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Last-ditch maximum size limit for Sixteen

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This makes sure that width * height <= INT_MAX, which it rather needs
to be.
This commit is contained in:
Ben Harris
2023-01-10 20:24:59 +00:00
parent 5c36e1536a
commit 91d96fa0bc
1 changed files with 3 additions and 0 deletions
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3
sixteen.c
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@ -9,6 +9,7 @@
#include <string.h>
#include <assert.h>
#include <ctype.h>
#include <limits.h>
#include <math.h>
#include "puzzles.h"
@ -173,6 +174,8 @@ static const char *validate_params(const game_params *params, bool full)
{
if (params->w < 2 || params->h < 2)
return "Width and height must both be at least two";
if (params->w > INT_MAX / params->h)
return "Width times height must not be unreasonably large";
return NULL;
}