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-rw-r--r--mdk-stage1/slang/slmath.c565
1 files changed, 0 insertions, 565 deletions
diff --git a/mdk-stage1/slang/slmath.c b/mdk-stage1/slang/slmath.c
deleted file mode 100644
index 1d61e14d3..000000000
--- a/mdk-stage1/slang/slmath.c
+++ /dev/null
@@ -1,565 +0,0 @@
-/* sin, cos, etc, for S-Lang */
-/* Copyright (c) 1992, 1999, 2001 John E. Davis
- * This file is part of the S-Lang library.
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Perl Artistic License.
- */
-
-#include "slinclud.h"
-
-#include <math.h>
-
-#include "slang.h"
-#include "_slang.h"
-
-#ifdef PI
-# undef PI
-#endif
-#define PI 3.14159265358979323846264338327950288
-
-#if defined(__unix__)
-#include <signal.h>
-#include <errno.h>
-
-#define SIGNAL SLsignal
-
-static void math_floating_point_exception (int sig)
-{
- sig = errno;
- if (SLang_Error == 0) SLang_Error = SL_FLOATING_EXCEPTION;
- (void) SIGNAL (SIGFPE, math_floating_point_exception);
- errno = sig;
-}
-#endif
-
-double SLmath_hypot (double x, double y)
-{
- double fr, fi, ratio;
-
- fr = fabs(x);
- fi = fabs(y);
-
- if (fr > fi)
- {
- ratio = y / x;
- x = fr * sqrt (1.0 + ratio * ratio);
- }
- else if (fi == 0.0) x = 0.0;
- else
- {
- ratio = x / y;
- x = fi * sqrt (1.0 + ratio * ratio);
- }
-
- return x;
-}
-
-/* usage here is a1 a2 ... an n x ==> a1x^n + a2 x ^(n - 1) + ... + an */
-static double math_poly (void)
-{
- int n;
- double xn = 1.0, sum = 0.0;
- double an, x;
-
- if ((SLang_pop_double(&x, NULL, NULL))
- || (SLang_pop_integer(&n))) return(0.0);
-
- while (n-- > 0)
- {
- if (SLang_pop_double(&an, NULL, NULL)) break;
- sum += an * xn;
- xn = xn * x;
- }
- return (double) sum;
-}
-
-static int double_math_op_result (int op, unsigned char a, unsigned char *b)
-{
- (void) op;
-
- if (a != SLANG_FLOAT_TYPE)
- *b = SLANG_DOUBLE_TYPE;
- else
- *b = a;
-
- return 1;
-}
-
-#ifdef HAVE_ASINH
-# define ASINH_FUN asinh
-#else
-# define ASINH_FUN my_asinh
-static double my_asinh (double x)
-{
- return log (x + sqrt (x*x + 1));
-}
-#endif
-#ifdef HAVE_ACOSH
-# define ACOSH_FUN acosh
-#else
-# define ACOSH_FUN my_acosh
-static double my_acosh (double x)
-{
- return log (x + sqrt(x*x - 1)); /* x >= 1 */
-}
-#endif
-#ifdef HAVE_ATANH
-# define ATANH_FUN atanh
-#else
-# define ATANH_FUN my_atanh
-static double my_atanh (double x)
-{
- return 0.5 * log ((1.0 + x)/(1.0 - x)); /* 0 <= x^2 < 1 */
-}
-#endif
-
-static int double_math_op (int op,
- unsigned char type, VOID_STAR ap, unsigned int na,
- VOID_STAR bp)
-{
- double *a, *b;
- unsigned int i;
- double (*fun) (double);
-
- (void) type;
- a = (double *) ap;
- b = (double *) bp;
-
- switch (op)
- {
- default:
- return 0;
-
- case SLMATH_SINH:
- fun = sinh;
- break;
- case SLMATH_COSH:
- fun = cosh;
- break;
- case SLMATH_TANH:
- fun = tanh;
- break;
- case SLMATH_TAN:
- fun = tan;
- break;
- case SLMATH_ASIN:
- fun = asin;
- break;
- case SLMATH_ACOS:
- fun = acos;
- break;
- case SLMATH_ATAN:
- fun = atan;
- break;
- case SLMATH_EXP:
- fun = exp;
- break;
- case SLMATH_LOG:
- fun = log;
- break;
- case SLMATH_LOG10:
- fun = log10;
- break;
- case SLMATH_SQRT:
- fun = sqrt;
- break;
- case SLMATH_SIN:
- fun = sin;
- break;
- case SLMATH_COS:
- fun = cos;
- break;
-
- case SLMATH_ASINH:
- fun = ASINH_FUN;
- break;
- case SLMATH_ATANH:
- fun = ATANH_FUN;
- break;
- case SLMATH_ACOSH:
- fun = ACOSH_FUN;
- break;
-
- case SLMATH_CONJ:
