'\" t
.\"     Title: function::assert
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: May 2021
.\"    Manual: Logging Tapset
.\"    Source: SystemTap Tapset Reference
.\"  Language: English
.\"
.TH "FUNCTION::ASSERT" "3stap" "May 2021" "SystemTap Tapset Reference" "Logging Tapset"
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.SH "NAME"
function::assert \- evaluate assertion
.SH "SYNOPSIS"
.sp
.nf
1) assert(expression:long)
.fi
.sp
.nf
2) assert(expression:long,msg:string)
.fi
.SH "ARGUMENTS"
.PP
\fIexpression\fR
.RS 4
The expression to evaluate
.RE
.PP
\fImsg\fR
.RS 4
The formatted message string
.RE
.SH "DESCRIPTION"
.PP
1) This function checks the expression and aborts the current running probe if expression evaluates to zero\&. Uses\fBerror\fR
and may be caught by try{} catch{}\&. A default message will be displayed\&.
.PP
2) This function checks the expression and aborts the current running probe if expression evaluates to zero\&. Uses\fBerror\fR
and may be caught by try{} catch{}\&. The specified message will be displayed\&.
.SH SEE ALSO\n 
.IR tapset::logging (3stap)