HP-UX C library (libc) - UNIX 2003 Standard Compliance

The C library, libc, implements a set of commonly used functions. It also provides the interface between the user program and the kernel.

Summary of Change

What’s New for Customers Migrating from HP-UX 11i v1 September 2005?

The libc library has been enhanced to comply with UNIX 2003 standards. As a result a number of APIs have been added, while some APIs have been modified. The new APIs are imaxabs(3), isblank(3), iswblank(3), llabs(3), atoll(3), unsetenv(3), setenv(3), imaxdiv(3), lldiv(3), _Exit(2), setegid(3), seteuid(3), strtof(3), posix_openpt(3), vfwscanf(3), vswscanf(3),vwscanf(3), wcstof(3) (only for Itanium®-based systems) and wcstold(3).

None of the modifications to existing APIs or structures will break compatibility except for the lconv structure.

What’s New for Customers Migrating from HP-UX 11i v2 June 2006?

See “What’s New for Customers Migrating from HP-UX 11i v1 September 2005?”

Impact

There are no impacts other than those previously listed.

Compatibility

The lconv structure defined in /usr/include/locale.h has been extended to conform to Unix 2003 standards. This change may have a compatibility impact on applications linked with archive libraries, dependent upon the locale version used. The localeconv(3C) manpage lists the new fields in the lconv structure.

Performance

There is no known impact on performance.

Documentation

For further information, see the following documentation:

Manpages:
standards(5), localeconv(3C), imaxabs(3), isblank(3), iswblank(3), llabs(3), atoll(3), unsetenv(3), setenv(3), imaxdiv(3), lldiv(3), _Exit(2), setegid(3), seteuid(3), strtof(3), posix_openpt(3), vfwscanf(3), vswscanf(3), vwscanf(3), wcstof(3), and wcstold(3).
Web pages:
http://www.opengroup.org/onlinepubs/009695399/basedefs/locale.h.html

Obsolescence

Not applicable.