| Author | Message | ||
Myselfme Junior Artist Username: Myselfme Post Number: 273 Registered: 04-2011 Posted From: 107.77.87.88 Rating: N/A |
Ownership transferred from function* | ||
Analog Side Hero Username: Analog Post Number: 4149 Registered: 05-2008 Posted From: 129.110.242.50 Rating: N/A |
top(int hfhf...) { char* carray carray = calloc(num,sizeof(char)); modify_carray(xxx,xxx,carray) use_carray(xx,xxx,carray) free(carray); } modify_carray(int XX....,char* carray) { // write to carray } use_carray(....,char* carray) { // read carray } | ||
Myselfme Junior Artist Username: Myselfme Post Number: 272 Registered: 04-2011 Posted From: 107.77.87.88 Rating: N/A |
Is it interview question? If yes, they is a possibility that they are getting into discussion on smart pointer, since the ownership is transferred to a function, use the shared_ptr in the main function, you can return unique_ptr from function I may be wrong | ||
Ysr2009 Side Hero Username: Ysr2009 Post Number: 2467 Registered: 03-2014 Posted From: 129.135.0.21 Rating: N/A |
A( char **sCharOut) { .... (*sCharOut) = (char*) malloc(iLength * sizeof(char)); // Fill sCharOut } B() { char *sString=NULL; A( &sString ); free( sString ); }  | ||
Maverick Legend Username: Maverick Post Number: 57974 Registered: 01-2008 Posted From: 108.171.130.188 Rating: N/A |
what is the best way to return char* to the calling function?after a malloc of a local variable, need to return back to calling function..in that case who frees it and how to return? Happy Vizag |