[multiple changes]
Fri May 28 22:20:03 1999 Anthony Green <green@cygnus.com> * java/lang/fdlibm.h: Don't use __uint32_t. Include mprec.h. * java/lang/e_log.c: Don't use __uint32_t. 1999-05-27 Eric Christopher <echristo@cygnus.com> * configure: Rebuilt * configure.in: Fixed ISO C9X and namespace collision with __uint32_t * acconfig.h: Rebuilt * include/config.h.in: Rebuilt * java/lang/mprec.h, java/lang/e_acos.c, java/lang/e_asin.c, java/lang/e_atan2.c, java/lang/e_exp.c, java/lang/e_fmod.c, e_log.c, java/lang/e_pow.c, java/lang/e_rem_pio2.c, java/lang/e_remainder.c, java/lang/e_sqrt.c, java/lang/fdlibm.h, k_tan.c, java/lang/mprec.h, java/lang/s_atan.c, java/lang/s_ceil.c, java/lang/s_copysign.c, java/lang/s_fabs.c, s_floor.c, java/lang/s_rint.c, java/lang/sf_rint.c: Fixed ISO C9X and namespace collision with __uint32_t From-SVN: r27729
This commit is contained in:
Tom Tromey
parent
fe574d5d92
commit
0d16618c58
31 changed files with 614 additions and 526 deletions
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@ -6,7 +6,7 @@
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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@ -14,12 +14,12 @@
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/*
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* __kernel_rem_pio2(x,y,e0,nx,prec,ipio2)
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* double x[],y[]; int e0,nx,prec; int ipio2[];
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*
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* __kernel_rem_pio2 return the last three digits of N with
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*
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* __kernel_rem_pio2 return the last three digits of N with
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* y = x - N*pi/2
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* so that |y| < pi/2.
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*
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* The method is to compute the integer (mod 8) and fraction parts of
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* The method is to compute the integer (mod 8) and fraction parts of
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* (2/pi)*x without doing the full multiplication. In general we
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* skip the part of the product that are known to be a huge integer (
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* more accurately, = 0 mod 8 ). Thus the number of operations are
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@ -28,10 +28,10 @@
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* (2/pi) is represented by an array of 24-bit integers in ipio2[].
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*
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* Input parameters:
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* x[] The input value (must be positive) is broken into nx
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* x[] The input value (must be positive) is broken into nx
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* pieces of 24-bit integers in double precision format.
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* x[i] will be the i-th 24 bit of x. The scaled exponent
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* of x[0] is given in input parameter e0 (i.e., x[0]*2^e0
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* x[i] will be the i-th 24 bit of x. The scaled exponent
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* of x[0] is given in input parameter e0 (i.e., x[0]*2^e0
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* match x's up to 24 bits.
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*
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* Example of breaking a double positive z into x[0]+x[1]+x[2]:
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@ -68,8 +68,8 @@
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* 3 113 bits (quad)
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*
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* ipio2[]
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* integer array, contains the (24*i)-th to (24*i+23)-th
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* bit of 2/pi after binary point. The corresponding
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* integer array, contains the (24*i)-th to (24*i+23)-th
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* bit of 2/pi after binary point. The corresponding
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* floating value is
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*
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* ipio2[i] * 2^(-24(i+1)).
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@ -84,8 +84,8 @@
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* in the computation. The recommended value is 2,3,4,
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* 6 for single, double, extended,and quad.
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*
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* jz local integer variable indicating the number of
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* terms of ipio2[] used.
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* jz local integer variable indicating the number of
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* terms of ipio2[] used.
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*
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* jx nx - 1
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*
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@ -105,9 +105,9 @@
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* exponent for q[i] would be q0-24*i.
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*
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* PIo2[] double precision array, obtained by cutting pi/2
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* into 24 bits chunks.
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* into 24 bits chunks.
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*
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* f[] ipio2[] in floating point
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* f[] ipio2[] in floating point
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*
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* iq[] integer array by breaking up q[] in 24-bits chunk.
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*
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@ -121,9 +121,9 @@
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/*
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* Constants:
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* The hexadecimal values are the intended ones for the following
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* constants. The decimal values may be used, provided that the
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* compiler will convert from decimal to binary accurately enough
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* The hexadecimal values are the intended ones for the following
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* constants. The decimal values may be used, provided that the
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* compiler will convert from decimal to binary accurately enough
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* to produce the hexadecimal values shown.
