Buffers and Pointers

ruby-bindgen automatically wraps pointer parameters and return types. For details on using buffers and pointers from Ruby, see the Rice documentation on Buffers and Pointers.

Pointers to fundamental types (int*, double*, char*, void*, etc.) and double pointers (T**) are automatically wrapped using Rice's ArgBuffer and ReturnBuffer classes:

void processData(int* data, int size);           // ArgBuffer("data")
void getMinMax(double* min, double* max);        // Out parameters via ArgBuffer
int* createBuffer(int size);                     // ReturnBuffer
void processArrays(float** matrices, int count); // Double pointer via ArgBuffer