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-rw-r--r--docs/examples/multi-post.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/examples/multi-post.c b/docs/examples/multi-post.c
index b89e2d632..894ace0ed 100644
--- a/docs/examples/multi-post.c
+++ b/docs/examples/multi-post.c
@@ -93,6 +93,10 @@ int main(int argc, char *argv[])
/* get file descriptors from the transfers */
curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
+ /* In a real-world program you OF COURSE check the return code of the
+ function calls, *and* you make sure that maxfd is bigger than -1
+ so that the call to select() below makes sense! */
+
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
switch(rc) {