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-rw-r--r--lib/libpmc/pmc_capabilities.35
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libpmc/pmc_capabilities.3 b/lib/libpmc/pmc_capabilities.3
index 7506454..97dc1a3 100644
--- 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 ,
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