+#    include <immintrin.h>
+static inline unsigned short encode_half(double val)
+{
+    return _cvtss_sh((float)val, 3);
+}
+static inline double decode_half(unsigned short half)
+{
+    return _cvtsh_ss(half);
+}
+#  else
+/* software implementation of float-to-fp16 conversions */
+static inline unsigned short encode_half(double val)
+{
+    uint64_t v;
+    int sign, exp, mant;
+    memcpy(&v, &val, sizeof(v));
+    sign = v >> 63 << 15;
+    exp = (v >> 52) & 0x7ff;
+    mant = v << 12 >> 12 >> (53-11);    /* keep only the 11 most significant bits of the mantissa */
+    exp -= 1023;
+    if (exp == 1024) {
+        /* infinity or NaN */
+        exp = 16;
+        mant >>= 1;
+    } else if (exp >= 16) {
+        /* overflow, as largest number */
+        exp = 15;
+        mant = 1023;
+    } else if (exp >= -14) {
+        /* regular normal */
+    } else if (exp >= -24) {
+        /* subnormal */
+        mant |= 1024;
+        mant >>= -(exp + 14);
+        exp = -15;
+    } else {
+        /* underflow, make zero */
+        return 0;
+    }
+
+    /* safe cast here as bit operations above guarantee not to overflow */
+    return (unsigned short)(sign | ((exp + 15) << 10) | mant);
+}
+
+/* this function was copied & adapted from RFC 7049 Appendix D */
+static inline double decode_half(unsigned short half)
+{
+    int exp = (half >> 10) & 0x1f;
+    int mant = half & 0x3ff;
+    double val;
+    if (exp == 0) val = ldexp(mant, -24);
+    else if (exp != 31) val = ldexp(mant + 1024, exp - 25);
+    else val = mant == 0 ? INFINITY : NAN;
+    return half & 0x8000 ? -val : val;
+}
+#  endif
+#endif /* CBOR_NO_HALF_FLOAT_TYPE */
+
+#ifndef CBOR_INTERNAL_API
+#  define CBOR_INTERNAL_API
+#endif
+
+#ifndef CBOR_PARSER_MAX_RECURSIONS
+#  define CBOR_PARSER_MAX_RECURSIONS 1024
+#endif
+
+/*
+ * CBOR Major types
+ * Encoded in the high 3 bits of the descriptor byte
+ * See http://tools.ietf.org/html/rfc7049#section-2.1
+ */
+typedef enum CborMajorTypes {
+    UnsignedIntegerType = 0U,
+    NegativeIntegerType = 1U,
+    ByteStringType = 2U,
+    TextStringType = 3U,
+    ArrayType = 4U,
+    MapType = 5U,           /* a.k.a. object */
+    TagType = 6U,
+    SimpleTypesType = 7U
+} CborMajorTypes;
+
+/*
+ * CBOR simple and floating point types
+ * Encoded in the low 8 bits of the descriptor byte when the
+ * Major Type is 7.
+ */
+typedef enum CborSimpleTypes {
+    FalseValue              = 20,
+    TrueValue               = 21,
+    NullValue               = 22,
+    UndefinedValue          = 23,
+    SimpleTypeInNextByte    = 24,   /* not really a simple type */
+    HalfPrecisionFloat      = 25,   /* ditto */
+    SinglePrecisionFloat    = 26,   /* ditto */
+    DoublePrecisionFloat    = 27,   /* ditto */
+    Break                   = 31
+} CborSimpleTypes;
+
+enum {
+    SmallValueBitLength     = 5U,
+    SmallValueMask          = (1U << SmallValueBitLength) - 1,      /* 31 */
+    Value8Bit               = 24U,
+    Value16Bit              = 25U,
+    Value32Bit              = 26U,
+    Value64Bit              = 27U,
+    IndefiniteLength        = 31U,
+
+    MajorTypeShift          = SmallValueBitLength,
+    MajorTypeMask           = (int) (~0U << MajorTypeShift),
+
+    BreakByte               = (unsigned)Break | (SimpleTypesType << MajorTypeShift)
+};
+
+CBOR_INTERNAL_API CborError CBOR_INTERNAL_API_CC _cbor_value_extract_number(const uint8_t **ptr, const uint8_t *end, uint64_t *len);
+CBOR_INTERNAL_API CborError CBOR_INTERNAL_API_CC _cbor_value_prepare_string_iteration(CborValue *it);
+CBOR_INTERNAL_API CborError CBOR_INTERNAL_API_CC _cbor_value_get_string_chunk(const CborValue *value, const void **bufferptr,
+                                                                              size_t *len, CborValue *next);
+
+
+#endif /* CBORINTERNAL_P_H */