- case SLMATH_REAL:
- for (i = 0; i < na; i++)
- b[i] = a[i];
- return 1;
- case SLMATH_IMAG:
- for (i = 0; i < na; i++)
- b[i] = 0.0;
- return 1;
- }
-
- for (i = 0; i < na; i++)
- b[i] = (*fun) (a[i]);
-
- return 1;
-}
-
-static int float_math_op (int op,
- unsigned char type, VOID_STAR ap, unsigned int na,
- VOID_STAR bp)
-{
- float *a, *b;
- unsigned int i;
- double (*fun) (double);
-
- (void) type;
- a = (float *) ap;
- b = (float *) bp;
-
-
- switch (op)
- {
- default:
- return 0;
-
- case SLMATH_SINH:
- fun = sinh;
- break;
- case SLMATH_COSH:
- fun = cosh;
- break;
- case SLMATH_TANH:
- fun = tanh;
- break;
- case SLMATH_TAN:
- fun = tan;
- break;
- case SLMATH_ASIN:
- fun = asin;
- break;
- case SLMATH_ACOS:
- fun = acos;
- break;
- case SLMATH_ATAN:
- fun = atan;
- break;
- case SLMATH_EXP:
- fun = exp;
- break;
- case SLMATH_LOG:
- fun = log;
- break;
- case SLMATH_LOG10:
- fun = log10;
- break;
- case SLMATH_SQRT:
- fun = sqrt;
- break;
- case SLMATH_SIN:
- fun = sin;
- break;
- case SLMATH_COS:
- fun = cos;
- break;
-
- case SLMATH_ASINH:
- fun = ASINH_FUN;
- break;
- case SLMATH_ATANH:
- fun = ATANH_FUN;
- break;
- case SLMATH_ACOSH:
- fun = ACOSH_FUN;
- break;
-
- case SLMATH_CONJ:
- case SLMATH_REAL:
- for (i = 0; i < na; i++)
- b[i] = a[i];
- return 1;
- case SLMATH_IMAG:
- for (i = 0; i < na; i++)
- b[i] = 0.0;
- return 1;
- }
-
- for (i = 0; i < na; i++)
- b[i] = (float) (*fun) ((double) a[i]);
-
- return 1;
-}
-
-static int generic_math_op (int op,
- unsigned char type, VOID_STAR ap, unsigned int na,
- VOID_STAR bp)
-{
- double *b;
- unsigned int i;
- SLang_To_Double_Fun_Type to_double;
- double (*fun) (double);
- unsigned int da;
- char *a;
-
- if (NULL == (to_double = SLarith_get_to_double_fun (type, &da)))
- return 0;
-
- b = (double *) bp;
- a = (char *) ap;
-
- switch (op)
- {
- default:
- return 0;
-
- case SLMATH_SINH:
- fun = sinh;
- break;
- case SLMATH_COSH:
- fun = cosh;
- break;
- case SLMATH_TANH:
- fun = tanh;
- break;
- case SLMATH_TAN:
- fun = tan;
- break;
- case SLMATH_ASIN:
- fun = asin;
- break;
- case SLMATH_ACOS:
- fun = acos;
- break;
- case SLMATH_ATAN:
- fun = atan;
- break;
- case SLMATH_EXP:
- fun = exp;
- break;
- case SLMATH_LOG:
- fun = log;
- break;
- case SLMATH_LOG10:
- fun = log10;
- break;
- case SLMATH_SQRT:
- fun = sqrt;
- break;
- case SLMATH_SIN:
- fun = sin;
- break;
- case SLMATH_COS:
- fun = cos;
- break;
-
- case SLMATH_ASINH:
- fun = ASINH_FUN;
- break;
- case SLMATH_ATANH:
- fun = ATANH_FUN;
- break;
- case SLMATH_ACOSH:
- fun = ACOSH_FUN;
- break;
-
-
- case SLMATH_CONJ:
- case SLMATH_REAL:
- for (i = 0; i < na; i++)
- {
- b[i] = to_double((VOID_STAR) a);
- a += da;
- }
- return 1;
-
- case SLMATH_IMAG:
- for (i = 0; i < na; i++)
- b[i] = 0.0;
- return 1;
- }
-
- for (i = 0; i < na; i++)
- {
- b[i] = (*fun) (to_double ((VOID_STAR) a));
- a += da;
- }
-
- return 1;
-}
-
-#if SLANG_HAS_COMPLEX
-static int complex_math_op_result (int op, unsigned char a, unsigned char *b)
-{
- (void) a;
- switch (op)
- {
- default:
- *b = SLANG_COMPLEX_TYPE;
- break;
-
- case SLMATH_REAL:
- case SLMATH_IMAG:
- *b = SLANG_DOUBLE_TYPE;
- break;
- }
- return 1;
-}
-
-static int complex_math_op (int op,
- unsigned char type, VOID_STAR ap, unsigned int na,
- VOID_STAR bp)
-{
- double *a, *b;
- unsigned int i;
- unsigned int na2 = na * 2;
- double *(*fun) (double *, double *);
-
- (void) type;
- a = (double *) ap;
- b = (double *) bp;
