Package: libc6.1 Version: 2.2.5-11.5 Architecture: Linux usf-cf-alpha-linux-1 2.2.20 #2 Wed Mar 20 19:57:28 EST 2002 alpha unknown Summary: Under some circumstances, invoking fesetenv() results in a floating point exception being raised.
Description: I have a piece of code which may result in underflows. I enclose the code in between fenv_t env; feholdexcept(&env); ... fesetenv(&env); Now the code in [...] is reading floating point numbers which may be very small and result in underflow floating point signals. However, since we have used feholdexcept() the signals should not be produced. And indeed they are not, until we reach fesetenv() where the signal is raised. If you read the manual of LIBC for fesetenv() The fesetenv function restores the floating point environ- ment from the object *envp. This object must be known to be valid, e.g., the result of a call to fegetenv or feholdexcept or equal to FE_DFL_ENV. This call does not raise exceptions. it says no exception should be raised. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]