1 files changed, 17 insertions, 21 deletions
diff --git a/include/libn.h b/include/libn.h
index 835d2c1..721defd 100644
--- a/include/libn.h
+++ b/include/libn.h
@@ -65,21 +65,17 @@ typedef struct mem·Allocator {
     void  (*free)(void *iface, void *ptr);
 } mem·Allocator;
 
-/* system implementation */
-static
-void ·free(void* _, void* ptr) {
-    return free(ptr);
-}
-
-static
-void *·alloc(void* _, uint n, ulong size) {
-    return malloc(n*size);
-}
+typedef struct mem·Reallocator {
+    void *(*alloc)(void *iface, uint n, ulong size);
+    void *(*realloc)(void *iface, void *ptr, uint n, ulong size);
+    void  (*free)(void *iface, void *ptr);
+} mem·Reallocator;
 
-static
-void *·calloc(void* _, uint n, ulong size) {
-    return calloc(n, size);
-}
+/* system implementation */
+extern void  ·free(void* _, void *ptr);
+extern void *·alloc(void* _, uint n, ulong size);
+extern void *·calloc(void* _, uint n, ulong size);
+extern void *·realloc(void* _, void *ptr, uint n, ulong size);
 
 // TODO(nnoll): Allow for nil iterfaces?
 static
@@ -123,10 +119,10 @@ int     str·cap(const string s);
 void    str·clear(string *s);
 void    str·grow(string *s, vlong delta);
 void    str·fit(string *s);
-void    str·appendlen(string *s, vlong len, const byte *b);
-void    str·append(string *s, const byte* b);
-void    str·appendf(string *s, const byte* fmt, ...);
-void    str·appendbyte(string *s, const byte b);
+int     str·appendlen(string *s, vlong len, const byte *b);
+int     str·append(string *s, const byte* b);
+int     str·appendf(string *s, const byte* fmt, ...);
+int     str·appendbyte(string *s, const byte b);
 bool    str·equals(const string s, const string t);
 int     str·find(string s, const byte* substr);
 void    str·lower(string s);
@@ -344,9 +340,9 @@ vlong      gz·seek(gz·Stream *s, long off, enum SeekPos whence);
 // -----------------------------------------------------------------------------
 // error handling functions
 
-void errorf(const byte* fmt, ...);
-
-#define panicf(...)  (errorf(__VA_ARGS__), assert(0))
+void errorf(byte* fmt, ...);
+void panicf(byte *fmt, ...);
+void vpanicf(byte *fmt, va_list args); 
 
 // -----------------------------------------------------------------------------
 // sorting