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-rw-r--r--erts/doc/src/erl_nif.xml6
1 files changed, 4 insertions, 2 deletions
diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index 1daac88d47..6b9ca971dc 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -1252,7 +1252,8 @@ typedef struct {
<p>Similar to <c>fprintf</c> but this format string also accepts
<c>"%T"</c>, which formats Erlang terms.</p>
<p>This function was originally intenden for debugging purpose. It is not
- recommended to print very large terms with <c>%T</c>.</p>
+ recommended to print very large terms with <c>%T</c>. The function may
+ change <c>errno</c>, even if successful.</p>
</desc>
</func>
@@ -3178,7 +3179,8 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
<p>Similar to <c>snprintf</c> but this format string also accepts
<c>"%T"</c>, which formats Erlang terms.</p>
<p>This function was originally intenden for debugging purpose. It is not
- recommended to print very large terms with <c>%T</c>.</p>
+ recommended to print very large terms with <c>%T</c>. The function may
+ change <c>errno</c>, even if successful.</p>
</desc>
</func>