---
name: "Printexc.Slot"
section: "3o"
platform: "linux"
package: "ocaml"
version: "5.5.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Printexc.Slot"
---

# Printexc.Slot(3o)

no description

## NAME

Printexc.Slot - no description

## Module

Module   Printexc.Slot

## Documentation

Module **Slot**\
  :  **sig end**

**Since** 4.02

*type t* =  **Printexc.backtrace\_slot**

*val is\_raise* :  **t -\> bool**

**is\_raise slot** is  **true** when  **slot** refers to a raising point in the code, and  **false** when it comes from a simple function call.

**Since** 4.02

*val is\_inline* :  **t -\> bool**

**is\_inline slot** is  **true** when  **slot** refers to a call that got inlined by the compiler, and  **false** when it comes from any other context.

**Since** 4.04

*val location* :  **t -\> Printexc.location option**

**location slot** returns the location information of the slot, if available, and  **None** otherwise.

Some possible reasons for failing to return a location are as follow:

\-the slot corresponds to a compiler-inserted raise

\-the slot corresponds to a part of the program that has not been compiled with debug information ( **-g** )

**Since** 4.02

*val name* :  **t -\> string option**

**name slot** returns the name of the function or definition enclosing the location referred to by the slot.

**name slot** returns None if the name is unavailable, which may happen for the same reasons as  **location** returning None.

**Since** 4.11

*val format* :  **int -\> t -\> string option**

**format pos slot** returns the string representation of  **slot** as **raw\_backtrace\_to\_string** would format it, assuming it is the **pos** -th element of the backtrace: the  **0** -th element is pretty-printed differently than the others.

Whole-backtrace printing functions also skip some uninformative slots; in that case,  **format pos slot** returns  **None** .

**Since** 4.02