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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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6
untangle.c
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@ -202,7 +202,7 @@ 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->n < 4)
return "Number of points must be at least four";
@ -731,7 +731,7 @@ static char *new_game_desc(const game_params *params, random_state *rs,
return ret;
}
static char *validate_desc(const game_params *params, const char *desc)
static const char *validate_desc(const game_params *params, const char *desc)
{
int a, b;
@ -878,7 +878,7 @@ 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 n = state->params.n;
int matrix[4];