Hi Jakub,
On Wednesday 2014-11-12 14:13, Jakub Jelinek wrote:
> This patch mentions __builtin_*_overflow in gcc-5/changes.html.
> Ok for CVS?
I've fallen a bit behind with GCC patches, sorry.
What do you think about this follow-up patch on top of yours?
Gerald
Index: changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-5/changes.html,v
retrieving revision 1.41
diff -u -r1.41 changes.html
--- changes.html 23 Nov 2014 14:42:28 -0000 1.41
+++ changes.html 25 Nov 2014 18:49:02 -0000
@@ -157,14 +157,14 @@
These builtins have two integral arguments (which don't need to have
the same type), the arguments are extended to infinite precision
signed type, <code>+</code>, <code>-</code> or <code>*</code>
- is performed on those and the result is stored into some integer
- variable pointed by the last argument. If the stored value is equal
- to the infinite precision result, the built-in functions return
+ is performed on those, and the result is stored in an integer
+ variable pointed to by the last argument. If the stored value is
+ equal to the infinite precision result, the built-in functions return
<code>false</code>, otherwise <code>true</code>. The type of
the integer variable that will hold the result can be different from
- the types of arguments. The following snippet demonstrates how
- this can be used in computing the size for the <code>calloc</code>
- function:
+ the types of the first two arguments. The following snippet
+ demonstrates how this can be used in computing the size for the
+ <code>calloc</code> function:
<blockquote><pre>
void *
calloc (size_t x, size_t y)
@@ -177,8 +177,8 @@
return ret;
}
</pre></blockquote>
- On e.g. i?86 or x86-64 the above will result in <code>mul</code>
- instruction followed by jump on overflow.
+ On e.g. i?86 or x86-64 the above will result in a <code>mul</code>
+ instruction followed by a jump on overflow.
</li>
<li>The option <code>-fextended-identifiers</code> is now enabled
by default for C++, and for C99 and later C versions. Various
Gerald
