Describe return values from pmc_ncpu() and pmc_npmc() better.

svn path=/head/; revision=177106
2008-03-12 15:48:59 +00:00 · 2008-03-12 15:48:59 +00:00 · ef4ba9be47 · 2020-12-20 02:59:44 +00:00
commit ef4ba9be47
parent 507ea268f2
1 changed files with 4 additions and 1 deletions
--- a/lib/libpmc/pmc_capabilities.3
+++ b/lib/libpmc/pmc_capabilities.3
@ -157,7 +157,10 @@ Functions
 .Fn pmc_ncpu
 and
 .Fn pmc_npmc
-returns a positive integer if successful or -1 in case of an error.
+returns a positive integer if successful; otherwise the value -1 is
+returned and the global variable
+.Va errno
+is set to indicate the error.
 .Pp
 Functions
 .Fn pmc_capabilities ,