ref: a73645af515b2acd8071837597a4a18b649ee9be
dir: /doc/man3/setlocale.3/
.TH setlocale 3 .SH NAME setlocale - set the current locale .SH SYNOPSIS #include <locale.h> char *setlocale(int category, const char *locale); .SH DESCRIPTION The .BR setlocale () function is used to set or query the program's current locale. It can be used to set or query the locale entirely or partially. If .I locale is not NULL, the program's current locale is modified according to the arguments. The argument .I category determines which parts of the program's current locale should be modified. .nf Category Governs LC_ALL All of the locale LC_COLLATE String collation LC_CTYPE Character classification LC_MONETARY Formatting of monetary values LC_NUMERIC Formatting of nonmonetary numeric values LC_TIME Formatting of date and time values .fi A value of .B C for .I locale specifies the minimum environment for C translation; a value of " " for .I locale specifies the locale-specific native environment. At program startup, .BR setlocale (LC_ALL,"C"); is executed. .SH RETURN VALUE A pointer to the string associated with the specified .I category for the new .I locale is returned if it can be honored. A pointer to the string associated with the specified .I category for the current locale is returned if .I locale is NULL. The string returned is such that a subsequent call with that string value and its associated category will restore that part of the program's locale. The string pointed to shall not be modified by the program, but may be overwritten by a subsequent call to the setlocale function. .SH STANDARDS ISO/IEC 9899:1999 Section 7.11.1.1 Paragraph 1,2,3,4,6,7,8 .SH SEE ALSO .B locale.h(3)