$manlookup

qecvt

(3)

convert a floating-point number to a string

Library functionsmanpages-dev 6.9.1-1also documents qfcvt, qgcvt
#include <stdlib.h> [[deprecated]] char *qecvt(long double number, int ndigits, int *restrict decpt, int *restrict sign); [[deprecated]] char *qfcvt(long double number, int ndigits, int *restrict decpt, int *restrict sign); [[deprecated]] char *qgcvt(long double number, int ndigit, char *buf); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): qecvt(), qfcvt(), qgcvt(): Since glibc 2.19: _DEFAULT_SOURCE In glibc up to and including 2.19: _SVID_SOURCE

LIBRARY

Standard C library (libc, -lc)

DESCRIPTION

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).

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface Attribute Value
qecvt () Thread safety MT-Unsafe race:qecvt
qfcvt () Thread safety MT-Unsafe race:qfcvt
qgcvt () Thread safety MT-Safe

STANDARDS

None.

HISTORY

SVr4, SunOS, GNU.

These functions are obsolete. Instead, snprintf(3) is recommended.

See also

ecvt(3)ecvt_r(3)gcvt(3)sprintf(3)