char *qecvt(long double number, int ndigits, int *decpt, int *sign);
char *qfcvt(long double number, int ndigits, int *decpt, int *sign);
char *qgcvt(long double number, int ndigit, char *buf);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
qecvt(), qfcvt(), qgcvt(): _SVID_SOURCE
The functions qecvt(), qfcvt() and qgcvt() are identical to ecvt(3),
fcvt(3) and gcvt(3) respectively, except that they use a long double
argument number. See ecvt(3) and gcvt(3).
Multithreading (see pthreads(7))
The qecvt() and qfcvt() functions are not thread-safe.
The qgcvt() function is thread-safe.
SVr4. Not seen in most common UNIX implementations, but occurs in
SunOS. Not supported by libc4 and libc5. Supported by glibc.
These functions are obsolete. Instead, sprintf(3) is recommended.
ecvt(3), ecvt_r(3), gcvt(3), sprintf(3)
This page is part of release 3.54 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2013-07-22 QECVT(3)
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