locale.h - category macros
[CX] Some of the functionality described on this reference page extends the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to the ISO C standard.
The <locale.h> header shall provide a definition for lconv structure, which shall include at least the following members. (See the definitions of LC_MONETARY in LC_MONETARY and LC_NUMERIC.)char *currency_symbol char *decimal_point char frac_digits char *grouping char *int_curr_symbol char int_frac_digits char int_n_cs_precedes char int_n_sep_by_space char int_n_sign_posn char int_p_cs_precedes char int_p_sep_by_space char int_p_sign_posn char *mon_decimal_point char *mon_grouping char *mon_thousands_sep char *negative_sign char n_cs_precedes char n_sep_by_space char n_sign_posn char *positive_sign char p_cs_precedes char p_sep_by_space char p_sign_posn char *thousands_sep
The <locale.h> header shall define NULL (as defined in <stddef.h>) and at least the following as macros:
which shall expand to distinct integer constant expressions, for use as the first argument to the setlocale() function.
Additional macro definitions, beginning with the characters LC_ and an uppercase letter, may also be given here.
The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided.struct lconv *localeconv(void); char *setlocale(int, const char *);
The System Interfaces volume of IEEE Std 1003.1-2001, localeconv(), setlocale(), Environment Variables
First released in Issue 3.
Included for alignment with the ISO C standard.
The lconv structure is expanded with new members ( int_n_cs_precedes, int_n_sep_by_space, int_n_sign_posn, int_p_cs_precedes, int_p_sep_by_space, and int_p_sign_posn) for alignment with the ISO/IEC 9899:1999 standard.
Extensions beyond the ISO C standard are marked.