[go-nuts] Re: correct way to convert wchar_t* to string ?
That works perfectly - thanks! On Tuesday, February 28, 2017 at 1:51:49 AM UTC, brainman wrote: > > I would just use syscall.UTF16ToString: > https://play.golang.org/p/jGmQXHtoRT > > Alex > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[go-nuts] Re: correct way to convert wchar_t* to string ?
Oh, and make wcMax of 0 produce default of max (otherwise it doesn't make
sense to have 0 chars?)
https://play.golang.org/p/2rLtWFGhpW
On Monday, February 27, 2017 at 6:41:50 PM UTC, Mark wrote:
>
> One tiny suggestion s[:i]
>
> https://play.golang.org/p/_T_hqBg6ka
>
> Thanks:-)
>
> On Monday, February 27, 2017 at 6:36:06 PM UTC, peterGo wrote:
>>
>> Mark,
>>
>> Fixed typos and made minor improvements.
>>
>> Go Playground: https://play.golang.org/p/cbQL8-72s5
>>
>> Peter
>>
>> On Monday, February 27, 2017 at 11:05:32 AM UTC-5, Mark wrote:
>>>
>>> Ooops just realised that I didn't enforce the max chars limit. Here's
>>> another version:
>>>
>>> func CwcharToString(p uintptr, maxchars int) string {
>>> if p == 0 {
>>> return ""
>>> }
>>> uints := make([]uint16, 0, maxchars)
>>> for i, p := 0, uintptr(unsafe.Pointer(p)); i < maxchars; p += 2 {
>>> u := *(*uint16)(unsafe.Pointer(p))
>>> if u == 0 {
>>> break
>>> }
>>> uints = append(uints, u)
>>> i++
>>> }
>>> return string(utf16.Decode(uints))
>>> }
>>>
>>>
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[go-nuts] Re: correct way to convert wchar_t* to string ?
One tiny suggestion s[:i]
https://play.golang.org/p/_T_hqBg6ka
Thanks:-)
On Monday, February 27, 2017 at 6:36:06 PM UTC, peterGo wrote:
>
> Mark,
>
> Fixed typos and made minor improvements.
>
> Go Playground: https://play.golang.org/p/cbQL8-72s5
>
> Peter
>
> On Monday, February 27, 2017 at 11:05:32 AM UTC-5, Mark wrote:
>>
>> Ooops just realised that I didn't enforce the max chars limit. Here's
>> another version:
>>
>> func CwcharToString(p uintptr, maxchars int) string {
>> if p == 0 {
>> return ""
>> }
>> uints := make([]uint16, 0, maxchars)
>> for i, p := 0, uintptr(unsafe.Pointer(p)); i < maxchars; p += 2 {
>> u := *(*uint16)(unsafe.Pointer(p))
>> if u == 0 {
>> break
>> }
>> uints = append(uints, u)
>> i++
>> }
>> return string(utf16.Decode(uints))
>> }
>>
>>
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[go-nuts] Re: correct way to convert wchar_t* to string ?
Peter,
I compared your version with mine on plenty of sample data & they produced
the same results. Although my version seems to do more copying, the
difference between them was += 0.01 sec on each run. However, yours is
simpler and clearer than mine, so I'm now using yours:-)
Thank you!
On Monday, February 27, 2017 at 6:10:14 PM UTC, peterGo wrote:
>
> Mark,
>
> For example,
>
> Go Playground: https://play.golang.org/p/dv48PLY-CD
>
> Peter
>
> On Monday, February 27, 2017 at 11:05:32 AM UTC-5, Mark wrote:
>>
>> Ooops just realised that I didn't enforce the max chars limit. Here's
>> another version:
>>
>> func CwcharToString(p uintptr, maxchars int) string {
>> if p == 0 {
>> return ""
>> }
>> uints := make([]uint16, 0, maxchars)
>> for i, p := 0, uintptr(unsafe.Pointer(p)); i < maxchars; p += 2 {
>> u := *(*uint16)(unsafe.Pointer(p))
>> if u == 0 {
>> break
>> }
>> uints = append(uints, u)
>> i++
>> }
>> return string(utf16.Decode(uints))
>> }
>>
>>
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[go-nuts] Re: correct way to convert wchar_t* to string ?
Mark,
For example,
Go Playground: https://play.golang.org/p/dv48PLY-CD
Peter
On Monday, February 27, 2017 at 11:05:32 AM UTC-5, Mark wrote:
>
> Ooops just realised that I didn't enforce the max chars limit. Here's
> another version:
>
> func CwcharToString(p uintptr, maxchars int) string {
> if p == 0 {
> return ""
> }
> uints := make([]uint16, 0, maxchars)
> for i, p := 0, uintptr(unsafe.Pointer(p)); i < maxchars; p += 2 {
> u := *(*uint16)(unsafe.Pointer(p))
> if u == 0 {
> break
> }
> uints = append(uints, u)
> i++
> }
> return string(utf16.Decode(uints))
> }
>
>
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[go-nuts] Re: correct way to convert wchar_t* to string ?
Ooops just realised that I didn't enforce the max chars limit. Here's
another version:
func CwcharToString(p uintptr, maxchars int) string {
if p == 0 {
return ""
}
uints := make([]uint16, 0, maxchars)
for i, p := 0, uintptr(unsafe.Pointer(p)); i < maxchars; p += 2 {
u := *(*uint16)(unsafe.Pointer(p))
if u == 0 {
break
}
uints = append(uints, u)
i++
}
return string(utf16.Decode(uints))
}
--
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