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#include "rb_lapack.h"
extern VOID zlascl_(char* type, integer* kl, integer* ku, doublereal* cfrom, doublereal* cto, integer* m, integer* n, doublecomplex* a, integer* lda, integer* info);
static VALUE
rblapack_zlascl(int argc, VALUE *argv, VALUE self){
VALUE rblapack_type;
char type;
VALUE rblapack_kl;
integer kl;
VALUE rblapack_ku;
integer ku;
VALUE rblapack_cfrom;
doublereal cfrom;
VALUE rblapack_cto;
doublereal cto;
VALUE rblapack_m;
integer m;
VALUE rblapack_a;
doublecomplex *a;
VALUE rblapack_info;
integer info;
VALUE rblapack_a_out__;
doublecomplex *a_out__;
integer lda;
integer n;
VALUE rblapack_options;
if (argc > 0 && TYPE(argv[argc-1]) == T_HASH) {
argc--;
rblapack_options = argv[argc];
if (rb_hash_aref(rblapack_options, sHelp) == Qtrue) {
printf("%s\n", "USAGE:\n info, a = NumRu::Lapack.zlascl( type, kl, ku, cfrom, cto, m, a, [:usage => usage, :help => help])\n\n\nFORTRAN MANUAL\n SUBROUTINE ZLASCL( TYPE, KL, KU, CFROM, CTO, M, N, A, LDA, INFO )\n\n* Purpose\n* =======\n*\n* ZLASCL multiplies the M by N complex matrix A by the real scalar\n* CTO/CFROM. This is done without over/underflow as long as the final\n* result CTO*A(I,J)/CFROM does not over/underflow. TYPE specifies that\n* A may be full, upper triangular, lower triangular, upper Hessenberg,\n* or banded.\n*\n\n* Arguments\n* =========\n*\n* TYPE (input) CHARACTER*1\n* TYPE indices the storage type of the input matrix.\n* = 'G': A is a full matrix.\n* = 'L': A is a lower triangular matrix.\n* = 'U': A is an upper triangular matrix.\n* = 'H': A is an upper Hessenberg matrix.\n* = 'B': A is a symmetric band matrix with lower bandwidth KL\n* and upper bandwidth KU and with the only the lower\n* half stored.\n* = 'Q': A is a symmetric band matrix with lower bandwidth KL\n* and upper bandwidth KU and with the only the upper\n* half stored.\n* = 'Z': A is a band matrix with lower bandwidth KL and upper\n* bandwidth KU. See ZGBTRF for storage details.\n*\n* KL (input) INTEGER\n* The lower bandwidth of A. Referenced only if TYPE = 'B',\n* 'Q' or 'Z'.\n*\n* KU (input) INTEGER\n* The upper bandwidth of A. Referenced only if TYPE = 'B',\n* 'Q' or 'Z'.\n*\n* CFROM (input) DOUBLE PRECISION\n* CTO (input) DOUBLE PRECISION\n* The matrix A is multiplied by CTO/CFROM. A(I,J) is computed\n* without over/underflow if the final result CTO*A(I,J)/CFROM\n* can be represented without over/underflow. CFROM must be\n* nonzero.\n*\n* M (input) INTEGER\n* The number of rows of the matrix A. M >= 0.\n*\n* N (input) INTEGER\n* The number of columns of the matrix A. N >= 0.\n*\n* A (input/output) COMPLEX*16 array, dimension (LDA,N)\n* The matrix to be multiplied by CTO/CFROM. See TYPE for the\n* storage type.\n*\n* LDA (input) INTEGER\n* The leading dimension of the array A. LDA >= max(1,M).\n*\n* INFO (output) INTEGER\n* 0 - successful exit\n* <0 - if INFO = -i, the i-th argument had an illegal value.\n*\n\n* =====================================================================\n*\n\n");
return Qnil;
}
if (rb_hash_aref(rblapack_options, sUsage) == Qtrue) {
printf("%s\n", "USAGE:\n info, a = NumRu::Lapack.zlascl( type, kl, ku, cfrom, cto, m, a, [:usage => usage, :help => help])\n");
return Qnil;
}
} else
rblapack_options = Qnil;
if (argc != 7 && argc != 7)
rb_raise(rb_eArgError,"wrong number of arguments (%d for 7)", argc);
rblapack_type = argv[0];
rblapack_kl = argv[1];
rblapack_ku = argv[2];
rblapack_cfrom = argv[3];
rblapack_cto = argv[4];
rblapack_m = argv[5];
rblapack_a = argv[6];
if (argc == 7) {
} else if (rblapack_options != Qnil) {
} else {
}
type = StringValueCStr(rblapack_type)[0];
ku = NUM2INT(rblapack_ku);
cto = NUM2DBL(rblapack_cto);
if (!NA_IsNArray(rblapack_a))
rb_raise(rb_eArgError, "a (7th argument) must be NArray");
if (NA_RANK(rblapack_a) != 2)
rb_raise(rb_eArgError, "rank of a (7th argument) must be %d", 2);
lda = NA_SHAPE0(rblapack_a);
n = NA_SHAPE1(rblapack_a);
if (NA_TYPE(rblapack_a) != NA_DCOMPLEX)
rblapack_a = na_change_type(rblapack_a, NA_DCOMPLEX);
a = NA_PTR_TYPE(rblapack_a, doublecomplex*);
kl = NUM2INT(rblapack_kl);
m = NUM2INT(rblapack_m);
cfrom = NUM2DBL(rblapack_cfrom);
{
na_shape_t shape[2];
shape[0] = lda;
shape[1] = n;
rblapack_a_out__ = na_make_object(NA_DCOMPLEX, 2, shape, cNArray);
}
a_out__ = NA_PTR_TYPE(rblapack_a_out__, doublecomplex*);
MEMCPY(a_out__, a, doublecomplex, NA_TOTAL(rblapack_a));
rblapack_a = rblapack_a_out__;
a = a_out__;
zlascl_(&type, &kl, &ku, &cfrom, &cto, &m, &n, a, &lda, &info);
rblapack_info = INT2NUM(info);
return rb_ary_new3(2, rblapack_info, rblapack_a);
}
void
init_lapack_zlascl(VALUE mLapack, VALUE sH, VALUE sU, VALUE zero){
sHelp = sH;
sUsage = sU;
rblapack_ZERO = zero;
rb_define_module_function(mLapack, "zlascl", rblapack_zlascl, -1);
}
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