On Fri, May 8, 2015 at 7:13 AM, Levi Morrison <le...@php.net> wrote:
> On Fri, May 8, 2015 at 5:01 AM, Pierre Joye <pierre....@gmail.com> wrote:
>> On May 8, 2015 4:42 AM, "Christoph Becker" <cmbecke...@gmx.de> wrote:
>>>
>>> Nikita Popov wrote:
>>>
>>> > [...] What's our current minimum required vc version?
>>>
>>> As of PHP 5.5 at least VC11 (Visual Studio 2012) is required for Windows
>>> builds. The currently available snapshots of master are also built with
>>> VC11[1].
>>
>> We are in the process of testing latest or better said the upcoming next
>> version of VC.
>>
>> However it is a long process. We use a couple of libs to test c99 support.
>>
>> What could be amazingly helpful, not only for VC, is some sample codes
>> using what we are most likely to use intensively from c99. It will allow is
>> to valid them against various compilers as well as clearly define what we
>> can support in the CS, all compilers we are likely to support for 7,
>> including VC, ICC or older GCC.
>>
>> Cheers,
>
> I am quite sure we would use these features:
>
> - compound literals (this would allow for zend_string* at compile time)
> - designated initializers
>
> I'll work on some code examples later today if someone hasn't beaten
> me to it by then.
Here is a self-contained example of designated initializers:
struct Point {
int x;
int y;
};
int main(void) {
struct Point p = {
.y = 2,
.x = 1,
};
return !(p.x == 1 && p.y == 2);
}
And here is compound literals:
#include <stddef.h>
struct sstring {
size_t len;
char *val;
};
static struct sstring str;
int main(void) {
str = (struct sstring) {
sizeof("hello, world") - 1,
"hello, world"
};
return !(str.len == sizeof("hello, world") - 1);
}
I expect in some cases we may even use them together. This particular
example doesn't really show why, but sometimes we have two uint32_t's
in a row and initializing them with a name helps make the code more
understandable:
#include <stddef.h>
struct sstring {
size_t len;
char *val;
};
static struct sstring str;
int main(void) {
str = (struct sstring) {
.len = sizeof("hello, world") - 1,
.val = "hello, world",
};
return !(str.len == sizeof("hello, world") - 1);
}
--
PHP Internals - PHP Runtime Development Mailing List
To unsubscribe, visit: http://www.php.net/unsub.php
