DOKK / manpages / debian 12 / systemtap-doc / function::isdigit.3stap.en
FUNCTION::ISDIGIT(3stap) A collection of standard strin FUNCTION::ISDIGIT(3stap)

function::isdigit - Checks for a digit



    isdigit:long(str:string)

str

string to check

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

tapset::string(3stap)

November 2022 SystemTap Tapset Reference