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-rw-r--r--info/libgamma.texinfo13
1 files changed, 13 insertions, 0 deletions
diff --git a/info/libgamma.texinfo b/info/libgamma.texinfo
index 8bac4b8..78643ee 100644
--- a/info/libgamma.texinfo
+++ b/info/libgamma.texinfo
@@ -593,6 +593,19 @@ that its functions may return:
£>done
@end table
+The function @code{libgamma_name_of_error} can
+be used to return the name of an libgamma error.
+For example @code{libgamma_name_of_error(LIBGAMMA_ERRNO_SET)}
+will return the string ``LIBGAMMA_ERRNO_SET''.
+Similarly @code{libgamma_value_of_error("LIBGAMMA_ERRNO_SET")}
+will return the value of @code{LIBGAMMA_ERRNO_SET}.
+The value returned from @code{libgamma_name_of_error}
+shall not be @code{free}:d. @code{NULL} is returned
+if the value does nto refer to a @command{libgamma}
+error. @code{libgamma_value_of_error} will return zero
+if the input is @code{NULL} or string that is not the
+name of a @command{libgamma} error.
+
@node GNU Free Documentation License