Experimental Physics and
Industrial Control System

Jerzy Tarasiuk via Core-talk <core-talk at aps.anl.gov> · Thu, 17 Jun 2021 12:20:51 -0000

Shortly, these 8 'deprecated' warnings were caused
by using functions purposely marked as deprecated.
Possibly they are planned for removing. More below.

The warning 'deprecated' occur for 2 files only:
1. modules/pvData/testApp/misc/testByteBuffer.cpp  lines  164  and  191
   testOk1(strncmp(buff->getArray(),&src[2],6)==0);
   testOk1(strncmp(buf->getArray(),expect,6)==0);
- the warning is when the getArray() is invoked and used as
  strncmp() arg (the warning place is the ')' of the getArray())
  the buff/buf are of type  ByteBuffer(32)  #include <pv/byteBuffer.h>
- see modules/pvData/src/misc/pv/byteBuffer.h for the getArray() definition
  EPICS_ALWAYS_INLINE const char* getArray() const EPICS_DEPRECATED
- modules/libcom/src/osi/compiler/clang/compilerSpecific.h
  #define EPICS_DEPRECATED __attribute__((deprecated))
- obviously the warning is generated purposely

2. modules/pvAccess/testApp/remote/testServer.cpp  lines  2261  2270  2279
    epics::pvData::StructureConstPtr s =
      getFieldCreate()->createFieldBuilder()->
=>    addBoundedString("value", 8)->
      add("timeStamp", getStandardField()->timeStamp())->  
      createStructure();
     epics::pvData::StructureConstPtr s =
       getFieldCreate()->createFieldBuilder()->
=>     addBoundedArray("value", pvDouble, 8)->
       add("timeStamp", getStandardField()->timeStamp())->
       createStructure();
     epics::pvData::StructureConstPtr s =
       getFieldCreate()->createFieldBuilder()->
=>     addFixedArray("value", pvDouble, 8)->
       add("timeStamp", getStandardField()->timeStamp())->
       createStructure();
the warning place is always on the ')'.
=> https://github.com/epics-base/pvDataCPP/issues/52
 [-Wdeprecated-declarations]
- modules/pvData/src/pv/pvIntrospect.h 
  #define PVD_DEPRECATED_52 PVD_DEPRECATED(\
"See https://github.com/epics-base/pvDataCPP/issues/52";)
- these functions addBoundedString(), addBoundedArray(),
  and addFixedArray() are marked by the PVD_DEPRECATED_52 
- modules/pvData/src/misc/pv/serialize.h
  defines PVD_DEPRECATED(msg) if defined(PVD_INTERNAL)
  (without the PVD_INTERNAL it is defined as do-nothing)

** Bug watch added: github.com/epics-base/pvDataCPP/issues #52
   https://github.com/epics-base/pvDataCPP/issues/52

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https://bugs.launchpad.net/bugs/1905159

Title:
  Fix warnings from recent compiler versions

Status in EPICS Base:
  Triaged

Bug description:
  Builds of EPICS Base using recent versions of gcc, clang and MSVC
  generate compiler warnings, which we try to minimize if possible. Some
  of these warnings can be prevented with suitable code modifications,
  although the code must still build on the older compilers and other
  architectures that we support.

  Both the 3.15 and 7.0 branches can be examined for warnings; fixes
  made on the 3.15 branch get propagated to the 7.0 branch during
  periodic up-merges, so there is no need to make the same changes to
  both branches. Some code only exists on one branch; for example the
  gdd module was unbundled after 3.15, and there are many new modules in
  7.0.

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System