sgs_GetFramePtr [function]

sgs_StackFrame* sgs_GetFramePtr( sgs_Context* C, sgs_StackFrame* from, int bwd )

Returns a call stack frame pointer.

• If bwd is 0, request a pointer for forward iteration:
  • if from is NULL, return pointer to first frame, otherwise return the frame after from (or NULL if it doesn't exist).
• If bwd is not 0, request a pointer for reverse iteration:
  • if from is NULL, return pointer to last frame, otherwise return the frame before from (or NULL if it doesn't exist).