"atomic bomb" commit. Reorganized OpenCV directory structure

3rdparty/lapack/saxpy.c

@@ -0,0 +1,94 @@
+#include "clapack.h"
+
+/* Subroutine */ int saxpy_(integer *n, real *sa, real *sx, integer *incx, 
+	real *sy, integer *incy)
+{
+    /* System generated locals */
+    integer i__1;
+
+    /* Local variables */
+    integer i__, m, ix, iy, mp1;
+
+/*     .. Scalar Arguments .. */
+/*     .. */
+/*     .. Array Arguments .. */
+/*     .. */
+
+/*  Purpose */
+/*  ======= */
+
+/*     SAXPY constant times a vector plus a vector. */
+/*     uses unrolled loop for increments equal to one. */
+/*     jack dongarra, linpack, 3/11/78. */
+/*     modified 12/3/93, array(1) declarations changed to array(*) */
+
+
+/*     .. Local Scalars .. */
+/*     .. */
+/*     .. Intrinsic Functions .. */
+/*     .. */
+    /* Parameter adjustments */
+    --sy;
+    --sx;
+
+    /* Function Body */
+    if (*n <= 0) {
+	return 0;
+    }
+    if (*sa == 0.f) {
+	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__) {
+	sy[iy] += *sa * sx[ix];
+	ix += *incx;
+	iy += *incy;
+/* L10: */
+    }
+    return 0;
+
+/*        code for both increments equal to 1 */
+
+
+/*        clean-up loop */
+
+L20:
+    m = *n % 4;
+    if (m == 0) {
+	goto L40;
+    }
+    i__1 = m;
+    for (i__ = 1; i__ <= i__1; ++i__) {
+	sy[i__] += *sa * sx[i__];
+/* L30: */
+    }
+    if (*n < 4) {
+	return 0;
+    }
+L40:
+    mp1 = m + 1;
+    i__1 = *n;
+    for (i__ = mp1; i__ <= i__1; i__ += 4) {
+	sy[i__] += *sa * sx[i__];
+	sy[i__ + 1] += *sa * sx[i__ + 1];
+	sy[i__ + 2] += *sa * sx[i__ + 2];
+	sy[i__ + 3] += *sa * sx[i__ + 3];
+/* L50: */
+    }
+    return 0;
+} /* saxpy_ */