| Cstack_info | R Documentation |
Report information on the C stack size and usage (if available).
Cstack_info()
On most platforms, C stack information is recorded when R is initialized and used for stack-checking. If this information is unavailable, the size will be returned as NA, and stack-checking is not performed.
The information on the stack base address is thought to be accurate on Windows, Linux (using glibc), macOS and FreeBSD but a heuristic is used on other platforms. Because this might be slightly inaccurate, the current usage could be estimated as negative. (The heuristic is not used on embedded uses of R on platforms where the stack base information is not thought to be accurate.)
The ‘evaluation depth’ is the number of nested R expressions currently under evaluation: this has a limit controlled by options("expressions").
An integer vector. This has named elements
size | The size of the stack (in bytes), or |
current | The estimated current usage (in bytes), possibly |
direction |
|
eval_depth | The current evaluation depth (including two calls for the call to |
Cstack_info()
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