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common: tal_dup_talarr() helper.

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This is a common thing to do, so create a macro.

Unfortunately, it still needs the type arg, because the paramter may
be const, and the return cannot be, and C doesn't have a general
"(-const)" cast.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2020-02-27 12:47:01 +10:30
parent 684ed4231f
commit 2aad3ffcf8
21 changed files with 54 additions and 49 deletions
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4
common/onionreply.c
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@@ -28,13 +28,13 @@ struct onionreply *dup_onionreply(const tal_t *ctx,
return cast_const(struct onionreply *, tal_steal(ctx, r));
n = tal(ctx, struct onionreply);
n->contents = tal_dup_arr(n, u8, r->contents, tal_count(r->contents), 0);
n->contents = tal_dup_talarr(n, u8, r->contents);
return n;
}
struct onionreply *new_onionreply(const tal_t *ctx, const u8 *contents TAKES)
{
struct onionreply *r = tal(ctx, struct onionreply);
r->contents = tal_dup_arr(r, u8, contents, tal_count(contents), 0);
r->contents = tal_dup_talarr(r, u8, contents);
return r;
}