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Return error messages as 'const char *', not 'char *'.

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They're never dynamically allocated, and are almost always string
literals, so const is more appropriate.
This commit is contained in:
Simon Tatham
2017-10-01 13:53:24 +01:00
parent de67801b0f
commit b3243d7504
52 changed files with 266 additions and 231 deletions
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11
unfinished/group.c
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@ -240,7 +240,7 @@ static game_params *custom_params(const config_item *cfg)
return ret;
}
static char *validate_params(const game_params *params, int full)
static const char *validate_params(const game_params *params, int full)
{
if (params->w < 3 || params->w > 26)
return "Grid size must be between 3 and 26";
@ -777,7 +777,7 @@ done
* Gameplay.
*/
static char *validate_grid_desc(const char **pdesc, int range, int area)
static const char *validate_grid_desc(const char **pdesc, int range, int area)
{
const char *desc = *pdesc;
int squares = 0;
@ -807,7 +807,7 @@ static char *validate_grid_desc(const char **pdesc, int range, int area)
return NULL;
}
static char *validate_desc(const game_params *params, const char *desc)
static const char *validate_desc(const game_params *params, const char *desc)
{
int w = params->w, a = w*w;
const char *p = desc;
@ -907,7 +907,7 @@ static void free_game(game_state *state)
}
static char *solve_game(const game_state *state, const game_state *currstate,
const char *aux, char **error)
const char *aux, const char **error)
{
int w = state->par.w, a = w*w;
int i, ret;
@ -2106,7 +2106,8 @@ int main(int argc, char **argv)
{
game_params *p;
game_state *s;
char *id = NULL, *desc, *err;
char *id = NULL, *desc;
const char *err;
digit *grid;
int grade = FALSE;
int ret, diff, really_show_working = FALSE;