[STDCXX-830] [HP aCC 6.15] many remarks 4298 and 4299 from _localedef.h

• Type: Sub-task
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 4.2.0
• Fix Version/s: 4.2.1
• Component/s: Build and Installation

Environment

aCC: HP C/aC++ B3910B A.06.16 [Nov 26 2007]

• Assignee: Martin Sebor
• Reporter: Martin Sebor
• Created: 07/Apr/08 19:06
• Updated: 17/Apr/08 09:35
• Resolved: 07/Apr/08 19:30

Description

When compiled with HP aCC 6 with the +w option on, the library header _localedef.h produces a bunch of "64-bit conversion" remarks:

aCC -c    -mt -I$(TOPDIR)/include -I$(BUILDDIR)/include  -AA  +O2  +DD64 +w \
    +W392 +W655 +W684 +W818 +W819 +W849 +W2193 +W2236 +W2261 +W2340 \
    +W2401 +W2487 +W4227 +W4229 +W4231 +W4235 +W4237 +W4249 +W4255 \
    +W4272 +W4284 +W4285 +W4286 +W4296 +W4297 +W3348  +Z
    +Z $(TOPDIR)/src/codecvt.cpp
"$(TOPDIR)/include/loc/_localedef.h", line 160: remark #4298-D: addition result could be truncated before cast to bigger sized type
          return (wtolower_off - wtoupper_off) / sizeof (__rw_upper_elm);
                               ^

"$(TOPDIR)/include/loc/_localedef.h", line 164: remark #4298-D: addition result could be truncated before cast to bigger sized type
          return (wmask_off - wtolower_off) / sizeof (__rw_lower_elm);
                            ^

"$(TOPDIR)/include/loc/_localedef.h", line 168: remark #4298-D: addition result could be truncated before cast to bigger sized type
          return charmap_off - codeset_off;
                             ^

"$(TOPDIR)/include/loc/_localedef.h", line 172: remark #4298-D: addition result could be truncated before cast to bigger sized type
          return wtoupper_off - charmap_off;
                              ^

"$(TOPDIR)/include/loc/_localedef.h", line 122: remark #4299-D: multiply result could be truncated before cast to bigger sized type
          return *(_RWSTD_ARRAY_ELM (wchar_t, wchar_off, off * 2));
                                                             ^

"$(TOPDIR)/include/loc/_localedef.h", line 128: remark #4298-D: addition result could be truncated before cast to bigger sized type
          return *(_RWSTD_ARRAY_ELM (wchar_t, wchar_off, off * 2 + 1));
                                                                 ^

There are a total of 19 of them in the whole library build:

$ cat hpux-11.31-ia64-acc-6.16-12D-642031-log | grep "include/loc/_localedef.h\", line 160: remark #429[89]" | wc -l
19