From bf1a4a5a88fbbb21dec716896eff8319f2997ce7 Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Sat, 2 Mar 2019 12:04:38 -0500
Subject: add documentation

---
 src/setjmp/sigjmp_buf.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/setjmp/sigjmp_buf.c')

diff --git a/src/setjmp/sigjmp_buf.c b/src/setjmp/sigjmp_buf.c
index 09829e88..945448cd 100644
--- a/src/setjmp/sigjmp_buf.c
+++ b/src/setjmp/sigjmp_buf.c
@@ -1,7 +1,15 @@
 #include <setjmp.h>
 
+/** program environment with signal mask **/
+
 typedef jmp_buf                                                      sigjmp_buf;
 
+/***
+is used to hold all the information needed to restore a a calling
+environment, including the signal mask.
+***/
+
 /*
+TYPEDEF(an array type)
 POSIX(1)
 */
-- 
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