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-rw-r--r--programs/lz4io.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/programs/lz4io.c b/programs/lz4io.c
index 258af5b..e2f2801 100644
--- a/programs/lz4io.c
+++ b/programs/lz4io.c
@@ -487,7 +487,8 @@ static int LZ4IO_compressFilename_extRess(cRess_t ress, const char* srcFileName,
size_t cSize = LZ4F_compressFrame(dstBuffer, dstBufferSize, srcBuffer, readSize, &prefs);
if (LZ4F_isError(cSize)) EXM_THROW(34, "Compression failed : %s", LZ4F_getErrorName(cSize));
compressedfilesize += cSize;
- DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%% ", (unsigned)(filesize>>20), (double)compressedfilesize/filesize*100);
+ DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%% ",
+ (unsigned)(filesize>>20), (double)compressedfilesize/(filesize+!filesize)*100); /* avoid division by zero */
/* Write Block */
sizeCheck = fwrite(dstBuffer, 1, cSize, dstFile);