critical impact:

mbstate_t - incompatible data type (CrCh116)

Problem description

The mbstate_t data type definition on Tru64 UNIX and HP-UX is different.

The mbstate_t structure is an opaque data structure. On HP-UX, mbstate_t is defined only if _XOPEN_SOURCE is defined to be equal to 500. If your code accesses any member of this structure, it is not portable, and cannot be ported to HP-UX. This structure is mostly used by the identified restartable versions of I18N Application Programming Interfaces(APIs).

Identifiers

mbrlen	mbsinit	mbstate_t	wcsrtombs
mbrtowc	mbsrtowcs	wcrtomb

See also

• Background information on internationalization and localization impacts
• mbrlen(3)
• mbrtowc(3)
• mbsinit(3)
• mbsrtowcs(3)
• wcrtomb(3)
• wcsrtombs(3)

Solution description

Review and modify your code.

The APIs that use mbstate_t are functionally equivalent to the nonrestartable versions in locales that do not use shift-state encoding. The only advantage to using some of these restartable APIs is that additional error codes might be returned in some cases. Neither Tru64 UNIX nor HP-UX provide any locales that use shift-state encoding.

If your code uses the mbstate_t structure, you must do the following:

• Define _XOPEN_SOURCE=500.
• Initialize the structure to zero before porting to HP-UX.

New behavior

See also

• mbrlen(3C)
• mbrtowc(3C)
• mbsinit(3C)
• mbsrtowcs(3C)
• wcrtomb(3C)
• wcsrtombs(3C)
• Migrating I18N and L10N Applications and Data from Tru64 UNIX to HP-UX

Problem summary