topic Re: String split question in Intel® Integrated Performance Primitives

String split question

2dipikke — Thu, 29 Sep 2005 13:46:36 GMT

Hi, I'm trying to use the functions ippsSplitC_8u_D2L or ippsSplitC_16u_D2L either with managed C++ or C#, but I'm not able to made them work, I've got problems with parameters.

Does anybody have an example of how they work?

Thank you very much in advance

Marco

Re: String split question

Vladimir_Dudnik — Tue, 11 Oct 2005 00:25:18 GMT

did you took a look on IPP C# sample, which demonstartes how to implement C# interface to IPP functions? It also contains interfaces to ippCH functions (string and text processing which you use)

Regards,
Vladimir

Re: String split question

2dipikke — Tue, 11 Oct 2005 14:09:24 GMT

Yes, I did,but I've found just the DllImport declaration of the functions that use unsafe C# code with difficult to manage byte**.

Is there any sample code that show the right way to use them?

Could you post some?

Thank you

Re: String split question

Vladimir_Dudnik — Mon, 17 Oct 2005 22:48:42 GMT

Hi,

yes, our expert prepared such a simple sample specially for you:)

#include
#include
#include

int main() {
const Ipp8u States[] = "Alabama Alaska Arizona Arkansas California Colorado Connecticut";
Ipp8u buff[40];
Ipp8u* nameState[4] = { buff, buff + 10, buff + 20, buff + 30 };
int lenNameState[4]= { 10, 10, 10, 10 };
int i, numState = 4;
IppStatus status;

status = ippsSplitC_8u_D2L( (Ipp8u*)States, sizeof(States) - 1, ' ', nameState, lenNameState, &numState );
if( status < ippStsNoErr ) {
printf( "Error "%s" appear in ippsSplitC_8u_D2L function. ", ippGetStatusString( status ) );
return 1;
} /* if */
for( i = 0; i < numState; i++ ) {
*(nameState + lenNameState) = '�';
printf( "State %d: %s; ", i, (char*)(nameState) );
} /* for */
return 0;
} /* main */

This example should ouput on the screen:

State 0: Alabama;
State 1: Alaska;
State 2: Arizona;
State 3: Arkansas;

Regards,
Vladimir

Re: String split question

rmauldin — Tue, 18 Oct 2005 03:54:43 GMT

Im sorry, I could have sworn he was looking for managed code without pointers. I don't see any managed code here. No namespace, and managed C# has no use for headers. Great program, but maybe not quite what he was hoping for...

Thanks,
Ryan