Replace C memcmp/cpy with copyMem/cmpMem

Signed-off-by: Christopher Arndt <chris@chrisarndt.de>

src/nymph/atom.nim

@@ -163,18 +163,19 @@ type
     ##
     ## The body of an AtomSequence (a sequence of events).
     ##
-    ## The unit field is either a Urid that described an appropriate time stamp
-    ## type, or may be 0 where a default stamp is known.  For
-    ## lv2Descriptor.run(), the default stamp is audio frames.
+    ## The unit field is either a Urid that describes an appropriate time stamp
+    ## type, or may be 0 where a default stamp type is known.  For
+    ## lv2Descriptor.run(), the default stamp type is audio frames.
     ##
     ## The contents of a sequence is a series of AtomEvent, each aligned
     ## to 64-bits, for example:
-    ## <pre>
+    ## 
+    ## ```
     ## | Event 1 (size 6)                              | Event 2
     ## |       |       |       |       |       |       |       |       |
     ## | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
     ## |FRAMES         |SIZE   |TYPE   |DATADATADATAPAD|FRAMES         |...
-    ## </pre>
+    ## ```
     ##
     AtomSequenceBody* {.bycopy.} = object
         unit*: Urid  ## Urid of unit of event time stamps.

src/nymph/atom/util.nim

@@ -10,7 +10,6 @@
 ## Utilities for working with atoms.
 ##
 
-from system/ansi_c import c_memcmp, c_memcpy
 import ../atom
 import ../ptrmath
 import ../urid
@@ -40,7 +39,7 @@ proc atomIsNull*(atom: ptr Atom): bool {.inline.} =
 proc atomEquals*(a: ptr Atom; b: ptr Atom): bool {.inline.} =
     return (a == b) or
         ((a.`type` == b.`type`) and (a.size == b.size) and
-        c_memcmp(a + 1, b + 1, a.size) == 0)
+        cmpMem(a + 1, b + 1, a.size) == 0)
 
 ##
 ## Sequence Iterator
@@ -126,7 +125,7 @@ proc atomSequenceAppendEvent*(seq: ptr AtomSequence; capacity: uint32;
         return nil
     
     var e = atomSequenceEnd(seq.body.addr, seq.atom.size)
-    c_memcpy(e, event, totalSize)
+    copyMem(e, event, totalSize)
     seq.atom.size += atomPadSize(totalSize)
     return e