diff options
Diffstat (limited to 'signal.c')
-rw-r--r-- | signal.c | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -238,9 +238,10 @@ signo2signm(int no) /* * call-seq: - * Signal.signame(signo) -> string + * Signal.signame(signo) -> string or nil * - * convert signal number to signal name + * Convert signal number to signal name. + * Returns +nil+ if the signo is an invalid signal number. * * Signal.trap("INT") { |signo| puts Signal.signame(signo) } * Process.kill("INT", 0) |