timespec: use the new TIMESPEC_RESOLUTION in a few more places

* lib/timespec-add.c (timespec_add): Also replace 999999999
with TIMESPEC_RESOLUTION - 1.
* lib/timespec-sub.c (timespec_sub): Likewise.

diff --git a/ChangeLog b/ChangeLog
index a963098..4b6cbdc 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2013-09-21  Jim Meyering  <meyering@fb.com>
+
+       timespec: use the new TIMESPEC_RESOLUTION in a few more places
+       * lib/timespec-add.c (timespec_add): Also replace 999999999
+       with TIMESPEC_RESOLUTION - 1.
+       * lib/timespec-sub.c (timespec_sub): Likewise.
+
 2013-09-23  Paul Eggert  <eggert@cs.ucla.edu>
 
        warnings: port --enable-gcc-warnings to Solaris Studio 12.3

diff --git a/lib/timespec-add.c b/lib/timespec-add.c
index 51323a6..d628237 100644 (file)
--- a/lib/timespec-add.c
+++ b/lib/timespec-add.c
@@ -18,7 +18,7 @@
 /* Written by Paul Eggert.  */
 
 /* Return the sum of two timespec values A and B.  On overflow, return
-   an extremal value.  This assumes 0 <= tv_nsec <= 999999999.  */
+   an extremal value.  This assumes 0 <= tv_nsec < TIMESPEC_RESOLUTION.  */
 
 #include <config.h>
 #include "timespec.h"
@@ -58,7 +58,7 @@ timespec_add (struct timespec a, struct timespec b)
         {
         high_overflow:
           rs = TYPE_MAXIMUM (time_t);
-          rns = 999999999;
+          rns = TIMESPEC_RESOLUTION - 1;
         }
     }
   else

diff --git a/lib/timespec-sub.c b/lib/timespec-sub.c
index b164a83..3f3adea 100644 (file)
--- a/lib/timespec-sub.c
+++ b/lib/timespec-sub.c
@@ -18,8 +18,8 @@
 /* Written by Paul Eggert.  */
 
 /* Return the difference between two timespec values A and B.  On
-   overflow, return an extremal value.  This assumes 0 <= tv_nsec <=
-   999999999.  */
+   overflow, return an extremal value.  This assumes 0 <= tv_nsec <
+   TIMESPEC_RESOLUTION.  */
 
 #include <config.h>
 #include "timespec.h"
@@ -58,7 +58,7 @@ timespec_sub (struct timespec a, struct timespec b)
       else
         {
           rs = TYPE_MAXIMUM (time_t);
-          rns = 999999999;
+          rns = TIMESPEC_RESOLUTION - 1;
         }
     }
   else