Character Manipulation Function

char *qfcvt_r(long double value, int ndigit, int *decpt, int *neg, char *buf, size_t len);

Internationalization (I18n) Function Overview

The qfcvt_r function is the same as qfcvt, except that it places its result into the user-specified buffer pointed to by buf, with length len.

I18n Issues

qfcvt_r should not be used for strings that will be displayed to the user because the decimal separator and the position of the sign byte are not dependent on the numeric settings of the user's locale. In addition, this function cannot be used with wide character strings.

Alternatively, one of the sprintf functions should be used, as these functions use the setting of the user locale's LC_NUMERIC category when formatting floating-point values. See String Formatting in C and C++ for a discussion on locale-sensitive formatting in internationalized applications.

Recommended Replacements*

ANSI UTF-8	sprintf
ANSI UTF-16	swprintf

Character Manipulation Functions