コード例 #1
0
ファイル: cgo_dgetrs.go プロジェクト: jvlmdr/lin-go
func dgetrsHelper(trans bool, n, nrhs int, a []float64, lda int, ipiv []C.integer, b []float64, ldb int) error {
	var (
		trans_ = transChar(trans)
		n_     = C.integer(n)
		nrhs_  = C.integer(nrhs)
		a_     = ptrFloat64(a)
		lda_   = C.integer(lda)
		ipiv_  = ptrInt(ipiv)
		b_     = ptrFloat64(b)
		ldb_   = C.integer(ldb)
	)
	var info_ C.integer

	C.dgetrs_(&trans_, &n_, &nrhs_, a_, &lda_, ipiv_, b_, &ldb_, &info_)

	info := int(info_)
	switch {
	case info < 0:
		return errInvalidArg(-info)
	case info == 0:
		return nil
	default:
		panic(errUnknown(info))
	}
}
コード例 #2
0
ファイル: cgo_double.go プロジェクト: jvlmdr/linalg
// dgetrs_(char *trans, int *n, int *nrhs, double *A, int *lda,
//    int *ipiv, double *B, int *ldb, int *info);
func dgetrs(trans string, N, Nrhs int, A []float64, lda int, ipiv []int32,
	B []float64, ldb int) int {
	ctrans := C.CString(trans)
	defer C.free(unsafe.Pointer(ctrans))
	var info int = 0
	C.dgetrs_(ctrans, (*C.int)(unsafe.Pointer(&N)), (*C.int)(unsafe.Pointer(&Nrhs)),
		(*C.double)(unsafe.Pointer(&A[0])), (*C.int)(unsafe.Pointer(&lda)),
		(*C.int)(unsafe.Pointer(&ipiv[0])),
		(*C.double)(unsafe.Pointer(&B[0])), (*C.int)(unsafe.Pointer(&ldb)),
		(*C.int)(unsafe.Pointer(&info)))
	return info
}