--- a/src/dmgrowbuf.h	Sun Jun 10 20:01:03 2018 +0300
+++ b/src/dmgrowbuf.h	Mon Jun 11 13:57:07 2018 +0300
@@ -28,7 +28,6 @@
         mingrow;    // Minimum amount of bytes the allocation size grows by
 
     BOOL
-        allocated,  // TRUE if this structure itself has been allocated and can be freed, FALSE if static
         backwards,  // TRUE if the buffer grows backwards (e.g. "offs" moves backwards)
         literal,    // TRUE if dmGrowBufPut*() functions stores data "literally" in backwards mode
         is_const;   // TRUE will cause any reallocs etc. modifications to fail
@@ -37,15 +36,13 @@
 
 int    dmGrowBufInit(DMGrowBuf *buf);
 int    dmGrowBufAlloc(DMGrowBuf *buf, const size_t initial, const size_t mingrow);
-int    dmGrowBufNew(DMGrowBuf **pbuf, const size_t initial, const size_t mingrow);
 void   dmGrowBufFree(DMGrowBuf *buf);
 
+DMGrowBuf * dmGrowBufCopy(DMGrowBuf *dst, const DMGrowBuf *src, const size_t enlarge);
+DMGrowBuf * dmGrowBufCopyOffs(DMGrowBuf *dst, const DMGrowBuf *src, const size_t offs, const size_t enlarge);
 DMGrowBuf * dmGrowBufConstCopy(DMGrowBuf *dst, const DMGrowBuf *src);
-DMGrowBuf * dmGrowBufCreateFrom(DMGrowBuf *buf, Uint8 *data, size_t len);
-static inline DMGrowBuf * dmGrowBufCreateFromOffs(DMGrowBuf *dst, const DMGrowBuf *src, const size_t offs)
-{
-    return dmGrowBufCreateFrom(dst, src->data + offs, src->len - offs);
-}
+DMGrowBuf * dmGrowBufConstCopyOffs(DMGrowBuf *dst, const DMGrowBuf *src, const size_t offs);
+DMGrowBuf * dmGrowBufConstCreateFrom(DMGrowBuf *buf, Uint8 *data, size_t len);
 
 
 BOOL   dmGrowBufGrow(DMGrowBuf *buf, const size_t amount);