#include "fc_prehdrs.h"
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "fciconv.h"
#include "fcintl.h"
#include "mem.h"
#include "rand.h"
#include "string_vector.h"
#include "bitvector.h"

Functions
void	dbv_init (struct dbv *pdbv, int bits)

void	dbv_resize (struct dbv *pdbv, int bits)

void	dbv_free (struct dbv *pdbv)

int	dbv_bits (struct dbv *pdbv)

bool	dbv_isset (const struct dbv *pdbv, int bit)

bool	dbv_isset_any (const struct dbv *pdbv)

void	dbv_set (struct dbv *pdbv, int bit)

void	dbv_set_all (struct dbv *pdbv)

void	dbv_clr (struct dbv *pdbv, int bit)

void	dbv_clr_all (struct dbv *pdbv)

bool	dbv_are_equal (const struct dbv pdbv1, const struct dbv pdbv2)

bool	bv_match_dbv (const struct dbv match, const unsigned char src)

void	dbv_copy (struct dbv dest, const struct dbv src)

void	dbv_to_bv (unsigned char dest, const struct dbv src)

void	bv_to_dbv (struct dbv dest, const unsigned char src)

void	dbv_debug (struct dbv *pdbv)

bool	bv_check_mask (const unsigned char vec1, const unsigned char vec2, size_t size1, size_t size2)

bool	bv_are_equal (const unsigned char vec1, const unsigned char vec2, size_t size1, size_t size2)

void	bv_set_all_from (unsigned char vec_to, const unsigned char vec_from, size_t size_to, size_t size_from)

void	bv_clr_all_from (unsigned char vec_to, const unsigned char vec_from, size_t size_to, size_t size_from)

Function Documentation

◆ bv_are_equal()

bool bv_are_equal	(	const unsigned char *	vec1,
		const unsigned char *	vec2,
		size_t	size1,
		size_t	size2
	)

Compare elements of two bitvectors. Both vectors are expected to have same number of elements, i.e. , size1 must be equal to size2.

Definition at line 293 of file bitvector.c.

Referenced by dbv_are_equal().

◆ bv_check_mask()

bool bv_check_mask	(	const unsigned char *	vec1,
		const unsigned char *	vec2,
		size_t	size1,
		size_t	size2
	)

Return whether two vectors: vec1 and vec2 have common bits. I.e. (vec1 & vec2) != 0.

Don't call this function directly, use BV_CHECK_MASK macro instead. Don't call this function with two different bitvectors.

Definition at line 271 of file bitvector.c.

Referenced by dbv_isset_any().

◆ bv_clr_all_from()

void bv_clr_all_from	(	unsigned char *	vec_to,
		const unsigned char *	vec_from,
		size_t	size_to,
		size_t	size_from
	)

Clear everything that is true in vec_from in vec_to. Stuff that already is false in vec_to aren't touched.

Both vectors are expected to have same number of elements, i.e. , size1 must be equal to size2.

Don't call this function directly, use BV_CLR_ALL_FROM macro instead.

Definition at line 342 of file bitvector.c.

◆ bv_match_dbv()

bool bv_match_dbv	(	const struct dbv *	match,
		const unsigned char *	src
	)

Is content of static bitvector same as that of dynamic one. Comparison size is taken from the dynamic one.

Definition at line 197 of file bitvector.c.

Referenced by update_player_tile_knowledge().

◆ bv_set_all_from()

void bv_set_all_from	(	unsigned char *	vec_to,
		const unsigned char *	vec_from,
		size_t	size_to,
		size_t	size_from
	)

Set everything that is true in vec_from in vec_to. Stuff that already is true in vec_to aren't touched. (Bitwise inclusive OR assignment)

Both vectors are expected to have same number of elements, i.e. , size1 must be equal to size2.

Don't call this function directly, use BV_SET_ALL_FROM macro instead.

Definition at line 320 of file bitvector.c.

◆ bv_to_dbv()

void bv_to_dbv	(	struct dbv *	dest,
		const unsigned char *	src
	)

Copy static bit vector content to dynamic bitvector. Static vector is assumed to be at least same size as the dynamic one.

Definition at line 236 of file bitvector.c.

