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-rw-r--r--src/liblzma/api/lzma/filter.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/liblzma/api/lzma/filter.h b/src/liblzma/api/lzma/filter.h
index efd036f7..e0bc163a 100644
--- a/src/liblzma/api/lzma/filter.h
+++ b/src/liblzma/api/lzma/filter.h
@@ -131,7 +131,9 @@ extern LZMA_API(lzma_ret) lzma_filters_copy(const lzma_filter *src,
* .id == LZMA_VLI_UNKNOWN.
*
* \return Number of bytes of memory required for the given
- * filter chain when encoding.
+ * filter chain when encoding. If an error occurs,
+ * for example due to unsupported filter chain,
+ * UINT64_MAX is returned.
*/
extern LZMA_API(uint64_t) lzma_raw_encoder_memusage(const lzma_filter *filters)
lzma_nothrow lzma_attr_pure;
@@ -148,7 +150,9 @@ extern LZMA_API(uint64_t) lzma_raw_encoder_memusage(const lzma_filter *filters)
* .id == LZMA_VLI_UNKNOWN.
*
* \return Number of bytes of memory required for the given
- * filter chain when decoding.
+ * filter chain when decoding. If an error occurs,
+ * for example due to unsupported filter chain,
+ * UINT64_MAX is returned.
*/
extern LZMA_API(uint64_t) lzma_raw_decoder_memusage(const lzma_filter *filters)
lzma_nothrow lzma_attr_pure;