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Cleanup: const-ify parameters to trivial accessor functions

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Accessor-functions without noticeable logic, such as depth_to_bar()
can trivially be made "const-clean".

Moreover, let get_dive_location() return a "const char *". The
non-const version must have been an oversight, as the caller
must not free() or overwrite the string.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2018-08-17 00:36:51 +02:00 • committed by Dirk Hohndel
parent 360f07e453
commit 44f34d8cd7
2 changed files with 35 additions and 35 deletions
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36
core/dive.c
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@ -3858,7 +3858,7 @@ static bool new_picture_for_dive(struct dive *d, const char *filename)
// only add pictures that have timestamps between 30 minutes before the dive and
// 30 minutes after the dive ends
#define D30MIN (30 * 60)
bool dive_check_picture_time(struct dive *d, int shift_time, timestamp_t timestamp)
bool dive_check_picture_time(const struct dive *d, int shift_time, timestamp_t timestamp)
{
offset_t offset;
if (timestamp) {
@ -4025,7 +4025,7 @@ void delete_current_divecomputer(void)
/* helper function to make it easier to work with our structures
* we don't interpolate here, just use the value from the last sample up to that time */
int get_depth_at_time(struct divecomputer *dc, unsigned int time)
int get_depth_at_time(const struct divecomputer *dc, unsigned int time)
{
int depth = 0;
if (dc && dc->sample)
@ -4038,7 +4038,7 @@ int get_depth_at_time(struct divecomputer *dc, unsigned int time)
}
//Calculate O2 in best mix
fraction_t best_o2(depth_t depth, struct dive *dive)
fraction_t best_o2(depth_t depth, const struct dive *dive)
{
fraction_t fo2;
@ -4050,7 +4050,7 @@ fraction_t best_o2(depth_t depth, struct dive *dive)
}
//Calculate He in best mix. O2 is considered narcopic
fraction_t best_he(depth_t depth, struct dive *dive)
fraction_t best_he(depth_t depth, const struct dive *dive)
{
fraction_t fhe;
int pnarcotic, ambient;
@ -4107,17 +4107,17 @@ int calculate_depth_to_mbar(int depth, pressure_t surface_pressure, int salinity
return mbar;
}
int depth_to_mbar(int depth, struct dive *dive)
int depth_to_mbar(int depth, const struct dive *dive)
{
return calculate_depth_to_mbar(depth, dive->surface_pressure, dive->salinity);
}
double depth_to_bar(int depth, struct dive *dive)
double depth_to_bar(int depth, const struct dive *dive)
{
return depth_to_mbar(depth, dive) / 1000.0;
}
double depth_to_atm(int depth, struct dive *dive)
double depth_to_atm(int depth, const struct dive *dive)
{
return mbar_to_atm(depth_to_mbar(depth, dive));
}
@ -4126,7 +4126,7 @@ double depth_to_atm(int depth, struct dive *dive)
* (that's the one that some dive computers like the Uemis Zurich
* provide - for the other models that do this libdivecomputer has to
* take care of this, but the Uemis we support natively */
int rel_mbar_to_depth(int mbar, struct dive *dive)
int rel_mbar_to_depth(int mbar, const struct dive *dive)
{
int cm;
double specific_weight = 1.03 * 0.981;
@ -4137,7 +4137,7 @@ int rel_mbar_to_depth(int mbar, struct dive *dive)
return cm * 10;
}
int mbar_to_depth(int mbar, struct dive *dive)
int mbar_to_depth(int mbar, const struct dive *dive)
{
pressure_t surface_pressure;
if (dive->surface_pressure.mbar)
@ -4148,7 +4148,7 @@ int mbar_to_depth(int mbar, struct dive *dive)
}
/* MOD rounded to multiples of roundto mm */
depth_t gas_mod(struct gasmix mix, pressure_t po2_limit, struct dive *dive, int roundto)
depth_t gas_mod(struct gasmix mix, pressure_t po2_limit, const struct dive *dive, int roundto)
{
depth_t rounded_depth;
@ -4158,7 +4158,7 @@ depth_t gas_mod(struct gasmix mix, pressure_t po2_limit, struct dive *dive, int
}
/* Maximum narcotic depth rounded to multiples of roundto mm */
depth_t gas_mnd(struct gasmix mix, depth_t end, struct dive *dive, int roundto)
depth_t gas_mnd(struct gasmix mix, depth_t end, const struct dive *dive, int roundto)
{
depth_t rounded_depth;
pressure_t ppo2n2;
@ -4183,14 +4183,14 @@ struct dive *get_dive_from_table(int nr, struct dive_table *dt)
return dt->dives[nr];
}
struct dive_site *get_dive_site_for_dive(struct dive *dive)
struct dive_site *get_dive_site_for_dive(const struct dive *dive)
{
if (dive)
return get_dive_site_by_uuid(dive->dive_site_uuid);
return NULL;
}
const char *get_dive_country(struct dive *dive)
const char *get_dive_country(const struct dive *dive)
{
struct dive_site *ds = get_dive_site_by_uuid(dive->dive_site_uuid);
if (ds) {
@ -4201,7 +4201,7 @@ const char *get_dive_country(struct dive *dive)
return NULL;
}
char *get_dive_location(struct dive *dive)
const char *get_dive_location(const struct dive *dive)
{
struct dive_site *ds = get_dive_site_by_uuid(dive->dive_site_uuid);
if (ds && ds->name)
@ -4209,10 +4209,10 @@ char *get_dive_location(struct dive *dive)
return NULL;
}
unsigned int number_of_computers(struct dive *dive)
unsigned int number_of_computers(const struct dive *dive)
{
unsigned int total_number = 0;
struct divecomputer *dc = &dive->dc;
const struct divecomputer *dc = &dive->dc;
if (!dive)
return 1;
@ -4275,12 +4275,12 @@ int get_idx_by_uniq_id(int id)
return i;
}
bool dive_site_has_gps_location(struct dive_site *ds)
bool dive_site_has_gps_location(const struct dive_site *ds)
{
return ds && (ds->latitude.udeg || ds->longitude.udeg);
}
int dive_has_gps_location(struct dive *dive)
int dive_has_gps_location(const struct dive *dive)
{
if (!dive)
return false;