Return the argv index where the option with name was first entered.

Synopsis

Declared in <balcl_commandline.h>

int
position(std::string_view const& name) const;

Description

If the option was specified multiple times on the command line, return the position of the first instance. If the option was specified as an environment variable but not on the command line, return ‐2. If the option was not specified, return ‐1. The behavior is undefined unless the option is of scalar type.

Return Value

argv index where the named option was first entered, or a negative sentinel if unset

Parameters

Name

Description

name

option name to look up

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