The argument --debug-fpe to enable floating point exceptions currently only works on linux & SGI.
This command is useful for tracking down invalid floating point math, divide by zero, invalid arguments to math.h functions & operations resulting in NAN or INF, since you get a crash at the point in the code where the error is made. For example, it made finding this bug simple ([#22398 black pixels with HDR textures). http://markmail.org/message/vlkta3nzwmm3sywr This is the function in creator.c now. just needs mac/windows #ifdefs, probably not hard but needs testing by a developer who uses osx/win. --- static int set_fpe(int argc, char **argv, void *data) { #if defined(__sgi) || defined(__linux__) /* zealous but makes float issues a heck of a lot easier to find! * set breakpoints on fpe_handler */ signal(SIGFPE, fpe_handler); #if defined(__linux__) && defined(__GNUC__) feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW ); #endif #endif return 0; } -- - Campbell _______________________________________________ Bf-committers mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-committers
