+/* read_switch.h -- prompt the user for an answer from the list
+ *
+ * This code is Copyright (c) 2017, by the authors of nmh. See the
+ * COPYRIGHT file in the root directory of the nmh distribution for
+ * complete copyright information. */
+
+/*
+ * Print null-terminated PROMPT to and flush standard output. Read answers from
+ * standard input until one matches an entry in SWITCHES. When one matches,
+ * return its swret field. Return 0 on EOF.
+ */
+int read_switch(const char *, const struct swit *);