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-rw-r--r--docs/examples/multi-app.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/examples/multi-app.c b/docs/examples/multi-app.c
index 5383a40ae..6c0ef7e7f 100644
--- a/docs/examples/multi-app.c
+++ b/docs/examples/multi-app.c
@@ -80,6 +80,10 @@ 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) {