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Use a dedicated copy function to copy dsfs.

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Previously we were duplicating the contents of a dsf using straight-up
memcpy. Now there's a dsf_copy function wrapping the same memcpy.

For the moment, this still has to take a size parameter, because the
size isn't stored inside the dsf itself. But once we make a proper
data type, it will be.
This commit is contained in:
Simon Tatham
2023-04-20 13:52:13 +01:00
parent bb561ee3b1
commit 11a8149d67
5 changed files with 14 additions and 9 deletions
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puzzles.h
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@ -431,6 +431,8 @@ void dsf_free(int *dsf);
void print_dsf(int *dsf, int size);
void dsf_copy(int *to, int *from, int size);
/* Return the canonical element of the equivalence class containing element
* val. If 'inverse' is non-NULL, this function will put into it a flag
* indicating whether the canonical element is inverse to val. */