------- Additional Comments From fsmith at mathworks dot com 2005-05-16 13:48 ------- Created an attachment (id=8901) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=8901&action=view) Minimal self-contained C program exhibiting problem
The answer provided by this program changes depending on whether or not optimizations are turned on. The reason for the difference is that the value b changes between 0 and -0 depending on the optimization level. Here is some sample output: % gcc emtst_asinh_standalone.c b = 0 atan(-7/b) = -1.5708 % gcc -O emtst_asinh_standalone.c b = -0 atan(-7/b) = 1.5708 Error happened! -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21607
