Open System Services Library Calls Reference Manual (G06.28+, H06.05+)

OSS Library Calls (s) sqrt(3)
This function supports the special rounding modes of the IEEE floating-point standard. Guardian
declarations and procedures can be used to access the floating-point status and control register to
set and clear the special rounding modes. Refer to the Guardian Programmer’s Guide for infor-
mation about those declarations and procedures.
Remember the following rules when using any special floating-point mode:
• Do not assume that functions such as printf( ) or tanh( ) behave correctly if you call
them after setting a non-default operating mode (such as rounding toward zero). Unless
a function is documented as tolerating such modes, you should restore the default operat-
ing mode before calling the function.
• The exception bits of the status register stay set until they are explicitly cleared.
527187-007 Hewlett-Packard Company 6−69