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(libc.info.gz) Locale Information

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 7.6.1 `localeconv': It is portable but ...
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 Together with the `setlocale' function the ISO C people invented the
 `localeconv' function.  It is a masterpiece of poor design.  It is
 expensive to use, not extendable, and not generally usable as it
 provides access to only `LC_MONETARY' and `LC_NUMERIC' related
 information.  Nevertheless, if it is applicable to a given situation it
 should be used since it is very portable.  The function `strfmon'
 formats monetary amounts according to the selected locale using this
 information.  
 
  -- Function: struct lconv * localeconv (void)
      The `localeconv' function returns a pointer to a structure whose
      components contain information about how numeric and monetary
      values should be formatted in the current locale.
 
      You should not modify the structure or its contents.  The
      structure might be overwritten by subsequent calls to
      `localeconv', or by calls to `setlocale', but no other function in
      the library overwrites this value.
 
  -- Data Type: struct lconv
      `localeconv''s return value is of this data type.  Its elements are
      described in the following subsections.
 
    If a member of the structure `struct lconv' has type `char', and the
 value is `CHAR_MAX', it means that the current locale has no value for
 that parameter.
 

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* General Numeric             Parameters for formatting numbers and
                                  currency amounts.
* Currency Symbol             How to print the symbol that identifies an
                                  amount of money (e.g. `$').
* Sign of Money Amount        How to print the (positive or negative) sign
                                  for a monetary amount, if one exists.
 

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(libc.info.gz) Locale Information

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