mirror of
				https://sourceware.org/git/glibc.git
				synced 2025-10-24 13:33:08 +03:00 
			
		
		
		
	libm is now somewhat integrated with gcc's -ffinite-math-only option and lots of the wrapper functions have been optimized.
		
			
				
	
	
		
			35 lines
		
	
	
		
			850 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			35 lines
		
	
	
		
			850 B
		
	
	
	
		
			C
		
	
	
	
	
	
| /* Optimizations bu Ulrich Drepper <drepper@gmail.com>, 2011 */
 | |
| /*
 | |
|  * ====================================================
 | |
|  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 | |
|  *
 | |
|  * Developed at SunPro, a Sun Microsystems, Inc. business.
 | |
|  * Permission to use, copy, modify, and distribute this
 | |
|  * software is freely granted, provided that this notice
 | |
|  * is preserved.
 | |
|  * ====================================================
 | |
|  */
 | |
| 
 | |
| /*
 | |
|  * wrapper cosh(x)
 | |
|  */
 | |
| 
 | |
| #include <math.h>
 | |
| #include <math_private.h>
 | |
| 
 | |
| double
 | |
| __cosh (double x)
 | |
| {
 | |
| 	double z = __ieee754_cosh (x);
 | |
| 	if (__builtin_expect (!__finite (z), 0) && __finite (x)
 | |
| 	    && _LIB_VERSION != _IEEE_)
 | |
| 		return __kernel_standard (x, x, 5); /* cosh overflow */
 | |
| 
 | |
| 	return z;
 | |
| }
 | |
| weak_alias (__cosh, cosh)
 | |
| #ifdef NO_LONG_DOUBLE
 | |
| strong_alias (__cosh, __coshl)
 | |
| weak_alias (__cosh, coshl)
 | |
| #endif
 |