1 files changed, 109 insertions, 0 deletions
diff --git a/src/cbor/encoding.h b/src/cbor/encoding.h
new file mode 100644
index 000000000000..e4f2102b636a
--- /dev/null
+++ b/src/cbor/encoding.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
+ *
+ * libcbor is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#ifndef LIBCBOR_ENCODING_H
+#define LIBCBOR_ENCODING_H
+
+#include "cbor/cbor_export.h"
+#include "cbor/common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * ============================================================================
+ * Primitives encoding
+ * ============================================================================
+ */
+
+CBOR_EXPORT size_t cbor_encode_uint8(uint8_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_uint16(uint16_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_uint32(uint32_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_uint64(uint64_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_uint(uint64_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_negint8(uint8_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_negint16(uint16_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_negint32(uint32_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_negint64(uint64_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_negint(uint64_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_bytestring_start(size_t, unsigned char *,
+                                                size_t);
+
+CBOR_EXPORT size_t cbor_encode_indef_bytestring_start(unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_string_start(size_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_indef_string_start(unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_array_start(size_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_indef_array_start(unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_map_start(size_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_indef_map_start(unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_tag(uint64_t, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_bool(bool, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_null(unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_undef(unsigned char *, size_t);
+
+/** Encodes a half-precision float
+ *
+ * Since there is no native representation or semantics for half floats
+ * in the language, we use single-precision floats, as every value that
+ * can be expressed as a half-float can also be expressed as a float.
+ *
+ * This however means that not all floats passed to this function can be
+ * unambiguously encoded. The behavior is as follows:
+ *  - Infinity, NaN are preserved
+ *  - Zero is preserved
+ *  - Denormalized numbers keep their sign bit and 10 most significant bit of
+ * the significand
+ *  - All other numbers
+ *   - If the logical value of the exponent is < -24, the output is zero
+ *   - If the logical value of the exponent is between -23 and -14, the output
+ *     is cut off to represent the 'magnitude' of the input, by which we
+ *     mean (-1)^{signbit} x 1.0e{exponent}. The value in the significand is
+ * lost.
+ *   - In all other cases, the sign bit, the exponent, and 10 most significant
+ * bits of the significand are kept
+ *
+ * @param value
+ * @param buffer Target buffer
+ * @param buffer_size Available space in the buffer
+ * @return number of bytes written
+ */
+CBOR_EXPORT size_t cbor_encode_half(float, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_single(float, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_double(double, unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_break(unsigned char *, size_t);
+
+CBOR_EXPORT size_t cbor_encode_ctrl(uint8_t, unsigned char *, size_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // LIBCBOR_ENCODING_H