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author | shmel1k <shmel1k@ydb.tech> | 2022-09-02 12:44:59 +0300 |
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committer | shmel1k <shmel1k@ydb.tech> | 2022-09-02 12:44:59 +0300 |
commit | 90d450f74722da7859d6f510a869f6c6908fd12f (patch) | |
tree | 538c718dedc76cdfe37ad6d01ff250dd930d9278 /contrib/libs/cblas/drotmg.c | |
parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
download | ydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/cblas/drotmg.c')
-rw-r--r-- | contrib/libs/cblas/drotmg.c | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/contrib/libs/cblas/drotmg.c b/contrib/libs/cblas/drotmg.c new file mode 100644 index 0000000000..94694170bd --- /dev/null +++ b/contrib/libs/cblas/drotmg.c @@ -0,0 +1,293 @@ +/* drotmg.f -- translated by f2c (version 20061008). + You must link the resulting object file with libf2c: + on Microsoft Windows system, link with libf2c.lib; + on Linux or Unix systems, link with .../path/to/libf2c.a -lm + or, if you install libf2c.a in a standard place, with -lf2c -lm + -- in that order, at the end of the command line, as in + cc *.o -lf2c -lm + Source for libf2c is in /netlib/f2c/libf2c.zip, e.g., + + http://www.netlib.org/f2c/libf2c.zip +*/ + +#include "f2c.h" +#include "blaswrap.h" + +/* Subroutine */ int drotmg_(doublereal *dd1, doublereal *dd2, doublereal * + dx1, doublereal *dy1, doublereal *dparam) +{ + /* Initialized data */ + + static doublereal zero = 0.; + static doublereal one = 1.; + static doublereal two = 2.; + static doublereal gam = 4096.; + static doublereal gamsq = 16777216.; + static doublereal rgamsq = 5.9604645e-8; + + /* Format strings */ + static char fmt_120[] = ""; + static char fmt_150[] = ""; + static char fmt_180[] = ""; + static char fmt_210[] = ""; + + /* System generated locals */ + doublereal d__1; + + /* Local variables */ + doublereal du, dp1, dp2, dq1, dq2, dh11, dh12, dh21, dh22; + integer igo; + doublereal dflag, dtemp; + + /* Assigned format variables */ + static char *igo_fmt; + +/* .. Scalar Arguments .. */ +/* .. */ +/* .. Array Arguments .. */ +/* .. */ + +/* Purpose */ +/* ======= */ + +/* CONSTRUCT THE MODIFIED GIVENS TRANSFORMATION MATRIX H WHICH ZEROS */ +/* THE SECOND COMPONENT OF THE 2-VECTOR (DSQRT(DD1)*DX1,DSQRT(DD2)* */ +/* DY2)**T. */ +/* WITH DPARAM(1)=DFLAG, H HAS ONE OF THE FOLLOWING FORMS.. */ + +/* DFLAG=-1.D0 DFLAG=0.D0 DFLAG=1.D0 DFLAG=-2.D0 */ + +/* (DH11 DH12) (1.D0 DH12) (DH11 1.D0) (1.D0 0.D0) */ +/* H=( ) ( ) ( ) ( ) */ +/* (DH21 DH22), (DH21 1.D0), (-1.D0 DH22), (0.D0 1.D0). */ +/* LOCATIONS 2-4 OF DPARAM CONTAIN DH11, DH21, DH12, AND DH22 */ +/* RESPECTIVELY. (VALUES OF 1.D0, -1.D0, OR 0.D0 IMPLIED BY THE */ +/* VALUE OF DPARAM(1) ARE NOT STORED IN DPARAM.) */ + +/* THE VALUES OF GAMSQ AND RGAMSQ SET IN THE DATA STATEMENT MAY BE */ +/* INEXACT. THIS IS OK AS THEY ARE ONLY USED FOR TESTING THE SIZE */ +/* OF DD1 AND DD2. ALL ACTUAL SCALING OF DATA IS DONE USING GAM. */ + + +/* Arguments */ +/* ========= */ + +/* DD1 (input/output) DOUBLE PRECISION */ + +/* DD2 (input/output) DOUBLE PRECISION */ + +/* DX1 (input/output) DOUBLE PRECISION */ + +/* DY1 (input) DOUBLE PRECISION */ + +/* DPARAM (input/output) DOUBLE PRECISION array, dimension 