Modern String MoneyLocaleIsValid

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MoneyLocaleIsValid

Returns false if the system rejected the money locale.

Syntax

MoneyLocaleIsValid( ) as boolean

Notes

• This exists because the failure is otherwise SILENT. On Linux an ungenerated locale leaves every lconv field at its C value -- empty strings, and 127 in frac_digits and the sign positions -- with nothing to say the locale was never applied.
• musl has no LC_MONETARY at all and always reports C-locale monetary values. glibc and msvcrt are fine.
• Formatting still works when it is false; the fallbacks are ., ,, 3;0 repeating, two fraction digits, symbol first, no space, sign before all. A symbol is never invented, so an amount simply renders without one.

Examples

if MoneyLocaleIsValid( ) = false then
    dim as MoneyFormat m
    m.Symbol = "$"                  '' we know what currency we are in
end if

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Library: String Library
Category: String Library
Documented under: Money Formatting