function::isdigit(3) debian man page | unix.com

function::isdigit

FUNCTION:(3stap)					  A collection of standard strin					  FUNCTION:(3stap)

NAME
       function::isdigit - Checks for a digit

SYNOPSIS
	   isdigit:long(str:string)

ARGUMENTS
       str
	   string to check

DESCRIPTION
       Checks for a digit (0 through 9) as the first character of a string. Returns non-zero if true, and a zero if false.

SystemTap Tapset Reference					     May 2013							  FUNCTION:(3stap)