Experimental Physics and
Industrial Control System

Public bug reported:

Some code in EPICS uses printf with the z format modifier for size_t arguments, as in "%zu". This is not portable. VxWorks (at least up to version 6.9.0) does not understand this and prints "zu" and then shifts all the remaining arguments to the wrong format specifier!
Older Windows versions uses "%Iu" for the same purpose.

Affected code:
modules/libcom/src/error/errlog.c (2x)
modules/libcom/test/epicsErrlogTest.c
modules/libcom/test/yajl_test.c (2x)
modules/pvAccess/pvtoolsSrc/pvlist.cpp (2x)
modules/pvAccess/src/ioc/reftrackioc.cpp (2x)
modules/pvAccess/blockingUDPTransport.cpp (4x)
modules/pvAccess/src/remote/codec.cpp (2x)
modules/pvAccess/src/remote/transportRegistry.cpp
modules/pvAccess/src/server/responseHandlers.cpp
modules/pvAccess/testApp/remote/testChannelConnect.cpp
modules/pvAccess/testApp/remote/testmonitorfifo.cpp (4x)
modules/pvData/src/factory/FieldCreateFactory.cpp (2x)
modules/pvData/testApp/pv/performstruct.cpp (2x)
modules/pvData/testApp/pv/testPVData.cpp
modules/pva2pva/pdbApp/pdbgroup.cpp
modules/pva2pva/pdbApp/pvalink.cpp (3x)
modules/pva2pva/pdbApp/pvalink_jlif.cpp
modules/pva2pva/testApp/testpdb.cpp (2x)

** Affects: epics-base
     Importance: Undecided
         Status: New

** Summary changed:

- Using %z in printf is not portavle
+ Using %z in printf is not portable

** Description changed:

- Some code in EPICS uses printf with the z format modifier for size_t arguments, as in "%zu". This is not portable. VxWorks (at least up to version 6.9.0) does not understand this and prints "zu". 
+ Some code in EPICS uses printf with the z format modifier for size_t arguments, as in "%zu". This is not portable. VxWorks (at least up to version 6.9.0) does not understand this and prints "zu" and then shifts all the remaining arguments to the wrong format specifier!
  Older Windows versions uses "%Iu" for the same purpose.
  
  Affected code:
  modules/libcom/src/error/errlog.c (2x)
  modules/libcom/test/epicsErrlogTest.c
  modules/libcom/test/yajl_test.c (2x)
  modules/pvAccess/pvtoolsSrc/pvlist.cpp (2x)
  modules/pvAccess/src/ioc/reftrackioc.cpp (2x)
  modules/pvAccess/blockingUDPTransport.cpp (4x)
  modules/pvAccess/src/remote/codec.cpp (2x)
  modules/pvAccess/src/remote/transportRegistry.cpp
  modules/pvAccess/src/server/responseHandlers.cpp
  modules/pvAccess/testApp/remote/testChannelConnect.cpp
  modules/pvAccess/testApp/remote/testmonitorfifo.cpp (4x)
  modules/pvData/src/factory/FieldCreateFactory.cpp (2x)
  modules/pvData/testApp/pv/performstruct.cpp (2x)
  modules/pvData/testApp/pv/testPVData.cpp
  modules/pva2pva/pdbApp/pdbgroup.cpp
  modules/pva2pva/pdbApp/pvalink.cpp (3x)
  modules/pva2pva/pdbApp/pvalink_jlif.cpp
  modules/pva2pva/testApp/testpdb.cpp (2x)

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https://bugs.launchpad.net/bugs/1952074

Title:
  Using %z in printf is not portable

Status in EPICS Base:
  New

Bug description:
  Some code in EPICS uses printf with the z format modifier for size_t arguments, as in "%zu". This is not portable. VxWorks (at least up to version 6.9.0) does not understand this and prints "zu" and then shifts all the remaining arguments to the wrong format specifier!
  Older Windows versions uses "%Iu" for the same purpose.

  Affected code:
  modules/libcom/src/error/errlog.c (2x)
  modules/libcom/test/epicsErrlogTest.c
  modules/libcom/test/yajl_test.c (2x)
  modules/pvAccess/pvtoolsSrc/pvlist.cpp (2x)
  modules/pvAccess/src/ioc/reftrackioc.cpp (2x)
  modules/pvAccess/blockingUDPTransport.cpp (4x)
  modules/pvAccess/src/remote/codec.cpp (2x)
  modules/pvAccess/src/remote/transportRegistry.cpp
  modules/pvAccess/src/server/responseHandlers.cpp
  modules/pvAccess/testApp/remote/testChannelConnect.cpp
  modules/pvAccess/testApp/remote/testmonitorfifo.cpp (4x)
  modules/pvData/src/factory/FieldCreateFactory.cpp (2x)
  modules/pvData/testApp/pv/performstruct.cpp (2x)
  modules/pvData/testApp/pv/testPVData.cpp
  modules/pva2pva/pdbApp/pdbgroup.cpp
  modules/pva2pva/pdbApp/pvalink.cpp (3x)
  modules/pva2pva/pdbApp/pvalink_jlif.cpp
  modules/pva2pva/testApp/testpdb.cpp (2x)

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Replies:

[Bug 1952074] Re: Using %z in printf is not portable Dirk Zimoch via Core-talk

[Bug 1952074] Re: Using %z in printf is not portable Dirk Zimoch via Core-talk

[Bug 1952074] Re: Using %z in printf is not portable Ralph Lange via Core-talk

[Bug 1952074] Re: Using %z in printf is not portable rivers via Core-talk

[Bug 1952074] Re: Using %z in printf is not portable rivers via Core-talk

[Bug 1952074] Re: Using %z in printf is not portable Dirk Zimoch via Core-talk

[Bug 1952074] Re: Using %z in printf is not portable rivers via Core-talk

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