Implement the *allocx() API.

Implement the *allocx() API, which is a successor to the *allocm() API.
The *allocx() functions are slightly simpler to use because they have
fewer parameters, they directly return the results of primary interest,
and mallocx()/rallocx() avoid the strict aliasing pitfall that
allocm()/rallocx() share with posix_memalign().  The following code
violates strict aliasing rules:

    foo_t *foo;
    allocm((void **)&foo, NULL, 42, 0);

whereas the following is safe:

    foo_t *foo;
    void *p;
    allocm(&p, NULL, 42, 0);
    foo = (foo_t *)p;

mallocx() does not have this problem:

    foo_t *foo = (foo_t *)mallocx(42, 0);

1 files changed, 3 insertions, 3 deletions

diff --git a/src/arena.c b/src/arena.c
index 145de86..4a46013 100644
--- a/src/arena.c
+++ b/src/arena.c
@@ -2031,7 +2031,7 @@ arena_ralloc(arena_t *arena, void *ptr, size_t oldsize, size_t size,
 		size_t usize = sa2u(size + extra, alignment);
 		if (usize == 0)
 			return (NULL);
-		ret = ipallocx(usize, alignment, zero, try_tcache_alloc, arena);
+		ret = ipalloct(usize, alignment, zero, try_tcache_alloc, arena);
 	} else
 		ret = arena_malloc(arena, size + extra, zero, try_tcache_alloc);
 
@@ -2043,7 +2043,7 @@ arena_ralloc(arena_t *arena, void *ptr, size_t oldsize, size_t size,
 			size_t usize = sa2u(size, alignment);
 			if (usize == 0)
 				return (NULL);
-			ret = ipallocx(usize, alignment, zero, try_tcache_alloc,
+			ret = ipalloct(usize, alignment, zero, try_tcache_alloc,
 			    arena);
 		} else
 			ret = arena_malloc(arena, size, zero, try_tcache_alloc);
@@ -2061,7 +2061,7 @@ arena_ralloc(arena_t *arena, void *ptr, size_t oldsize, size_t size,
 	copysize = (size < oldsize) ? size : oldsize;
 	VALGRIND_MAKE_MEM_UNDEFINED(ret, copysize);
 	memcpy(ret, ptr, copysize);
-	iqallocx(ptr, try_tcache_dalloc);
+	iqalloct(ptr, try_tcache_dalloc);
 	return (ret);
 }