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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/dswap.c | |
parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
download | ydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/cblas/dswap.c')
-rw-r--r-- | contrib/libs/cblas/dswap.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/contrib/libs/cblas/dswap.c b/contrib/libs/cblas/dswap.c new file mode 100644 index 0000000000..27a303e607 --- /dev/null +++ b/contrib/libs/cblas/dswap.c @@ -0,0 +1,114 @@ +/* dswap.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 dswap_(integer *n, doublereal *dx, integer *incx, + doublereal *dy, integer *incy) +{ + /* System generated locals */ + integer i__1; + + /* Local variables */ + integer i__, m, ix, iy, mp1; + doublereal dtemp; + +/* .. Scalar Arguments .. */ +/* .. */ +/* .. Array Arguments .. */ +/* .. */ + +/* Purpose */ +/* ======= */ + +/* interchanges two vectors. */ +/* uses unrolled loops for increments equal one. */ +/* jack dongarra, linpack, 3/11/78. */ +/* modified 12/3/93, array(1) declarations changed to array(*) */ + + +/* .. Local Scalars .. */ +/* .. */ +/* .. Intrinsic Functions .. */ +/* .. */ + /* Parameter adjustments */ + --dy; + --dx; + + /* Function Body */ + if (*n <= 0) { + return 0; + } + if (*incx == 1 && *incy == 1) { + goto L20; + } + +/* code for unequal increments or equal increments not equal */ +/* to 1 */ + + ix = 1; + iy = 1; + if (*incx < 0) { + ix = (-(*n) + 1) * *incx + 1; + } + if (*incy < 0) { + iy = (-(*n) + 1) * *incy + 1; + } + i__1 = *n; + for (i__ = 1; i__ <= i__1; ++i__) { + dtemp = dx[ix]; + dx[ix] = dy[iy]; + dy[iy] = dtemp; + ix += *incx; + iy += *incy; +/* L10: */ + } + return 0; + +/* code for both increments equal to 1 */ + + +/* clean-up loop */ + +L20: + m = *n % 3; + if (m == 0) { + goto L40; + } + i__1 = m; + for (i__ = 1; i__ <= i__1; ++i__) { + dtemp = dx[i__]; + dx[i__] = dy[i__]; + dy[i__] = dtemp; +/* L30: */ + } + if (*n < 3) { + return 0; + } +L40: + mp1 = m + 1; + i__1 = *n; + for (i__ = mp1; i__ <= i__1; i__ += 3) { + dtemp = dx[i__]; + dx[i__] = dy[i__]; + dy[i__] = dtemp; + dtemp = dx[i__ + 1]; + dx[i__ + 1] = dy[i__ + 1]; + dy[i__ + 1] = dtemp; + dtemp = dx[i__ + 2]; + dx[i__ + 2] = dy[i__ + 2]; + dy[i__ + 2] = dtemp; +/* L50: */ + } + return 0; +} /* dswap_ */ |