:orphan:
# PetscStackUpdateLine
in a function that has a `PetscFunctionBegin` or `PetscFunctionBeginUser` updates the stack line number to the current line number. 
## Synopsis
```
#include <petscsys.h>
void PetscStackUpdateLine
```
Not Collective




## Notes
Using `PetscCall()` and friends automatically handles this process

In debug mode PETSc maintains a stack of the current function calls that can be used to help to quickly see where a problem has
occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to
help debug the problem.

The default stack is a global variable called petscstack.

This is used by `PetscCall()` and is otherwise not like to be needed


## See Also
 `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPushNoCheck()`, `PetscStackPop`, `PetscCall()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petscerror.h.html#PetscStackUpdateLine">include/petscerror.h</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/include/petscerror.h)


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