flex-devel

[Flex-devel] unicode unsigned short

[Paul <pa...@pr...>]

The unicode16 version of flex uses unsigned short.
Without opening a large can of worms re types, to pass the tests utest-posix
and utest-posixly-correct (nothing to do with posix compatibility) with
the -U flag on, I have altered the line:

char * tests[NUM_TESTS] =  { "ababab"}; /* non unicode */
to (simplified):
unsigned short testu[7]={'a','b','a','b','a','b',0}; /* altered for 
unicode pn */

The test then passes with testu OK.

This makes initializing a pain since:
a.    wchar_t is 4 bytes wide in gcc
b.    L"ababab" is also 4 bytes wide.
whereas unsigned short & unicode 16 is 2 bytes wide.
I will note that char16_t is not defined in C, only C++.

Thoughts please.

Paul

Re: [Flex-devel] unicode unsigned short

[Peter M. <pet...@gm...>]

Uint16t?
On Jul 6, 2012 11:29 AM, "Paul" <pa...@pr...> wrote:

> The unicode16 version of flex uses unsigned short.
> Without opening a large can of worms re types, to pass the tests
> utest-posix
> and utest-posixly-correct (nothing to do with posix compatibility) with
> the -U flag on, I have altered the line:
>
> char * tests[NUM_TESTS] =  { "ababab"}; /* non unicode */
> to (simplified):
> unsigned short testu[7]={'a','b','a','b','a','b',0}; /* altered for
> unicode pn */
>
> The test then passes with testu OK.
>
> This makes initializing a pain since:
> a.    wchar_t is 4 bytes wide in gcc
> b.    L"ababab" is also 4 bytes wide.
> whereas unsigned short & unicode 16 is 2 bytes wide.
> I will note that char16_t is not defined in C, only C++.
>
> Thoughts please.
>
> Paul
>
>
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Re: [Flex-devel] unicode unsigned short

[Paul <pa...@pr...>]

No Uint16t in gcc. Is a Micrsoft-ism.

glibc has <stdint.h> which has uint16_t but not universal.

Paul

On 07/06/2012 11:36 AM, Peter Martini wrote:
>
> Uint16t?
>
>

Re: [Flex-devel] unicode unsigned short

[Peter M. <pet...@gm...>]

Sorry, sent from my phone, I did mean uint16_t :-)  And I thought that it
was mandated by C99 - is there something in particular that doesn't support
it?

On Fri, Jul 6, 2012 at 12:08 PM, Paul <pa...@pr...> wrote:

> No Uint16t in gcc. Is a Micrsoft-ism.
>
> glibc has <stdint.h> which has uint16_t but not universal.
>
> Paul
>
> On 07/06/2012 11:36 AM, Peter Martini wrote:
>
>>
>> Uint16t?
>>
>>
>>
>

Re: [Flex-devel] unicode unsigned short

[Paul <pa...@pr...>]

using gcc & glibc <stdint.h>
uint16_t *x=UINT16_C("ababab");
compiles to: in hex:
6261, 6261, 6261,0

Thus the initialization problem asked about is still not solved.

Paul

On 07/06/2012 12:11 PM, Peter Martini wrote:
> Sorry, sent from my phone, I did mean uint16_t :-) And I thought that 
> it was mandated by C99 - is there something in particular that doesn't 
> support it?
>
> On Fri, Jul 6, 2012 at 12:08 PM, Paul <pa...@pr... 
> <mailto:pa...@pr...>> wrote:
>
>     No Uint16t in gcc. Is a Micrsoft-ism.
>
>     glibc has <stdint.h> which has uint16_t but not universal.
>
>     Paul
>
>     On 07/06/2012 11:36 AM, Peter Martini wrote:
>
>
>         Uint16t?
>
>
>
>

Re: [Flex-devel] unicode unsigned short

[Paul <pa...@pr...>]

I think now that this is a C problem & not a flex problem.

Paul

On 07/06/2012 12:34 PM, Paul wrote:
> using gcc & glibc <stdint.h>
> uint16_t *x=UINT16_C("ababab");
> compiles to: in hex:
> 6261, 6261, 6261,0
>
> Thus the initialization problem asked about is still not solved.
>
> Paul
>
> On 07/06/2012 12:11 PM, Peter Martini wrote:
>> Sorry, sent from my phone, I did mean uint16_t :-) And I thought that 
>> it was mandated by C99 - is there something in particular that 
>> doesn't support it?
>>
>> On Fri, Jul 6, 2012 at 12:08 PM, Paul <pa...@pr... 
>> <mailto:pa...@pr...>> wrote:
>>
>>     No Uint16t in gcc. Is a Micrsoft-ism.
>>
>>     glibc has <stdint.h> which has uint16_t but not universal.
>>
>>     Paul
>>
>>     On 07/06/2012 11:36 AM, Peter Martini wrote:
>>
>>
>>         Uint16t?
>>
>>
>>
>>
>
>
>
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>
>
> _______________________________________________
> Flex-devel mailing list
> Fle...@li...
> https://lists.sourceforge.net/lists/listinfo/flex-devel