gp_matrix.h File Reference

Two dimensional vector. More...

#include <core/gp_compiler.h>
#include <utils/gp_vec.h>

Go to the source code of this file.

Functions
static void *	gp_matrix_new (size_t cols, size_t rows, size_t unit)
	Allocates a matrix.
static size_t	gp_matrix_idx (size_t rows, size_t col, size_t row)
	Returns an index into the vector that holds the matrix data.
static void *	gp_matrix_cols_ins (void *self, size_t rows, size_t col, size_t len)
	Inserts len columns at the offset col into the matrix.
static void *	gp_matrix_cols_del (void *self, size_t rows, size_t col, size_t len)
	Deletes len columns at the offset col from the matrix.
void *	gp_matrix_rows_ins (void *self, size_t cols, size_t rows, size_t row, size_t len)
	Inserts len rowss at the offset row into the matrix.
void *	gp_matrix_rows_del (void *self, size_t cols, size_t rows, size_t row, size_t len)
	Deletes len rows at the offset col from the matrix.
static void	gp_matrix_free (void *self)
	Frees the matrix.

Detailed Description

Two dimensional vector.

Implements very simple matrix abstraction on the top of a gp_vec.

The matrix is stored in an linear array one row after another.

The caller is supposed to maintain number of columns and rows and the library provides is a set of high level functions to reallocate and reshuffle the matrix elements.

Definition in file gp_matrix.h.

Function Documentation

gp_matrix_cols_del()

static void * gp_matrix_cols_del ( void *  self, size_t  rows, size_t  col, size_t  len  )

inlinestatic

Deletes len columns at the offset col from the matrix.

Parameters

self	A matrix.
rows	Number of rows.
col	Column index to delete the columns from.
len	How many columns we should delete.

Returns

Returns a pointer to the matrix data.

Definition at line 80 of file gp_matrix.h.

References gp_vec_del().

gp_matrix_cols_ins()

static void * gp_matrix_cols_ins ( void *  self, size_t  rows, size_t  col, size_t  len  )

inlinestatic

Inserts len columns at the offset col into the matrix.

Parameters

self	A matrix.
rows	Number of rows.
col	Column index to insert the columns into.
len	How many columns we should insert.

Returns

Returns a pointer to the matrix data.

Definition at line 65 of file gp_matrix.h.

References gp_vec_ins().

gp_matrix_free()

static void gp_matrix_free ( void *  self )

inlinestatic

Frees the matrix.

Parameters

self

A matrix.

Definition at line 116 of file gp_matrix.h.

References gp_vec_free().

gp_matrix_idx()

static size_t gp_matrix_idx ( size_t  rows, size_t  col, size_t  row  )

inlinestatic

Returns an index into the vector that holds the matrix data.

Parameters

rows	Number of rows.
col	Column index.
row	Row index.

Returns

Returns an index into a vector.

Definition at line 50 of file gp_matrix.h.

gp_matrix_new()

static void * gp_matrix_new ( size_t  cols, size_t  rows, size_t  unit  )

inlinestatic

Allocates a matrix.

Parameters

cols	Number of columns.
rows	Number of rows.
unit	A size of a matrix element.

Returns

Returns a pointer to the matrix data.

Definition at line 36 of file gp_matrix.h.

References gp_vec_new().

gp_matrix_rows_del()

void * gp_matrix_rows_del	(	void *	self,
		size_t	cols,
		size_t	rows,
		size_t	row,
		size_t	len
	)

Deletes len rows at the offset col from the matrix.

Parameters

self	A matrix.
cols	Number of columns.
rows	Number of rows.
row	Row index to delete the rows from.
len	How many rows we should delete.

Returns

Returns a pointer to the matrix data.

gp_matrix_rows_ins()

void * gp_matrix_rows_ins	(	void *	self,
		size_t	cols,
		size_t	rows,
		size_t	row,
		size_t	len
	)

Inserts len rowss at the offset row into the matrix.

Parameters

self	A matrix.
cols	Number of columns.
rows	Number of rows.
row	Row index to delete the rows from.
len	How many rows we should insert.

Returns

Returns a pointer to the matrix data.