4 files changed, 33 insertions, 0 deletions
diff --git a/src/stdbool/__bool_true_false_are_defined.c b/src/stdbool/__bool_true_false_are_defined.c
index 65d76ee0..a311586b 100644
--- a/src/stdbool/__bool_true_false_are_defined.c
+++ b/src/stdbool/__bool_true_false_are_defined.c
@@ -1,6 +1,15 @@
 #include <stdbool.h>
+
+/** indicate inclusion of <stdbool.h> **/
+
 #define __bool_true_false_are_defined                                        (1)
 
+/***
+is set to indicate that the standard header HEADER(stdbool.h) has been included,
+and the definitions of MACRO(bool), MACRO(true), and MACRO(false) are available.
+***/
+
 /*
+VALUE_FIXED(1)
 STDC(199901)
 */
diff --git a/src/stdbool/bool.c b/src/stdbool/bool.c
index 557a1454..9f8bc863 100644
--- a/src/stdbool/bool.c
+++ b/src/stdbool/bool.c
@@ -1,6 +1,14 @@
 #include <stdbool.h>
+
+/** boolean type **/
+
 #define bool                                                               _Bool
 
+/***
+provides an alternative spelling for the type TYPE(_Bool).
+***/
+
 /*
+VALUE_FIXED(TYPE(_Bool))
 STDC(199901)
 */
diff --git a/src/stdbool/false.c b/src/stdbool/false.c
index 15f292d6..0259936d 100644
--- a/src/stdbool/false.c
+++ b/src/stdbool/false.c
@@ -1,6 +1,14 @@
 #include <stdbool.h>
+
+/** boolean false constant **/
+
 #define false                                                                (0)
 
+/***
+is the false value for the type TYPE(_Bool).
+***/
+
 /*
+VALUE_FIXED(0)
 STDC(199901)
 */
diff --git a/src/stdbool/true.c b/src/stdbool/true.c
index da515b7c..b6288b05 100644
--- a/src/stdbool/true.c
+++ b/src/stdbool/true.c
@@ -1,6 +1,14 @@
 #include <stdbool.h>
+
+/** boolean true constant **/
+
 #define true                                                                 (1)
 
+/***
+is the boolean true value for the type TYPE(_Bool).
+***/
+
 /*
+VALUE_FIXED(1)
 STDC(199901)
 */