Conference turris::decc

    +---------------------------+ TM
    |   |   |   |   |   |   |   |
    | d | i | g | i | t | a | l |       Interoffice Memorandum
    |   |   |   |   |   |   |   |
    +---------------------------+


    To:  List                 Date:     25-MAR-1997
                              From:     The DEC C team
                              Group:    The Languages Group


The DEC C development group  announces  the  availability  of the field test
T5.6-001 kits for DEC C for OpenVMS VAX.   This is a 32 bit native
compiler using a VCG backend.

This is primarily a maintenance release focused on bug fixes, usability and
message improvements, and providing V7.1 runtime library features on prior
versions of VMS. Please see the file SYS$LIBRARY:DECC$CRTL.README for specific
information on building applications that need to use new DEC C runtime library
features on older versions of OpenVMS.

  o  Message group C_TO_CXX. This message group contains an
     optional set of diagnostics that report the use of a
     number of C language constructs that are not compatible
     with, or have a slightly different meaning in, the C++
     language. This group may be enabled explicitly either on
     the command line (/WARN=ENABLE=C_TO_CXX) or by #pragma
     message enable (c_to_cxx).

  o  New diagnostics to detect simple expressions with side
     effects that are undefined in ANSI C. The C standard
     formalized defacto rules about side effects in terms of
     sequence points. An expression that modifies the same
     object more than once, or that modifies an object and
     fetches its value for a purpose other than computing the
     modified value, has undefined behavior unless there is
     an intervening sequence point. The compiler now warns
     about such expressions (only for objects that are simple
     declared variables).

  o  Source listings now include statement level nesting.
     The annotation at the left margin of the source listing
     now includes the statement nesting level in effect at
     the end of that source line. The statement nesting level
     appears as a simple integer before the listing line
     number. The block of a function definition is level 1.
     Outside of function definitions, this field is blank.


Field Test Network kits are contained in one save set at:

DECC::DECC$KIT:[VAX]CC056.A

This native kit is a regular VMSINSTAL kit, which requires an LMF  pak
and  OpenVMS  V5.5-2 (or higher).  For users on pre-6.1 versions of VMS,
there is also a CRT kit which must  be  installed  to  get  the  newer
version of the libraries.  That kit is available at:

DECC::DECC$KIT:[VAX]AACRT060.A

For users who need compilers as old as V4.0 compiler savesets are available in
the same directory:

DECC::DECC$KIT:[VAX]CC040.A
DECC::DECC$KIT:[VAX]CC050.A
DECC::DECC$KIT:[VAX]CC052.A
DECC::DECC$KIT:[VAX]CC053.A
DECC::DECC$KIT:[VAX]CC055.A

    +---------------------------+ TM
    |   |   |   |   |   |   |   |
    | d | i | g | i | t | a | l |       Interoffice Memorandum
    |   |   |   |   |   |   |   |
    +---------------------------+


    To:  List                 Date:     1-MAY-1997
                              From:     The DEC C team
                              Group:    The Languages Group


The DEC C development group  announces  the  availability  of the SSB
V5.6-003 kits for DEC C for OpenVMS VAX.   This is a 32 bit native
compiler using a VCG backend.

This is primarily a maintenance release focused on bug fixes, usability and
message improvements, and providing V7.1 runtime library features on prior
versions of VMS. Please see the file SYS$LIBRARY:DECC$CRTL.README for specific
information on building applications that need to use new DEC C runtime library
features on older versions of OpenVMS.

  o  Message group C_TO_CXX. This message group contains an
     optional set of diagnostics that report the use of a
     number of C language constructs that are not compatible
     with, or have a slightly different meaning in, the C++
     language. This group may be enabled explicitly either on
     the command line (/WARN=ENABLE=C_TO_CXX) or by #pragma
     message enable (c_to_cxx).

  o  New diagnostics to detect simple expressions with side
     effects that are undefined in ANSI C. The C standard
     formalized defacto rules about side effects in terms of
     sequence points. An expression that modifies the same
     object more than once, or that modifies an object and
     fetches its value for a purpose other than computing the
     modified value, has undefined behavior unless there is
     an intervening sequence point. The compiler now warns
     about such expressions (only for objects that are simple
     declared variables).

  o  Source listings now include statement level nesting.
     The annotation at the left margin of the source listing
     now includes the statement nesting level in effect at
     the end of that source line. The statement nesting level
     appears as a simple integer before the listing line
     number. The block of a function definition is level 1.
     Outside of function definitions, this field is blank.


SSB Network kits are contained in one save set at:

DECC::DECC$KIT:[VAX]CC056.A

This native kit is a regular VMSINSTAL kit, which requires an LMF  pak
and  OpenVMS  V5.5-2 (or higher).  For users on pre-6.1 versions of VMS,
there is also a CRT kit which must  be  installed  to  get  the  newer
version of the libraries.  That kit is available at:

DECC::DECC$KIT:[VAX]AACRT060.A

For users who need compilers as old as V4.0 compiler savesets are available in
the same directory:

DECC::DECC$KIT:[VAX]CC040.A
DECC::DECC$KIT:[VAX]CC050.A
DECC::DECC$KIT:[VAX]CC052.A
DECC::DECC$KIT:[VAX]CC053.A
DECC::DECC$KIT:[VAX]CC055.A