-
- switch (op)
- {
- default:
- return 0;
-
- case SLMATH_REAL:
- for (i = 0; i < na; i++)
- b[i] = a[2 * i];
- return 1;
-
- case SLMATH_IMAG:
- for (i = 0; i < na; i++)
- b[i] = a[2 * i + 1];
- return 1;
-
- case SLMATH_CONJ:
- for (i = 0; i < na2; i += 2)
- {
- b[i] = a[i];
- b[i+1] = -a[i+1];
- }
- return 1;
-
- case SLMATH_ATANH:
- fun = SLcomplex_atanh;
- break;
- case SLMATH_ACOSH:
- fun = SLcomplex_acosh;
- break;
- case SLMATH_ASINH:
- fun = SLcomplex_asinh;
- break;
- case SLMATH_EXP:
- fun = SLcomplex_exp;
- break;
- case SLMATH_LOG:
- fun = SLcomplex_log;
- break;
- case SLMATH_LOG10:
- fun = SLcomplex_log10;
- break;
- case SLMATH_SQRT:
- fun = SLcomplex_sqrt;
- break;
- case SLMATH_SIN:
- fun = SLcomplex_sin;
- break;
- case SLMATH_COS:
- fun = SLcomplex_cos;
- break;
- case SLMATH_SINH:
- fun = SLcomplex_sinh;
- break;
- case SLMATH_COSH:
- fun = SLcomplex_cosh;
- break;
- case SLMATH_TANH:
- fun = SLcomplex_tanh;
- break;
- case SLMATH_TAN:
- fun = SLcomplex_tan;
- break;
- case SLMATH_ASIN:
- fun = SLcomplex_asin;
- break;
- case SLMATH_ACOS:
- fun = SLcomplex_acos;
- break;
- case SLMATH_ATAN:
- fun = SLcomplex_atan;
- break;
- }
-
- for (i = 0; i < na2; i += 2)
- (void) (*fun) (b + i, a + i);
-
- return 1;
-}
-#endif
-
-static SLang_DConstant_Type DConst_Table [] =
-{
- MAKE_DCONSTANT("E", 2.718281828459045),
- MAKE_DCONSTANT("PI", 3.14159265358979323846264338327950288),
- SLANG_END_DCONST_TABLE
-};
-
-static SLang_Math_Unary_Type SLmath_Table [] =
-{
- MAKE_MATH_UNARY("sinh", SLMATH_SINH),
- MAKE_MATH_UNARY("asinh", SLMATH_ASINH),
- MAKE_MATH_UNARY("cosh", SLMATH_COSH),
- MAKE_MATH_UNARY("acosh", SLMATH_ACOSH),
- MAKE_MATH_UNARY("tanh", SLMATH_TANH),
- MAKE_MATH_UNARY("atanh", SLMATH_ATANH),
- MAKE_MATH_UNARY("sin", SLMATH_SIN),
- MAKE_MATH_UNARY("cos", SLMATH_COS),
- MAKE_MATH_UNARY("tan", SLMATH_TAN),
- MAKE_MATH_UNARY("atan", SLMATH_ATAN),
- MAKE_MATH_UNARY("acos", SLMATH_ACOS),
- MAKE_MATH_UNARY("asin", SLMATH_ASIN),
- MAKE_MATH_UNARY("exp", SLMATH_EXP),
- MAKE_MATH_UNARY("log", SLMATH_LOG),
- MAKE_MATH_UNARY("sqrt", SLMATH_SQRT),
- MAKE_MATH_UNARY("log10", SLMATH_LOG10),
-#if SLANG_HAS_COMPLEX
- MAKE_MATH_UNARY("Real", SLMATH_REAL),
- MAKE_MATH_UNARY("Imag", SLMATH_IMAG),
- MAKE_MATH_UNARY("Conj", SLMATH_CONJ),
-#endif
- SLANG_END_MATH_UNARY_TABLE
-};
-
-static SLang_Intrin_Fun_Type SLang_Math_Table [] =
-{
- MAKE_INTRINSIC_0("polynom", math_poly, SLANG_DOUBLE_TYPE),
- SLANG_END_INTRIN_FUN_TABLE
-};
-
-int SLang_init_slmath (void)
-{
- unsigned char *int_types;
-
-#if defined(__unix__)
- (void) SIGNAL (SIGFPE, math_floating_point_exception);
-#endif
-
- int_types = _SLarith_Arith_Types;
-
- while (*int_types != SLANG_FLOAT_TYPE)
- {
- if (-1 == SLclass_add_math_op (*int_types, generic_math_op, double_math_op_result))
- return -1;
- int_types++;
- }
-
- if ((-1 == SLclass_add_math_op (SLANG_FLOAT_TYPE, float_math_op, double_math_op_result))
- || (-1 == SLclass_add_math_op (SLANG_DOUBLE_TYPE, double_math_op, double_math_op_result))
-#if SLANG_HAS_COMPLEX
- || (-1 == SLclass_add_math_op (SLANG_COMPLEX_TYPE, complex_math_op, complex_math_op_result))
-#endif
- )
- return -1;
-
- if ((-1 == SLadd_math_unary_table (SLmath_Table, "__SLMATH__"))
- || (-1 == SLadd_intrin_fun_table (SLang_Math_Table, NULL))
- || (-1 == SLadd_dconstant_table (DConst_Table, NULL)))
- return -1;
-
- return 0;
-}
-
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