#include "blaswrap.h" #include "f2c.h" /* Subroutine */ int slacpy_(char *uplo, integer *m, integer *n, real *a, integer *lda, real *b, integer *ldb) { /* -- LAPACK auxiliary routine (version 3.0) -- Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd., Courant Institute, Argonne National Lab, and Rice University February 29, 1992 Purpose ======= SLACPY copies all or part of a two-dimensional matrix A to another matrix B. Arguments ========= UPLO (input) CHARACTER*1 Specifies the part of the matrix A to be copied to B. = 'U': Upper triangular part = 'L': Lower triangular part Otherwise: All of the matrix A M (input) INTEGER The number of rows of the matrix A. M >= 0. N (input) INTEGER The number of columns of the matrix A. N >= 0. A (input) REAL array, dimension (LDA,N) The m by n matrix A. If UPLO = 'U', only the upper triangle or trapezoid is accessed; if UPLO = 'L', only the lower triangle or trapezoid is accessed. LDA (input) INTEGER The leading dimension of the array A. LDA >= max(1,M). B (output) REAL array, dimension (LDB,N) On exit, B = A in the locations specified by UPLO. LDB (input) INTEGER The leading dimension of the array B. LDB >= max(1,M). ===================================================================== Parameter adjustments */ /* System generated locals */ integer a_dim1, a_offset, b_dim1, b_offset, i__1, i__2; /* Local variables */ static integer i__, j; extern logical lsame_(char *, char *); #define a_ref(a_1,a_2) a[(a_2)*a_dim1 + a_1] #define b_ref(a_1,a_2) b[(a_2)*b_dim1 + a_1] a_dim1 = *lda; a_offset = 1 + a_dim1 * 1; a -= a_offset; b_dim1 = *ldb; b_offset = 1 + b_dim1 * 1; b -= b_offset; /* Function Body */ if (lsame_(uplo, "U")) { i__1 = *n; for (j = 1; j <= i__1; ++j) { i__2 = min(j,*m); for (i__ = 1; i__ <= i__2; ++i__) { b_ref(i__, j) = a_ref(i__, j); /* L10: */ } /* L20: */ } } else if (lsame_(uplo, "L")) { i__1 = *n; for (j = 1; j <= i__1; ++j) { i__2 = *m; for (i__ = j; i__ <= i__2; ++i__) { b_ref(i__, j) = a_ref(i__, j); /* L30: */ } /* L40: */ } } else { i__1 = *n; for (j = 1; j <= i__1; ++j) { i__2 = *m; for (i__ = 1; i__ <= i__2; ++i__) { b_ref(i__, j) = a_ref(i__, j); /* L50: */ } /* L60: */ } } return 0; /* End of SLACPY */ } /* slacpy_ */ #undef b_ref #undef a_ref .