diff options
Diffstat (limited to 'libm/double/ltstd.c')
-rw-r--r-- | libm/double/ltstd.c | 469 |
1 files changed, 0 insertions, 469 deletions
diff --git a/libm/double/ltstd.c b/libm/double/ltstd.c deleted file mode 100644 index f47fc3907..000000000 --- a/libm/double/ltstd.c +++ /dev/null @@ -1,469 +0,0 @@ -/* ltstd.c */ -/* Function test routine. - * Requires long double type check routine and double precision function - * under test. Indicate function name and range in #define statements - * below. Modifications for two argument functions and absolute - * rather than relative accuracy report are indicated. - */ - -#include <stdio.h> -/* int printf(), gets(), sscanf(); */ - -#include <math.h> -#ifdef ANSIPROT -int drand ( void ); -int dprec ( void ); -int ldprec ( void ); -double exp ( double ); -double sqrt ( double ); -double fabs ( double ); -double floor ( double ); -long double sqrtl ( long double ); -long double fabsl ( long double ); -#else -int drand(); -int dprec(), ldprec(); -double exp(), sqrt(), fabs(), floor(); -long double sqrtl(), fabsl(); -#endif - -#define RELERR 1 -#define ONEARG 0 -#define ONEINT 0 -#define TWOARG 0 -#define TWOINT 0 -#define THREEARG 1 -#define THREEINT 0 -#define FOURARG 0 -#define VECARG 0 -#define FOURANS 0 -#define TWOANS 0 -#define PROB 0 -#define EXPSCALE 0 -#define EXPSC2 0 -/* insert function to be tested here: */ -#define FUNC hyperg -double FUNC(); -#define QFUNC hypergl -long double QFUNC(); -/*extern int aiconf;*/ - -extern double MAXLOG; -extern double MINLOG; -extern double MAXNUM; -#define LTS 3.258096538 -/* insert low end and width of test interval */ -#define LOW 0.0 -#define WIDTH 30.0 -#define LOWA 0.0 -#define WIDTHA 30.0 -/* 1.073741824e9 */ -/* 2.147483648e9 */ -long double qone = 1.0L; -static long double q1, q2, q3, qa, qb, qc, qz, qy1, qy2, qy3, qy4; -static double y2, y3, y4, a, b, c, x, y, z, e; -static long double qe, qmax, qrmsa, qave; -volatile double v; -static long double lp[3], lq[3]; -static double dp[3], dq[3]; - -char strave[20]; -char strrms[20]; -char strmax[20]; -double underthresh = 2.22507385850720138309E-308; /* 2^-1022 */ - -void main() -{ -char s[80]; -int i, j, k; -long m, n; - -merror = 0; -ldprec(); /* set up coprocessor. */ -/*aiconf = -1;*/ /* configure Airy function */ -x = 1.0; -z = x * x; -qmax = 0.0L; -sprintf(strmax, "%.4Le", qmax ); -qrmsa = 0.0L; -qave = 0.0L; - -#if 1 -printf(" Start at random number #:" ); -gets( s ); -sscanf( s, "%ld", &n ); -printf("%ld\n", n ); -#else -n = 0; -#endif - -for( m=0; m<n; m++ ) - drand( &x ); -n = 0; -m = 0; -x = floor( x ); - -loop: - -for( i=0; i<500; i++ ) -{ -n++; -m++; - -#if ONEARG || TWOARG || THREEARG || FOURARG -/*ldprec();*/ /* set up floating point coprocessor */ -/* make random number in desired range */ -drand( &x ); -x = WIDTH * ( x - 1.0 ) + LOW; -#if EXPSCALE -x = exp(x); -drand( &a ); -a = 1.0e-13 * x * a; -if( x > 0.0 ) - x -= a; -else - x += a; -#endif -#if ONEINT -k = x; -x = k; -#endif -v = x; -q1 = v; /* double number to q type */ -#endif - -/* do again if second argument required */ - -#if TWOARG || THREEARG || FOURARG -drand( &a ); -a = WIDTHA * ( a - 1.0 ) + LOWA; -/*a /= 50.0;*/ -#if EXPSC2 -a = exp(a); -drand( &y2 ); -y2 = 1.0e-13 * y2 * a; -if( a > 0.0 ) - a -= y2; -else - a += y2; -#endif -#if TWOINT || THREEINT -k = a + 0.25; -a = k; -#endif -v = a; -qy4 = v; -#endif - -#if THREEARG || FOURARG -drand( &b ); -#if PROB -/* -b = b - 1.0; -b = a * b; -*/ -#if 1 -/* This makes b <= a, for bdtr. */ -b = (a - LOWA) * ( b - 1.0 ) + LOWA; -if( b > 1.0 && a > 1.0 ) - b -= 1.0; -else - { - a += 1.0; - k = a; - a = k; - v = a; - qy4 = v; - } -#else -b = WIDTHA * ( b - 1.0 ) + LOWA; -#endif - -/* Half-integer a and b */ -/* -a = 0.5*floor(2.0*a+1.0); -b = 0.5*floor(2.0*b+1.0); -*/ -v = a; -qy4 = v; -/*x = (a / (a+b));*/ - -#else -b = WIDTHA * ( b - 1.0 ) + LOWA; -#endif -#if THREEINT -j = b + 0.25; -b = j; -#endif -v = b; -qb = v; -#endif - -#if FOURARG -drand( &c ); -c = WIDTHA * ( c - 1.0 ) + LOWA; -/* for hyp2f1 to ensure c-a-b > -1 */ -/* -z = c-a-b; -if( z < -1.0 ) - c -= 1.6 * z; -*/ -v = c; -qc = v; -#endif - -#if VECARG -for( j=0; j<3; j++) - { - drand( &x ); - x = WIDTH * ( x - 1.0 ) + LOW; - v = x; - dp[j] = v; - q1 = v; /* double number to q type */ - lp[j] = q1; - drand( &x ); - x = WIDTH * ( x - 1.0 ) + LOW; - v = x; - dq[j] = v; - q1 = v; /* double number to q type */ - lq[j] = q1; - } -#endif /* VECARG */ - -/*printf("%.16E %.16E\n", a, x);*/ -/* compute function under test */ -/* Set to double precision */ -/*dprec();*/ -#if ONEARG -#if FOURANS -/*FUNC( x, &z, &y2, &y3, &y4 );*/ -FUNC( x, &y4, &y2, &y3, &z ); -#else -#if TWOANS -FUNC( x, &z, &y2 ); -/*FUNC( x, &y2, &z );*/ -#else -#if ONEINT -z = FUNC( k ); -#else -z = FUNC( x ); -#endif -#endif -#endif -#endif - -#if TWOARG -#if TWOINT -z = FUNC( k, x ); -/*z = FUNC( x, k );*/ -/*z = FUNC( a, x );*/ -#else -#if FOURANS -FUNC( a, x, &z, &y2, &y3, &y4 ); -#else -z = FUNC( a, x ); -#endif -#endif -#endif - -#if THREEARG -#if THREEINT -z = FUNC( j, k, x ); -#else -z = FUNC( a, b, x ); -#endif -#endif - -#if FOURARG -z = FUNC( a, b, c, x ); -#endif - -#if VECARG -z = FUNC( dp, dq ); -#endif - -q2 = z; -/* handle detected overflow */ -if( (z == MAXNUM) || (z == -MAXNUM) ) - { - printf("detected overflow "); -#if FOURARG - printf("%.4E %.4E %.4E %.4E %.4E %6ld \n", - a, b, c, x, y, n); -#else - printf("%.16E %.4E %.4E %6ld \n", x, a, z, n); -#endif - e = 0.0; - m -= 1; - goto endlup; - } -/* Skip high precision if underflow. */ -if( merror == UNDERFLOW ) - goto underf; - -/* compute high precision function */ -/*ldprec();*/ -#if ONEARG -#if FOURANS -/*qy4 = QFUNC( q1, qz, qy2, qy3 );*/ -qz = QFUNC( q1, qy4, qy2, qy3 ); -#else -#if TWOANS -qy2 = QFUNC( q1, qz ); -/*qz = QFUNC( q1, qy2 );*/ -#else -/* qy4 = 0.0L;*/ -/* qy4 = 1.0L;*/ -/*qz = QFUNC( qy4, q1 );*/ -/*qz = QFUNC( 1, q1 );*/ -qz = QFUNC( q1 ); /* normal */ -#endif -#endif -#endif - -#if TWOARG -#if TWOINT -qz = QFUNC( k, q1 ); -/*qz = QFUNC( q1, qy4 );*/ -/*qz = QFUNC( qy4, q1 );*/ -#else -#if FOURANS -qc = QFUNC( qy4, q1, qz, qy2, qy3 ); -#else -/*qy4 = 0.0L;;*/ -/*qy4 = 1.0L );*/ -qz = QFUNC( qy4, q1 ); -#endif -#endif -#endif - -#if THREEARG -#if THREEINT -qz = QFUNC( j, k, q1 ); -#else -qz = QFUNC( qy4, qb, q1 ); -#endif -#endif - -#if FOURARG -qz = QFUNC( qy4, qb, qc, q1 ); -#endif - -#if VECARG -qz = QFUNC( lp, lq ); -#endif - -y = qz; /* correct answer, in double precision */ - -/* get absolute error, in extended precision */ -qe = q2 - qz; -e = qe; /* the error in double precision */ - -/* handle function result equal to zero - or underflowed. */ -if( qz == 0.0L || merror == UNDERFLOW || fabs(z) < underthresh ) - { -underf: - merror = 0; -/* Don't bother to print anything. */ -#if 0 - printf("ans 0 "); -#if ONEARG - printf("%.8E %.8E %.4E %6ld \n", x, y, e, n); -#endif - -#if TWOARG -#if TWOINT - printf("%d %.8E %.8E %.4E %6ld \n", k, x, y, e, n); -#else - printf("%.6E %.6E %.6E %.4E %6ld \n", a, x, y, e, n); -#endif -#endif - -#if THREEARG - printf("%.6E %.6E %.6E %.6E %.4E %6ld \n", a, b, x, y, e, n); -#endif - -#if FOURARG - printf("%.4E %.4E %.4E %.4E %.4E %.4E %6ld \n", - a, b, c, x, y, e, n); -#endif -#endif /* 0 */ - qe = 0.0L; - e = 0.0; - m -= 1; - goto endlup; - } - -else - -/* relative error */ - -/* comment out the following two lines if absolute accuracy report */ - -#if RELERR - qe = qe / qz; -#else - { - q2 = qz; - q2 = fabsl(q2); - if( q2 > 1.0L ) - qe = qe / qz; - } -#endif - -qave = qave + qe; -/* absolute value of error */ -qe = fabs(qe); - -/* peak detect the error */ -if( qe > qmax ) - { - qmax = qe; - sprintf(strmax, "%.4Le", qmax ); -#if ONEARG - printf("%.8E %.8E %s %6ld \n", x, y, strmax, n); -#endif -#if TWOARG -#if TWOINT - printf("%d %.8E %.8E %s %6ld \n", k, x, y, strmax, n); -#else - printf("%.6E %.6E %.6E %s %6ld \n", a, x, y, strmax, n); -#endif -#endif -#if THREEARG - printf("%.6E %.6E %.6E %.6E %s %6ld \n", a, b, x, y, strmax, n); -#endif -#if FOURARG - printf("%.4E %.4E %.4E %.4E %.4E %s %6ld \n", - a, b, c, x, y, strmax, n); -#endif -#if VECARG - printf("%.8E %s %6ld \n", y, strmax, n); -#endif - } - -/* accumulate rms error */ -/* rmsa += e * e; accumulate the square of the error */ -q2 = qe * qe; -qrmsa = qrmsa + q2; -endlup: ; -/*ldprec();*/ -} - -/* report every 500 trials */ -/* rms = sqrt( rmsa/m ); */ -q1 = m; -q2 = qrmsa / q1; -q2 = sqrtl(q2); -sprintf(strrms, "%.4Le", q2 ); - -q2 = qave / q1; -sprintf(strave, "%.4Le", q2 ); -/* -printf("%6ld max = %s rms = %s ave = %s \n", m, strmax, strrms, strave ); -*/ -printf("%6ld max = %s rms = %s ave = %s \r", m, strmax, strrms, strave ); -fflush(stdout); -goto loop; -} |