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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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5
common/sphinx.c
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@@ -62,8 +62,7 @@ struct sphinx_path {
struct sphinx_path *sphinx_path_new(const tal_t *ctx, const u8 *associated_data)
{
struct sphinx_path *sp = tal(ctx, struct sphinx_path);
sp->associated_data = tal_dup_arr(sp, u8, associated_data,
tal_bytelen(associated_data), 0);
sp->associated_data = tal_dup_talarr(sp, u8, associated_data);
sp->session_key = NULL;
sp->hops = tal_arr(sp, struct sphinx_hop, 0);
return sp;
@@ -95,7 +94,7 @@ void sphinx_add_hop(struct sphinx_path *path, const struct pubkey *pubkey,
const u8 *payload TAKES)
{
struct sphinx_hop sp;
sp.raw_payload = tal_dup_arr(path, u8, payload, tal_count(payload), 0);
sp.raw_payload = tal_dup_talarr(path, u8, payload);
sp.pubkey = *pubkey;
tal_arr_expand(&path->hops, sp);
}