freebsd-dev/lib/msun/src/w_cabsf.c

/*
 * cabsf() wrapper for hypotf().
 *
 * Written by J.T. Conklin, <jtc@wimsey.com>
 * Placed into the Public Domain, 1994.
 */

#ifndef lint
static const char rcsid[] =
  "$FreeBSD$";
#endif /* not lint */

#include <complex.h>
#include <math.h>
#include "math_private.h"

float
cabsf(float complex z)
{

	return hypotf(crealf(z), cimagf(z));
}
J.T. Conklin's latest version of the Sun math library. -- Begin comments from J.T. Conklin: The most significant improvement is the addition of "float" versions of the math functions that take float arguments, return floats, and do all operations in floating point. This doesn't help (performance) much on the i386, but they are still nice to have. The float versions were orginally done by Cygnus' Ian Taylor when fdlibm was integrated into the libm we support for embedded systems. I gave Ian a copy of my libm as a starting point since I had already fixed a lot of bugs & problems in Sun's original code. After he was done, I cleaned it up a bit and integrated the changes back into my libm. -- End comments Reviewed by: jkh Submitted by: jtc 1994-08-19 09:40:01 +00:00			`/*`
			`* cabsf() wrapper for hypotf().`
Remove trailing whitespace. 1995-05-30 05:51:47 +00:00			`*`
J.T. Conklin's latest version of the Sun math library. -- Begin comments from J.T. Conklin: The most significant improvement is the addition of "float" versions of the math functions that take float arguments, return floats, and do all operations in floating point. This doesn't help (performance) much on the i386, but they are still nice to have. The float versions were orginally done by Cygnus' Ian Taylor when fdlibm was integrated into the libm we support for embedded systems. I gave Ian a copy of my libm as a starting point since I had already fixed a lot of bugs & problems in Sun's original code. After he was done, I cleaned it up a bit and integrated the changes back into my libm. -- End comments Reviewed by: jkh Submitted by: jtc 1994-08-19 09:40:01 +00:00			`* Written by J.T. Conklin, <jtc@wimsey.com>`
			`* Placed into the Public Domain, 1994.`
			`*/`

Added skeleton <complex.h> (aligned with the POSIX.1-200x), mostly to fix the "-nostdinc WARNS=X" breakage caused by broken prototypes for cabs() and cabsl() in <math.h>. Reimplemented cabs() and cabsl() using new complex numbers types and moved prototypes from <math.h> to <complex.h>. 2001-06-13 15:16:30 +00:00			`#ifndef lint`
			`static const char rcsid[] =`
			`"$FreeBSD$";`
			`#endif /* not lint */`
J.T. Conklin's latest version of the Sun math library. -- Begin comments from J.T. Conklin: The most significant improvement is the addition of "float" versions of the math functions that take float arguments, return floats, and do all operations in floating point. This doesn't help (performance) much on the i386, but they are still nice to have. The float versions were orginally done by Cygnus' Ian Taylor when fdlibm was integrated into the libm we support for embedded systems. I gave Ian a copy of my libm as a starting point since I had already fixed a lot of bugs & problems in Sun's original code. After he was done, I cleaned it up a bit and integrated the changes back into my libm. -- End comments Reviewed by: jkh Submitted by: jtc 1994-08-19 09:40:01 +00:00
Added skeleton <complex.h> (aligned with the POSIX.1-200x), mostly to fix the "-nostdinc WARNS=X" breakage caused by broken prototypes for cabs() and cabsl() in <math.h>. Reimplemented cabs() and cabsl() using new complex numbers types and moved prototypes from <math.h> to <complex.h>. 2001-06-13 15:16:30 +00:00			`#include <complex.h>`
			`#include <math.h>`
			`#include "math_private.h"`
J.T. Conklin's latest version of the Sun math library. -- Begin comments from J.T. Conklin: The most significant improvement is the addition of "float" versions of the math functions that take float arguments, return floats, and do all operations in floating point. This doesn't help (performance) much on the i386, but they are still nice to have. The float versions were orginally done by Cygnus' Ian Taylor when fdlibm was integrated into the libm we support for embedded systems. I gave Ian a copy of my libm as a starting point since I had already fixed a lot of bugs & problems in Sun's original code. After he was done, I cleaned it up a bit and integrated the changes back into my libm. -- End comments Reviewed by: jkh Submitted by: jtc 1994-08-19 09:40:01 +00:00
			`float`
msun: Rewrite function definitions with identifier lists This syntax is removed in C2x proposal N2432. Reviewed by: pfg MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D35771 2022-07-12 05:17:47 +00:00			`cabsf(float complex z)`
J.T. Conklin's latest version of the Sun math library. -- Begin comments from J.T. Conklin: The most significant improvement is the addition of "float" versions of the math functions that take float arguments, return floats, and do all operations in floating point. This doesn't help (performance) much on the i386, but they are still nice to have. The float versions were orginally done by Cygnus' Ian Taylor when fdlibm was integrated into the libm we support for embedded systems. I gave Ian a copy of my libm as a starting point since I had already fixed a lot of bugs & problems in Sun's original code. After he was done, I cleaned it up a bit and integrated the changes back into my libm. -- End comments Reviewed by: jkh Submitted by: jtc 1994-08-19 09:40:01 +00:00			`{`
Added skeleton <complex.h> (aligned with the POSIX.1-200x), mostly to fix the "-nostdinc WARNS=X" breakage caused by broken prototypes for cabs() and cabsl() in <math.h>. Reimplemented cabs() and cabsl() using new complex numbers types and moved prototypes from <math.h> to <complex.h>. 2001-06-13 15:16:30 +00:00
			`return hypotf(crealf(z), cimagf(z));`
J.T. Conklin's latest version of the Sun math library. -- Begin comments from J.T. Conklin: The most significant improvement is the addition of "float" versions of the math functions that take float arguments, return floats, and do all operations in floating point. This doesn't help (performance) much on the i386, but they are still nice to have. The float versions were orginally done by Cygnus' Ian Taylor when fdlibm was integrated into the libm we support for embedded systems. I gave Ian a copy of my libm as a starting point since I had already fixed a lot of bugs & problems in Sun's original code. After he was done, I cleaned it up a bit and integrated the changes back into my libm. -- End comments Reviewed by: jkh Submitted by: jtc 1994-08-19 09:40:01 +00:00			`}`