Replaced arena

include/platform/mem/ci2_arena.h

@@ -1,5 +1,5 @@
 /* - | Copyright | ------------------------------------------------------------
-	 Copyright (c) 2026 Randy Jordan
+   Copyright (c) 2026 Randy Jordan
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
@@ -23,45 +23,33 @@ SOFTWARE.
 #ifndef CI2_ARENA_H
 #define CI2_ARENA_H
 
-#include "../ci2_platform.h"
-#include "../error/ci2_exception.h"
-
-enum
-{
-	DEFAULT = 0,				 /* default: fail-handler (throws) + zero */
-	SOFT_FAIL = 1u << 0, /* on failure return NULL */
-	HARD_FAIL = 1u << 1, /* on failure call abort() */
-	NO_ZERO = 1u << 2,	 /* do not zero memory on success */
-};
+#include <stddef.h>
 
 struct Arena
 {
-	char* beg;
-	char* end;
+  char* beg;
+  char* end;
 };
 typedef struct Arena Arena;
 
-/* Forward definition of an exception */
-CI2_API struct Exception arena_oom;
+/* Initialize an Arena with an existing buffer  */
+extern void
+arena_back(struct Arena* a, char* buf, ptrdiff_t len);
 
-/* Initialize an Arena from a buffer. */
-CI2_API void
-arena_init(struct Arena* a, void* buf, ptrdiff_t len);
-
-/* Dynamically allocate an Arena */
-CI2_API struct Arena
+/* Allocate a new Arena */
+extern struct Arena
 arena_new(ptrdiff_t cap);
 
-/* Get the remaining capicity of an arena. */
-CI2_API ptrdiff_t
-arena_size(struct Arena a);
+/* Get the current capacity of an Arena */
+extern ptrdiff_t
+arena_capacity(struct Arena a);
 
-/* Make an allocation from an Arena. */
-CI2_API void*
-arena_alloc(struct Arena* a,
-						int flags,
-						ptrdiff_t size,
-						ptrdiff_t align,
-						ptrdiff_t count);
+/* Make an allocation from an Arena and do not zero.*/
+extern void*
+arena_malloc(struct Arena* a, ptrdiff_t size, ptrdiff_t align, ptrdiff_t count);
+
+/* Make an allocation from an Arena and zero.*/
+extern void*
+arena_calloc(struct Arena* a, ptrdiff_t size, ptrdiff_t align, ptrdiff_t count);
 
 #endif // ci2_arena.h