On 14 February 2012 22:59, Jan van de Sandt <jvdsa...@gmail.com> wrote: > I started with a new image and loaded ConfigurationOfNativeBoost. But it's > still not working. > > First I do a call to get a handle: > > "UEnumeration* ucal_openTimeZones(UErrorCode * ec)" > > self nbCall: #( void* ucal_openTimeZones_48( ICUErrorCodeNB* anErrorCode ) ) > module: 'libicui18n.dylib' > > This call succeeds. I store the result in a subclass of NBExternalHandle > using the #value: class method. > > In the second call I want to use the handle to retrieve the next element: > > self nbCall: #( char* uenum_next_48(ICUEnumerationNB* aHandle, int* nil, > ICUErrorCodeNB* anErrorCode ) ) module: 'libicuuc.dylib' > > But this call still causes the image to disappear. I think the nil and > errorCode arguments are all right. Is there something wrong with the first > argument?
I cannot say precisely, because i don't see a code.. so lets see.. UEnumeration* U_EXPORT2 ucal_openTimeZones ( UErrorCode * ec ) returns a pointer. And you storing the pointer value to instance of ICUEnumerationNB Now i guess that next function should take that pointer value: char* uenum_next_48(ICUEnumerationNB aHandle, int* nil, ICUErrorCodeNB* anErrorCode ) but not a pointer to pointer value, like you wrote: char* uenum_next_48(ICUEnumerationNB* aHandle, int* nil, ICUErrorCodeNB* anErrorCode ) > > Jan. > > > > > > On Tue, Feb 14, 2012 at 11:34 AM, Igor Stasenko <siguc...@gmail.com> wrote: >> >> On 13 February 2012 22:40, Jan van de Sandt <jvdsa...@gmail.com> wrote: >> > Hello list, >> > >> > I want to call the following C function using NativeBoost: >> > >> > const char* uenum_next(UEnumeration * en, int32_t * resultLength, >> > UErrorCode >> > * status) >> > >> > According to the (icu4c) documentation you can pass NULL for the >> > resultLenth >> > argument [1]. But when I try: >> > >> > self nbCall: #( char* uenum_next_48( self, nil, ICUErrorCodeNB* >> > anErrorCode >> > ) ) module: 'libicuuc.dylib' >> >> should be no problem. >> you can try also to just pass zero, if it make any difference >> >> self nbCall: #( char* uenum_next_48( self, 0 , ICUErrorCodeNB* >> anErrorCode ) ) module: 'libicuuc.dylib' >> >> (in fact code generator should produce same code, since nil >> substituted by 0 at the end). >> >> Maybe the problem is not there, but in other arguments you passing. >> >> And, i recommend you to use ConfigurationOfNativeBoost from >> NBInstaller, but not latest packages directly, since Javier put a lot >> of changes lately and some parts might not work properly. >> >> >> > >> > My image craches. Does anyone know what I'm doing wrong? >> > >> > Jan. >> > >> > >> > [1] http://icu-project.org/apiref/icu4c/uenum_8h.html#a99298eabaa3874cdfd9793b207848f68 >> >> >> >> -- >> Best regards, >> Igor Stasenko. >> > -- Best regards, Igor Stasenko.