◆ dbv_are_equal()

bool dbv_are_equal	(	const struct dbv *	pdbv1,
		const struct dbv *	pdbv2
	)

Check if the two dynamic bitvectors are equal.

Definition at line 184 of file bitvector.c.

◆ dbv_bits()

int dbv_bits ( struct dbv * pdbv )

Returns the number of bits defined in a dynamic bitvector.

Definition at line 108 of file bitvector.c.

Referenced by sg_extras_get_dbv().

◆ dbv_clr()

void dbv_clr	(	struct dbv *	pdbv,
		int	bit
	)

Clear the bit given by 'bit'.

Definition at line 163 of file bitvector.c.

Referenced by api_edit_tile_hide(), handle_tile_info(), map_clear_known(), and update_player_tile_knowledge().

◆ dbv_clr_all()

void dbv_clr_all ( struct dbv * pdbv )

Clear all bits.

Definition at line 174 of file bitvector.c.

Referenced by dbv_init(), dbv_resize(), make_rivers(), sg_load_map_known(), and sg_load_map_known().

◆ dbv_copy()

void dbv_copy	(	struct dbv *	dest,
		const struct dbv *	src
	)

Copy dynamic bit vector content from another.

Definition at line 214 of file bitvector.c.

Referenced by really_give_tile_info_from_player_to_player().

◆ dbv_debug()

void dbv_debug ( struct dbv * pdbv )

Debug a dynamic bitvector.

Definition at line 244 of file bitvector.c.

◆ dbv_free()

void dbv_free ( struct dbv * pdbv )

Destroy a dynamic bitvector.

Definition at line 95 of file bitvector.c.

Referenced by check_native_area(), is_city_channel_tile(), make_rivers(), player_destroy(), player_map_free(), player_tile_free(), and remove_city().

◆ dbv_init()

void dbv_init	(	struct dbv *	pdbv,
		int	bits
	)

Initialize a dynamic bitvector of size 'bits'. 'bits' must be greater than 0 and lower than the maximal size given by MAX_DBV_LENGTH. The bitvector is set to all clear.

Definition at line 50 of file bitvector.c.

Referenced by check_native_area(), dbv_resize(), is_city_channel_tile(), make_rivers(), player_map_init(), player_tile_init(), and remove_city().

◆ dbv_isset()

bool dbv_isset	(	const struct dbv *	pdbv,
		int	bit
	)

Check if the bit 'bit' is set.

Definition at line 120 of file bitvector.c.

Referenced by achievement_check(), check_native_area(), client_map_is_known_and_seen(), dbv_debug(), is_city_channel_tile(), make_rivers(), map_is_known(), objbind_get_value_from_object(), remove_city(), river_test_blocked(), sg_extras_get_dbv(), and tile_get_known().

◆ dbv_isset_any()

bool dbv_isset_any ( const struct dbv * pdbv )

Test if any bit is set.

Definition at line 131 of file bitvector.c.

◆ dbv_resize()

void dbv_resize	(	struct dbv *	pdbv,
		int	bits
	)

Resize a dynamic bitvector. Create it if needed.

Definition at line 71 of file bitvector.c.

Referenced by client_player_maps_reset(), and dbv_copy().

◆ dbv_set()

void dbv_set	(	struct dbv *	pdbv,
		int	bit
	)

Set the bit given by 'bit'.

Definition at line 142 of file bitvector.c.

Referenced by check_native_area(), handle_tile_info(), is_city_channel_tile(), make_river(), make_rivers(), map_set_known(), remove_city(), river_blockmark(), sg_bases_set_dbv(), sg_extras_set_dbv(), sg_extras_set_dbv(), sg_roads_set_dbv(), sg_special_set_dbv(), and update_player_tile_knowledge().

◆ dbv_set_all()

void dbv_set_all ( struct dbv * pdbv )

Set all bits.

Definition at line 153 of file bitvector.c.

◆ dbv_to_bv()

void dbv_to_bv	(	unsigned char *	dest,
		const struct dbv *	src
	)

Copy dynamic bit vector content to static bitvector. Static vector is assumed to be at least same size as the dynamic one.

Definition at line 227 of file bitvector.c.

Referenced by do_paradrop(), send_tile_info(), and sg_special_set_dbv().

Functions