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-rw-r--r--turbojpeg.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/turbojpeg.h b/turbojpeg.h
index 9c0a371..f3209dd 100644
--- a/turbojpeg.h
+++ b/turbojpeg.h
@@ -1,5 +1,5 @@
/*
- * Copyright (C)2009-2015, 2017 D. R. Commander. All Rights Reserved.
+ * Copyright (C)2009-2015, 2017, 2020 D. R. Commander. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -1636,7 +1636,8 @@ DLLEXPORT int tjSaveImage(const char *filename, unsigned char *buffer,
* (re)allocated by the compression and transform functions or that were
* manually allocated using #tjAlloc().
*
- * @param buffer address of the buffer to free
+ * @param buffer address of the buffer to free. If the address is NULL, then
+ * this function has no effect.
*
* @sa tjAlloc()
*/
@@ -1649,7 +1650,7 @@ DLLEXPORT void tjFree(unsigned char *buffer);
* @param handle a handle to a TurboJPEG compressor, decompressor, or
* transformer instance, or NULL if the error was generated by a global
* function (but note that retrieving the error message for a global function
- * is not thread-safe.)
+ * is thread-safe only on platforms that support thread-local storage.)
*
* @return a descriptive error message explaining why the last command failed.
*/