function::isdigit man page on RedHat

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FUNCTION::ISDIGIT(3stap)A collection of standard strinFUNCTION::ISDIGIT(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	 November 2013	      FUNCTION::ISDIGIT(3stap)
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