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Mines' "struct set" stores co-ordinates within the grid in a pair of shorts, which leads to very bad behaviour (including heap-based buffer overruns) if the grid is bigger than SHRT_MAX in either dimension. So now we don't allow that. The overrun can be demonstrated by loading this save file, though the precise crash is quite variable. In particular, you seem to get better crashes if the file doesn't have a trailing newline. SAVEFILE:41:Simon Tatham's Portable Puzzle Collection PARAMS :5:06000 CPARAMS :7:6x60000 NSTATES :1:3 STATEPOS:1:2 MOVE :5:C0,00 GAME :5:Mines DESC :22:r8,u,00000000000000000 MOVE ::
This is the README accompanying the source code to Simon Tatham's puzzle collection. The collection's web site is at <https://www.chiark.greenend.org.uk/~sgtatham/puzzles/>. The puzzle collection is built using CMake <https://cmake.org/>. To compile in the simplest way (on any of Linux, Windows or Mac), run these commands in the source directory: cmake . cmake --build . The manual is provided in Windows Help format for the Windows build; in text format for anyone who needs it; and in HTML for the Mac OS X application and for the web site. It is generated from a Halibut source file (puzzles.but), which is the preferred form for modification. To generate the manual in other formats, rebuild it, or learn about Halibut, visit the Halibut website at <https://www.chiark.greenend.org.uk/~sgtatham/halibut/>.
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