> On Fri, 2005-11-04 at 10:19 +0000, dileep reddy wrote: > > Hi, > > As my subject says, is that supported? I am writing > > a kernel module which extensively uses floating point > > operations. One of the books I went through, mentioned > > that all C types are supported in kernel. But which > > format character is used to print those floting point > > values. When I use %f in printk(), it is printing %f > > as it as on the screen. > > Can anyone suggest me a way? Ming Zhang wrote: > u can read other books. like linux kernel development or linux device > driver, they will tell u that do not do float computation in kernel. It is possible to use the floating point unit in kernel, but only in special circumstances. Look to the MMX-using code to see how it's done. Ordinarily, the floating point C types, and operations, are not supported in kernel code and if you try them and they seem to work, what's really happening is corrupting user-space data. That's a bad thing. -- Jamie - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
