Eric Blake <[EMAIL PROTECTED]> wrote: > According to Eric Blake on 3/30/2008 4:03 PM: > | And just now, I tested cygwin with -O2, and got: > | > | ../../m4/tests/test-strtod.c:149: assertion failed > | ../../m4/tests/test-strtod.c:221: assertion failed > | > | which looks like rounding errors in computing 0.1. On further thought, > | that particular failure is due to x86 registers having more precision than > | memory, such that .1 (register) != .1 (memory). So I've also changed the > | test to use .5 instead of .1. > > Wow - gnulib's version of strtod really IS inaccurate. The buildbot is > still showing failures, since 5 * pow (10.0, -1) != 0.5. Any suggestions > on how to make this test pass? Would it be acceptable (for now) to just > check that the result is within 1 or 2 ULP of the correct answer?
Sounds good.
