syntax = "proto3";

package tensorflow;
// option cc_enable_arenas = true;

enum DataType {
  // Not a legal value for DataType.  Used to indicate a DataType field
  // has not been set.
  DT_INVALID = 0;

  // Data types that all computation devices are expected to be
  // capable to support.
  DT_FLOAT = 1;
  DT_DOUBLE = 2;
  DT_INT32 = 3;
  DT_UINT8 = 4;
  DT_INT16 = 5;
  DT_INT8 = 6;
  DT_STRING = 7;
  DT_COMPLEX64 = 8;  // Single-precision complex
  DT_INT64 = 9;
  DT_BOOL = 10;
  DT_QINT8 = 11;     // Quantized int8
  DT_QUINT8 = 12;    // Quantized uint8
  DT_QINT32 = 13;    // Quantized int32
  DT_BFLOAT16 = 14;  // Float32 truncated to 16 bits.  Only for cast ops.

  // TODO(josh11b): DT_GENERIC_PROTO = ??;
  // TODO(jeff,josh11b): DT_UINT64?  DT_UINT32?  DT_UINT16?
  // TODO(zhifengc): DT_COMPLEX128 (double-precision complex)?

  // Do not use!  These are only for parameters.  Every enum above
  // should have a corresponding value below (verified by types_test).
  DT_FLOAT_REF = 101;
  DT_DOUBLE_REF = 102;
  DT_INT32_REF = 103;
  DT_UINT8_REF = 104;
  DT_INT16_REF = 105;
  DT_INT8_REF = 106;
  DT_STRING_REF = 107;
  DT_COMPLEX64_REF = 108;
  DT_INT64_REF = 109;
  DT_BOOL_REF = 110;
  DT_QINT8_REF = 111;
  DT_QUINT8_REF = 112;
  DT_QINT32_REF = 113;
  DT_BFLOAT16_REF = 114;
}