10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24  */
  25 /*
  26  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29 
  30 #if defined(ELFOBJ)
  31 #pragma weak expm1l = __expm1l
  32 #endif
  33 #if !defined(__sparc)
  34 #error Unsupported architecture
  35 #endif
  36 
  37 /*
  38  * expm1l(x)
  39  *
  40  * Table driven method
  41  * Written by K.C. Ng, June 1995.
  42  * Algorithm :
  43  *      1. expm1(x) = x if x<2**-114
  44  *      2. if |x| <= 0.0625 = 1/16, use approximation
  45  *              expm1(x) = x + x*P/(2-P)
  46  * where
  47  *      P = x - z*(P1+z*(P2+z*(P3+z*(P4+z*(P5+z*P6+z*P7))))), z = x*x;
  48  * (this formula is derived from
  49  *      2-P+x = R = x*(exp(x)+1)/(exp(x)-1) ~ 2 + x*x/6 - x^4/360 + ...)
  50  *
  51  * P1 =   1.66666666666666666666666666666638500528074603030e-0001
  52  * P2 =  -2.77777777777777777777777759668391122822266551158e-0003

  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24  */
  25 /*
  26  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29 

  30 #pragma weak expm1l = __expm1l

  31 #if !defined(__sparc)
  32 #error Unsupported architecture
  33 #endif
  34 
  35 /*
  36  * expm1l(x)
  37  *
  38  * Table driven method
  39  * Written by K.C. Ng, June 1995.
  40  * Algorithm :
  41  *      1. expm1(x) = x if x<2**-114
  42  *      2. if |x| <= 0.0625 = 1/16, use approximation
  43  *              expm1(x) = x + x*P/(2-P)
  44  * where
  45  *      P = x - z*(P1+z*(P2+z*(P3+z*(P4+z*(P5+z*P6+z*P7))))), z = x*x;
  46  * (this formula is derived from
  47  *      2-P+x = R = x*(exp(x)+1)/(exp(x)-1) ~ 2 + x*x/6 - x^4/360 + ...)
  48  *
  49  * P1 =   1.66666666666666666666666666666638500528074603030e-0001
  50  * P2 =  -2.77777777777777777777777759668391122822266551158e-0003