reactos/sdk/lib/crt/math/i386/atan2.c


#include <math.h>

double atan2 (double __y, double __x);

/*
 * @implemented
 */
double atan2 (double __y, double __x)
{
  register double __val;
#ifdef __GNUC__
  __asm __volatile__
    ("fpatan\n\t"
     "fld %%st(0)"
     : "=t" (__val) : "0" (__x), "u" (__y));
#else
  __asm
  {
    fld __y
    fld __x
    fpatan
    fstp __val
  }
#endif /*__GNUC__*/
  return __val;
}
- Cleanup the /lib directory, by putting more 3rd-party libs in /3rdparty, and by creating a new directory called /sdk where libraries which emulate the ones in the WDK are present (Such as uuid, nt, crt, etc). - Removed lib/interlck and lib/string. - Removed math routines from lib/rtl. - Created a new library called libcntpr which is what NT/WDK use when compiling the kernel/system libraries. This is an "NT-Private" version of the CRT which is supposed to contain what we had in lib/string and lib/rtl. svn path=/trunk/; revision=26095 2007-03-14 20:24:57 +00:00
			`#include <math.h>`

			`double atan2 (double __y, double __x);`

			`/*`
			`* @implemented`
			`*/`
			`double atan2 (double __y, double __x)`
			`{`
			`register double __val;`
			`#ifdef __GNUC__`
			`__asm __volatile__`
			`("fpatan\n\t"`
			`"fld %%st(0)"`
			`: "=t" (__val) : "0" (__x), "u" (__y));`
			`#else`
- Implemented MSVC version of atan2 svn path=/trunk/; revision=42841 2009-08-22 10:07:25 +00:00			`__asm`
			`{`
			`fld __y`
			`fld __x`
			`fpatan`
			`fstp __val`
			`}`
- Cleanup the /lib directory, by putting more 3rd-party libs in /3rdparty, and by creating a new directory called /sdk where libraries which emulate the ones in the WDK are present (Such as uuid, nt, crt, etc). - Removed lib/interlck and lib/string. - Removed math routines from lib/rtl. - Created a new library called libcntpr which is what NT/WDK use when compiling the kernel/system libraries. This is an "NT-Private" version of the CRT which is supposed to contain what we had in lib/string and lib/rtl. svn path=/trunk/; revision=26095 2007-03-14 20:24:57 +00:00			`#endif /__GNUC__/`
			`return __val;`
			`}`