diff options
Diffstat (limited to 'generic/tkImgPNG.c')
| -rw-r--r-- | generic/tkImgPNG.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/generic/tkImgPNG.c b/generic/tkImgPNG.c index c6f2dcb..07b4f8b 100644 --- a/generic/tkImgPNG.c +++ b/generic/tkImgPNG.c @@ -626,7 +626,7 @@ ReadData( int blockSz = PNG_MIN(destSz, PNG_BLOCK_SZ); blockSz = Tcl_Read(pngPtr->channel, (char *)destPtr, blockSz); - if (blockSz < 0) { + if (blockSz == -1) { /* TODO: failure info... */ Tcl_SetObjResult(interp, Tcl_ObjPrintf( "channel read failed: %s", Tcl_PosixError(interp))); @@ -2884,7 +2884,7 @@ WriteData( } memcpy(destPtr+objSz, srcPtr, srcSz); - } else if (Tcl_Write(pngPtr->channel, (const char *) srcPtr, srcSz) < 0) { + } else if (Tcl_Write(pngPtr->channel, (const char *) srcPtr, srcSz) == -1) { Tcl_SetObjResult(interp, Tcl_ObjPrintf( "write to channel failed: %s", Tcl_PosixError(interp))); return TCL_ERROR; |