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*/
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@ -134,7 +134,7 @@
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#ifdef __STDC__
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static const int init_jk[] = {2,3,4,6}; /* initial value for jk */
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#else
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static int init_jk[] = {2,3,4,6};
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static int init_jk[] = {2,3,4,6};
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#endif
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#ifdef __STDC__
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@ -153,9 +153,9 @@ static double PIo2[] = {
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};
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#ifdef __STDC__
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static const double
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static const double
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#else
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static double
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static double
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#endif
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zero = 0.0,
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one = 1.0,
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@ -163,13 +163,13 @@ two24 = 1.67772160000000000000e+07, /* 0x41700000, 0x00000000 */
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twon24 = 5.96046447753906250000e-08; /* 0x3E700000, 0x00000000 */
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#ifdef __STDC__
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int __kernel_rem_pio2(double *x, double *y, int e0, int nx, int prec, const __int32_t *ipio2)
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int __kernel_rem_pio2(double *x, double *y, int e0, int nx, int prec, const int32_t *ipio2)
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#else
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int __kernel_rem_pio2(x,y,e0,nx,prec,ipio2)
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double x[], y[]; int e0,nx,prec; __int32_t ipio2[];
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int __kernel_rem_pio2(x,y,e0,nx,prec,ipio2)
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double x[], y[]; int e0,nx,prec; int32_t ipio2[];
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#endif
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{
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__int32_t jz,jx,jv,jp,jk,carry,n,iq[20],i,j,k,m,q0,ih;
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int32_t jz,jx,jv,jp,jk,carry,n,iq[20],i,j,k,m,q0,ih;
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double z,fw,f[20],fq[20],q[20];
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/* initialize jk*/
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@ -194,22 +194,22 @@ twon24 = 5.96046447753906250000e-08; /* 0x3E700000, 0x00000000 */
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recompute:
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/* distill q[] into iq[] reversingly */
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for(i=0,j=jz,z=q[jz];j>0;i++,j--) {
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fw = (double)((__int32_t)(twon24* z));
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iq[i] = (__int32_t)(z-two24*fw);
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fw = (double)((int32_t)(twon24* z));
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iq[i] = (int32_t)(z-two24*fw);
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z = q[j-1]+fw;
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}
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/* compute n */
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z = scalbn(z,(int)q0); /* actual value of z */
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z -= 8.0*floor(z*0.125); /* trim off integer >= 8 */
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n = (__int32_t) z;
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n = (int32_t) z;
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z -= (double)n;
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ih = 0;
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if(q0>0) { /* need iq[jz-1] to determine n */
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i = (iq[jz-1]>>(24-q0)); n += i;
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iq[jz-1] -= i<<(24-q0);
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ih = iq[jz-1]>>(23-q0);
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}
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}
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else if(q0==0) ih = iq[jz-1]>>23;
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else if(z>=0.5) ih=2;
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@ -260,12 +260,12 @@ recompute:
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while(iq[jz]==0) { jz--; q0-=24;}
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} else { /* break z into 24-bit if necessary */
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z = scalbn(z,-(int)q0);
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if(z>=two24) {
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fw = (double)((__int32_t)(twon24*z));
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iq[jz] = (__int32_t)(z-two24*fw);
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if(z>=two24) {
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fw = (double)((int32_t)(twon24*z));
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iq[jz] = (int32_t)(z-two24*fw);
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jz += 1; q0 += 24;
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iq[jz] = (__int32_t) fw;
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} else iq[jz] = (__int32_t) z ;
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iq[jz] = (int32_t) fw;
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} else iq[jz] = (int32_t) z ;
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}
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/* convert integer "bit" chunk to floating-point value */
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@ -285,29 +285,29 @@ recompute:
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case 0:
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fw = 0.0;
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for (i=jz;i>=0;i--) fw += fq[i];
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y[0] = (ih==0)? fw: -fw;
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y[0] = (ih==0)? fw: -fw;
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break;
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case 1:
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case 2:
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fw = 0.0;
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for (i=jz;i>=0;i--) fw += fq[i];
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y[0] = (ih==0)? fw: -fw;
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for (i=jz;i>=0;i--) fw += fq[i];
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y[0] = (ih==0)? fw: -fw;
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fw = fq[0]-fw;
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for (i=1;i<=jz;i++) fw += fq[i];
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y[1] = (ih==0)? fw: -fw;
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y[1] = (ih==0)? fw: -fw;
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break;
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case 3: /* painful */
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for (i=jz;i>0;i--) {
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fw = fq[i-1]+fq[i];
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fw = fq[i-1]+fq[i];
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fq[i] += fq[i-1]-fw;
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fq[i-1] = fw;
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}
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for (i=jz;i>1;i--) {
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fw = fq[i-1]+fq[i];
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fw = fq[i-1]+fq[i];
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fq[i] += fq[i-1]-fw;
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fq[i-1] = fw;
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}
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for (fw=0.0,i=jz;i>=2;i--) fw += fq[i];
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for (fw=0.0,i=jz;i>=2;i--) fw += fq[i];
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if(ih==0) {
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y[0] = fq[0]; y[1] = fq[1]; y[2] = fw;
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} else {
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