1QECVT(3) Linux Programmer's Manual QECVT(3)
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6 qecvt, qfcvt, qgcvt - convert a floating-point number to a string
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9 #include <stdlib.h>
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11 char *qecvt(long double number, int ndigits, int *decpt, int *sign);
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13 char *qfcvt(long double number, int ndigits, int *decpt, int *sign);
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15 char *qgcvt(long double number, int ndigit, char *buf);
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17 Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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19 qecvt(), qfcvt(), qgcvt(): _SVID_SOURCE
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22 The functions qecvt(), qfcvt() and qgcvt() are identical to ecvt(3),
23 fcvt(3) and gcvt(3) respectively, except that they use a long double
24 argument number. See ecvt(3) and gcvt(3).
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27 Multithreading (see pthreads(7))
28 The qecvt() and qfcvt() functions are not thread-safe.
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30 The qgcvt() function is thread-safe.
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33 SVr4. Not seen in most common UNIX implementations, but occurs in
34 SunOS. Not supported by libc4 and libc5. Supported by glibc.
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37 These functions are obsolete. Instead, sprintf(3) is recommended.
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40 ecvt(3), ecvt_r(3), gcvt(3), sprintf(3)
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43 This page is part of release 3.53 of the Linux man-pages project. A
44 description of the project, and information about reporting bugs, can
45 be found at http://www.kernel.org/doc/man-pages/.
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49GNU 2013-07-22 QECVT(3)