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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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3
plugins/pay.c
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@@ -868,8 +868,7 @@ static struct command_result *getroute_error(struct command *cmd,
/* Deep copy of excludes array. */
static const char **dup_excludes(const tal_t *ctx, const char **excludes)
{
const char **ret = tal_dup_arr(ctx, const char *,
excludes, tal_count(excludes), 0);
const char **ret = tal_dup_talarr(ctx, const char *, excludes);
for (size_t i = 0; i < tal_count(ret); i++)
ret[i] = tal_strdup(ret, excludes[i]);
return ret;