HP-UX 11i December 2001 Release Notes

Programming
Libraries
Chapter 13
222
Other Issues
Various serious and critical defects were repaired.
Forward and backward compatibility are maintained. Use of new features in this release
may break backward compatibility.
Invoking chatr on some binaries built with an older linker may emit the following
message: chatr(error): dl_header_ext.size != sizeof(dl_header_ext). Please
update your version of the linker/chatr. This message should be regarded as a
warning rather than an error. chatr operation will be successful in spite of the warning.
Changes to libm
The fesetround() and fehold() functions in fenv.h have been upgraded to the
latest ISO C9x specification. Previously the functions returned nonzero to indicate
success and zero to indicate failure; now they return zero to indicate success and nonzero
to indicate failure.
Any code that depended on the return value will need to change. For example:
if (!fesetround(FE_UPWARD))
{/* deal with failure to set rounding direction */}
could be changed to:
if(fesetrod(FE_UPWARD))
{/* deal with failure to set rounding direction */}
Previous code that depended on the return value are not compatible beginning with the
11.0 May 1999 Extension Pack.