man3/qecvt.3

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  23 .\" This replaces an earlier man page written by Walter Harms
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  26 .TH QECVT 3  2007-07-26 "GNU" "Linux Programmer's Manual"
  27 .SH NAME
  28 qecvt, qfcvt, qgcvt \- convert a floating-point number to a string
  29 .SH SYNOPSIS
  30 .B #include <stdlib.h>
  31 .sp
  32 .BI "char *qecvt(long double " number ", int " ndigits ", int *" decpt ,
  33 .BI "int *" sign );
  34 .sp
  35 .BI "char *qfcvt(long double " number ", int " ndigits ", int *" decpt ,
  36 .BI "int *" sign );
  37 .sp
  38 .BI "char *qgcvt(long double " number ", int " ndigit ", char *" buf );
  39 .sp
  40 .in -4n
  41 Feature Test Macro Requirements for glibc (see
  42 .BR feature_test_macros (7)):
  43 .in
  44 .sp
  45 .BR qecvt (),
  46 .BR qfcvt (),
  47 .BR qgcvt ():
  48 .br
  49 _SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500
  50 .SH DESCRIPTION
  51 The functions
  52 .BR qecvt (),
  53 .BR qfcvt ()
  54 and
  55 .BR qgcvt ()
  56 are identical to
  57 .BR ecvt (3),
  58 .BR fcvt (3)
  59 and
  60 .BR gcvt (3)
  61 respectively, except that they use a
  62 .I "long double"
  63 argument
  64 .IR number .
  65 See
  66 .BR ecvt (3)
  67 and
  68 .BR gcvt (3).
  69 .SH "CONFORMING TO"
  70 SVr4.
  71 Not seen in most common Unix implementations,
  72 but occurs in SunOS.
  73 Not supported by libc4 and libc5.
  74 Supported by glibc.
  75 .SH NOTES
  76 These functions are obsolete.
  77 Instead,
  78 .BR sprintf (3)
  79 is recommended.
  80 .SH "SEE ALSO"
  81 .BR ecvt (3),
  82 .BR ecvt_r (3),
  83 .BR gcvt (3),
  84 .BR sprintf (3)