+/*
+ * Copyright 2008-2009 Katholieke Universiteit Leuven
+ *
+ * Use of this software is governed by the GNU LGPLv2.1 license
+ *
+ * Written by Sven Verdoolaege, K.U.Leuven, Departement
+ * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
+ */
+
#include "isl_dim.h"
#include "isl_seq.h"
#include "isl_mat.h"
if (pivot < 0) {
isl_int_clear(a);
isl_int_clear(b);
- goto error;
+ isl_assert(mat->ctx, pivot >= 0, goto error);
}
pivot += row;
if (pivot != row)
return mat;
}
+__isl_give isl_mat *isl_mat_insert_cols(__isl_take isl_mat *mat,
+ unsigned col, unsigned n)
+{
+ isl_mat *ext;
+
+ if (!mat)
+ return NULL;
+ if (n == 0)
+ return mat;
+
+ ext = isl_mat_alloc(mat->ctx, mat->n_row, mat->n_col + n);
+ if (!ext)
+ goto error;
+
+ isl_mat_sub_copy(mat->ctx, ext->row, mat->row, mat->n_row, 0, 0, col);
+ isl_mat_sub_copy(mat->ctx, ext->row, mat->row, mat->n_row,
+ col + n, col, mat->n_col - col);
+
+ isl_mat_free(mat);
+ return ext;
+error:
+ isl_mat_free(mat);
+ return NULL;
+}
+
void isl_mat_col_submul(struct isl_mat *mat,
int dst_col, isl_int f, int src_col)
{
isl_mat_free(bot);
return NULL;
}
+
+int isl_mat_is_equal(__isl_keep isl_mat *mat1, __isl_keep isl_mat *mat2)
+{
+ int i;
+
+ if (!mat1 || !mat2)
+ return -1;
+
+ if (mat1->n_row != mat2->n_row)
+ return 0;
+
+ if (mat1->n_col != mat2->n_col)
+ return 0;
+
+ for (i = 0; i < mat1->n_row; ++i)
+ if (!isl_seq_eq(mat1->row[i], mat2->row[i], mat1->n_col))
+ return 0;
+
+ return 1;
+}
+
+__isl_give isl_mat *isl_mat_from_row_vec(__isl_take isl_vec *vec)
+{
+ struct isl_mat *mat;
+
+ if (!vec)
+ return NULL;
+ mat = isl_mat_alloc(vec->ctx, 1, vec->size);
+ if (!mat)
+ goto error;
+
+ isl_seq_cpy(mat->row[0], vec->el, vec->size);
+
+ isl_vec_free(vec);
+ return mat;
+error:
+ isl_vec_free(vec);
+ return NULL;
+}
+
+__isl_give isl_mat *isl_mat_vec_concat(__isl_take isl_mat *top,
+ __isl_take isl_vec *bot)
+{
+ return isl_mat_concat(top, isl_mat_from_row_vec(bot));
+}
+
+__isl_give isl_mat *isl_mat_move_cols(__isl_take isl_mat *mat,
+ unsigned dst_col, unsigned src_col, unsigned n)
+{
+ isl_mat *res;
+
+ if (!mat)
+ return NULL;
+ if (n == 0 || dst_col == src_col)
+ return mat;
+
+ res = isl_mat_alloc(mat->ctx, mat->n_row, mat->n_col);
+ if (!res)
+ goto error;
+
+ if (dst_col < src_col) {
+ isl_mat_sub_copy(res->ctx, res->row, mat->row, mat->n_row,
+ 0, 0, dst_col);
+ isl_mat_sub_copy(res->ctx, res->row, mat->row, mat->n_row,
+ dst_col, src_col, n);
+ isl_mat_sub_copy(res->ctx, res->row, mat->row, mat->n_row,
+ dst_col + n, dst_col, src_col - dst_col);
+ isl_mat_sub_copy(res->ctx, res->row, mat->row, mat->n_row,
+ src_col + n, src_col + n,
+ res->n_col - src_col - n);
+ } else {
+ isl_mat_sub_copy(res->ctx, res->row, mat->row, mat->n_row,
+ 0, 0, src_col);
+ isl_mat_sub_copy(res->ctx, res->row, mat->row, mat->n_row,
+ src_col, src_col + n, dst_col - src_col);
+ isl_mat_sub_copy(res->ctx, res->row, mat->row, mat->n_row,
+ dst_col, src_col, n);
+ isl_mat_sub_copy(res->ctx, res->row, mat->row, mat->n_row,
+ dst_col + n, dst_col + n,
+ res->n_col - dst_col - n);
+ }
+ isl_mat_free(mat);
+
+ return res;
+error:
+ isl_mat_free(mat);
+ return NULL;
+}