USELOCALE(3) Library Functions Manual USELOCALE(3)

uselocaleSet the per-thread locale

#include <xlocale.h>

locale_t
uselocale(locale_t loc);

Sets the per-thread locale to loc. Specify LC_GLOBAL_LOCALE to turn off any per-thread locale. Pass NULL to return the current value of the per-thread locale (or LC_GLOBAL_LOCALE) without changing the locale.

Returns the previous locale, or LC_GLOBAL_LOCALE if no per-thread locale was in effect.

duplocale(3), freelocale(3), newlocale(3), querylocale(3), xlocale(3)

March 11, 2005 macOS 15.0