666     FILE* const srcFile = LZ4IO_openSrcFile(srcFileName);  in LZ4IO_compressFilename_extRess()  local
667     if (srcFile == NULL) return 1;  in LZ4IO_compressFilename_extRess()
669     if (dstFile == NULL) { fclose(srcFile); return 1; }  in LZ4IO_compressFilename_extRess()
681       U64 const fileSize = UTIL_getOpenFileSize(srcFile);  in LZ4IO_compressFilename_extRess()
688     readSize  = fread(srcBuffer, (size_t)1, blockSize, srcFile);  in LZ4IO_compressFilename_extRess()
689     if (ferror(srcFile)) EXM_THROW(30, "Error reading %s ", srcFileName);  in LZ4IO_compressFilename_extRess()
732             readSize  = fread(srcBuffer, (size_t)1, (size_t)blockSize, srcFile);  in LZ4IO_compressFilename_extRess()
735         if (ferror(srcFile)) EXM_THROW(37, "Error reading %s ", srcFileName);  in LZ4IO_compressFilename_extRess()
747     fclose (srcFile);  in LZ4IO_compressFilename_extRess()
1053                      FILE* const srcFile, FILE* const dstFile,  in LZ4IO_decompressLZ4F()  argument
1076         readSize = fread(ress.srcBuffer, 1, nextToLoad, srcFile);  in LZ4IO_decompressLZ4F()
1099     if (ferror(srcFile)) EXM_THROW(67, "Read error");  in LZ4IO_decompressLZ4F()