5 */ +/* DPARAM(1)=DFLAG */ +/* DPARAM(2)=DH11 */ +/* DPARAM(3)=DH21 */ +/* DPARAM(4)=DH12 */ +/* DPARAM(5)=DH22 */ + +/* ===================================================================== */ + +/* .. Local Scalars .. */ +/* .. */ +/* .. Intrinsic Functions .. */ +/* .. */ +/* .. Data statements .. */ + + /* Parameter adjustments */ + --dparam; + + /* Function Body */ +/* .. */ + if (! (*dd1 < zero)) { + goto L10; + } +/* GO ZERO-H-D-AND-DX1.. */ + goto L60; +L10: +/* CASE-DD1-NONNEGATIVE */ + dp2 = *dd2 * *dy1; + if (! (dp2 == zero)) { + goto L20; + } + dflag = -two; + goto L260; +/* REGULAR-CASE.. */ +L20: + dp1 = *dd1 * *dx1; + dq2 = dp2 * *dy1; + dq1 = dp1 * *dx1; + + if (! (abs(dq1) > abs(dq2))) { + goto L40; + } + dh21 = -(*dy1) / *dx1; + dh12 = dp2 / dp1; + + du = one - dh12 * dh21; + + if (! (du <= zero)) { + goto L30; + } +/* GO ZERO-H-D-AND-DX1.. */ + goto L60; +L30: + dflag = zero; + *dd1 /= du; + *dd2 /= du; + *dx1 *= du; +/* GO SCALE-CHECK.. */ + goto L100; +L40: + if (! (dq2 < zero)) { + goto L50; + } +/* GO ZERO-H-D-AND-DX1.. */ + goto L60; +L50: + dflag = one; + dh11 = dp1 / dp2; + dh22 = *dx1 / *dy1; + du = one + dh11 * dh22; + dtemp = *dd2 / du; + *dd2 = *dd1 / du; + *dd1 = dtemp; + *dx1 = *dy1 * du; +/* GO SCALE-CHECK */ + goto L100; +/* PROCEDURE..ZERO-H-D-AND-DX1.. */ +L60: + dflag = -one; + dh11 = zero; + dh12 = zero; + dh21 = zero; + dh22 = zero; + + *dd1 = zero; + *dd2 = zero; + *dx1 = zero; +/* RETURN.. */ + goto L220; +/* PROCEDURE..FIX-H.. */ +L70: + if (! (dflag >= zero)) { + goto L90; + } + + if (! (dflag == zero)) { + goto L80; + } + dh11 = one; + dh22 = one; + dflag = -one; + goto L90; +L80: + dh21 = -one; + dh12 = one; + dflag = -one; +L90: + switch (igo) { + case 0: goto L120; + case 1: goto L150; + case 2: goto L180; + case 3: goto L210; + } +/* PROCEDURE..SCALE-CHECK */ +L100: +L110: + if (! (*dd1 <= rgamsq)) { + goto L130; + } + if (*dd1 == zero) { + goto L160; + } + igo = 0; + igo_fmt = fmt_120; +/* FIX-H.. */ + goto L70; +L120: +/* Computing 2nd power */ + d__1 = gam; + *dd1 *= d__1 * d__1; + *dx1 /= gam; + dh11 /= gam; + dh12 /= gam; + goto L110; +L130: +L140: + if (! (*dd1 >= gamsq)) { + goto L160; + } + igo = 1; + igo_fmt = fmt_150; +/* FIX-H.. */ + goto L70; +L150: +/* Computing 2nd power */ + d__1 = gam; + *dd1 /= d__1 * d__1; + *dx1 *= gam; + dh11 *= gam; + dh12 *= gam; + goto L140; +L160: +L170: + if (! (abs(*dd2) <= rgamsq)) { + goto L190; + } + if (*dd2 == zero) { + goto L220; + } + igo = 2; + igo_fmt = fmt_180; +/* FIX-H.. */ + goto L70; +L180: +/* Computing 2nd power */ + d__1 = gam; + *dd2 *= d__1 * d__1; + dh21 /= gam; + dh22 /= gam; + goto L170; +L190: +L200: + if (! (abs(*dd2) >= gamsq)) { + goto L220; + } + igo = 3; + igo_fmt = fmt_210; +/* FIX-H.. */ + goto L70; +L210: +/* Computing 2nd power */ + d__1 = gam; + *dd2 /= d__1 * d__1; + dh21 *= gam; + dh22 *= gam; + goto L200; +L220: + if (dflag < 0.) { + goto L250; + } else if (dflag == 0) { + goto L230; + } else { + goto L240; + } +L230: + dparam[3] = dh21; + dparam[4] = dh12; + goto L260; +L240: + dparam[2] = dh11; + dparam[5] = dh22; + goto L260; +L250: + dparam[2] = dh11; + dparam[3] = dh21; + dparam[4] = dh12; + dparam[5] = dh22; +L260: + dparam[1] = dflag; + return 0; +} /* drotmg_ */ |