From 8c16e68dda72032e81a624360b1abb1006e33481 Mon Sep 17 00:00:00 2001
From: Laurent Bercot
Date: Wed, 29 Apr 2020 23:24:30 +0000
Subject: Correct alloc.h documentation
---
doc/libstddjb/alloc.html | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
(limited to 'doc')
diff --git a/doc/libstddjb/alloc.html b/doc/libstddjb/alloc.html
index 87b1751..ca6ecf1 100644
--- a/doc/libstddjb/alloc.html
+++ b/doc/libstddjb/alloc.html
@@ -65,11 +65,10 @@ should favor them over basic interfaces like malloc().
Functions
- char *alloc (size_t len)
+ void *alloc (size_t len)
Allocates a block of len bytes in the heap and returns a pointer
-to the start of the block (or NULL if it failed). Though the pointer type
-is char *, the block of memory is correctly aligned for any type
-of object. If len is 0, the function returns a pointer that
+to the start of the block (or NULL if it failed).
+If len is 0, the function returns a unique pointer that
cannot be written to, but that is not null. Note that this is
different from the required C99 behaviour for malloc().
@@ -85,7 +84,9 @@ Redimension the block of heap memory pointed to by *p to
newlen bytes. The block may have to be moved, in which case
*p will be modified. Normally returns 1; if an error occurred,
returns 0 and sets errno, and neither *p nor its contents are
-modified.
+modified. Note that p must be a pointer to a char *,
+because polymorphism isn't possible here (for reasons that have to do
+with pointer representation in C).
--
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