#include <isl/mat.h>

struct isl_mat {
	int ref;

	struct isl_ctx *ctx;

#define ISL_MAT_BORROWED		(1 << 0)
	unsigned flags;

	unsigned n_row;
	unsigned n_col;

	isl_int **row;

	/* actual size of the rows in memory; n_col <= max_col */
	unsigned max_col;

	struct isl_blk block;
};

__isl_give isl_mat *isl_mat_sub_alloc(__isl_keep isl_mat *mat,
	unsigned first_row, unsigned n_row, unsigned first_col, unsigned n_col);
__isl_give isl_mat *isl_mat_sub_alloc6(isl_ctx *ctx, isl_int **row,
	unsigned first_row, unsigned n_row, unsigned first_col, unsigned n_col);
void isl_mat_sub_copy(struct isl_ctx *ctx, isl_int **dst, isl_int **src,
	unsigned n_row, unsigned dst_col, unsigned src_col, unsigned n_col);
void isl_mat_sub_neg(struct isl_ctx *ctx, isl_int **dst, isl_int **src,
	unsigned n_row, unsigned dst_col, unsigned src_col, unsigned n_col);
__isl_give isl_mat *isl_mat_diag(isl_ctx *ctx, unsigned n_row, isl_int d);