ExtraTopLevelOperators.failwithf<'T,'Result> Function (F#)
Print to a string buffer and raise an exception with the given result. Helper printers must return strings.
Namespace/Module Path: Microsoft.FSharp.Core.ExtraTopLevelOperators
Assembly: FSharp.Core (in FSharp.Core.dll)
// Signature:
failwithf : StringFormat<'T,'Result> -> 'T
// Usage:
failwithf format
Parameters
- format
Type: StringFormat<'T,'Result>
Remarks
This function is named PrintFormatToStringThenFail in compiled assemblies. If you are accessing the member from a language other than F#, or through reflection, use this name.
Example
The following code example illustrates the use of failwithf.
let reportError componentName code =
failwithf "Component %s reported a failure. Error code: 0x%x" componentName code
reportError "Filesystem monitor" 0x80000005
Platforms
Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2
Version Information
F# Core Library Versions
Supported in: 2.0, 4.0, Portable