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Option: identifier-chars
-identifier-chars=list
Define non-alphanumeric
characters that may be used in identifiers. By default, ftnchek only accepts
the dollar sign and underscore as non-alphanumeric characters in identifier
names. The characters in the list replace whatever set of accepted non-alphanumeric
characters was previously in effect. Thus, if dollar sign or underscore
are not included in the list, they lose their status as acceptable characters.
This option is provided to enable ftnchek to handle source files containing
non-standard identifer names that may be needed, for example, to access
certain operating system services. See the section on Limitations and
Extensions for the treatment of identifiers containing these characters
in implicit typing.
Using -noidentifer-chars turns off acceptance of non-alphanumeric
characters entirely.
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