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add typemap.h

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helper for switch() over DBF or PVD scalar type codes
This commit is contained in:
Michael Davidsaver
2017-09-07 15:53:40 -05:00
parent 111f7bd15e
commit 8f98d9792b
2 changed files with 42 additions and 0 deletions
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1
src/pv/Makefile
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@@ -10,6 +10,7 @@ INC += pv/convert.h
INC += pv/standardField.h
INC += pv/standardPVField.h
INC += pv/pvSubArrayCopy.h
INC += pv/typemap.h
INC += pv/pvdVersion.h
INC += pv/pvdVersionNum.h

41
src/pv/typemap.h Normal file
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@@ -0,0 +1,41 @@
/* #define CASE(BASETYPE, PVATYPE, DBFTYPE, PVACODE)
*
* Helper for switch() on type code
*
* BASETYPE is suffix of type from epicsTypes.h
* epics ## BASETYPE -> eg. epicsUInt8
* PVATYPE is storage type
* PVATYPE -> eg epics::pvData::uint8
* DBFTYPE is suffix of DBF_*
* DBF_ ## DBFTYPE -> eg. DBF_UCHAR
* PVACODE is suffix of ScalarType enum
* epics::pvData::pv ## PVACODE -> epics::pvData::pvUByte
*/
CASE(UInt8, epics::pvData::uint8, UCHAR, UByte)
CASE(Int8, epics::pvData::int8, CHAR, Byte)
CASE(UInt16, epics::pvData::uint16, USHORT, UShort)
CASE(Int16, epics::pvData::int16, SHORT, Short)
CASE(UInt32, epics::pvData::uint32, ULONG, UInt)
CASE(Int32, epics::pvData::int32, LONG, Int)
CASE(Float32, float, FLOAT, Float)
CASE(Float64, double, DOUBLE, Double)
#ifndef CASE_SKIP_BOOL
CASE(UInt8, epics::pvData::boolean, UCHAR, Boolean)
#endif
#ifdef CASE_REAL_INT64
CASE(UInt64, epics::pvData::uint64, UINT64, ULong)
CASE(Int64, epics::pvData::int64, INT64, Long)
#elif defined(CASE_SQUEEZE_INT64)
CASE(UInt32, epics::pvData::uint64, ULONG, ULong)
CASE(Int32, epics::pvData::int64, LONG, Long)
#else
/* nothing */
#endif
#ifdef CASE_ENUM
// yes really, Base uses SHORT (16-bit) while PVD uses Int (32-bit)
CASE(Enum16, epics::pvData::int32, ENUM, Int)
#endif
#ifdef CASE_STRING
CASE(Int8, std::string, CHAR, String)
#endif
/* #undef CASE */