reassign 27516 libc6-dev reassign 37154 libc6-dev thanks [Reassigning these two bugs to libc6-dev; please reassign them back, in the case that the misbehaviour is not in libc6-dev, which provides the inline function]. exp(inf) yields a wrong result (NaN) on i386, when compiled with -Ox, where x > 0. When compiled with gcc -ansi or gcc -std=c9x or gcc --D__NO_MATH_INLINES=1, you get the correct result 0.