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examples: fix/silence -Wsign-conversion

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- extend `FD_SET()` hack to all platforms (was only Cygwin).
  Warnings may also happen in other envs, e.g. OmniOS.
  Ref: https://github.com/libssh2/libssh2/actions/runs/8854199687/job/24316762831#step:3:2021

- tidy-up `CURLcode` vs `int` use.

- cast an unsigned to `long` before passing to `curl_easy_setopt()`.

Cherry-picked from #13489
Follow-up to 3829759bd0 #12489
Closes #13501
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Viktor Szakats 2024-04-27 21:09:01 +02:00
parent 7ca0a3791b
commit 5b9955e0bd
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4 changed files with 8 additions and 11 deletions
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docs/examples/address-scope.c
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@ -44,7 +44,7 @@ int main(void)
long my_scope_id;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
my_scope_id = if_nametoindex("eth0");
my_scope_id = (long)if_nametoindex("eth0");
curl_easy_setopt(curl, CURLOPT_ADDRESS_SCOPE, my_scope_id);
/* Perform the request, res gets the return code */