Tcl_PrintDouble man page on QNX

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Tcl_PrintDouble(3)	    Tcl Library Procedures	    Tcl_PrintDouble(3)

______________________________________________________________________________

NAME
       Tcl_PrintDouble - Convert floating value to string

SYNOPSIS
       #include <tcl.h>

       Tcl_PrintDouble(interp, value, dst)

ARGUMENTS
       Tcl_Interp   *interp   (in)	Before	 Tcl  8.0,  the	 tcl_precision │
					variable  in  this  interpreter	  con‐ │
					trolled	 the  conversion.   As	of Tcl │
					8.0, this argument is ignored and  the │
					conversion   is	  controlled   by  the │
					tcl_precision  variable	 that  is  now │
					shared by all interpreters.

       double	    value     (in)	Floating-point value to be converted.

       char	    *dst      (out)	Where  to  store  string  representing
					value.	Must have  at  least  TCL_DOU‐
					BLE_SPACE characters of storage.
_________________________________________________________________

DESCRIPTION
       Tcl_PrintDouble	generates  a string that represents the value of value
       and stores it in memory at the location given by dst.  It uses %g  for‐
       mat to generate the string, with one special twist: the string is guar‐
       anteed to contain either a ``.'' or an ``e'' so that  it	 doesn't  look
       like  an	 integer.   Where %g would generate an integer with no decimal
       point, Tcl_PrintDouble adds ``.0''.

KEYWORDS
       conversion, double-precision, floating-point, string

Tcl				      8.0		    Tcl_PrintDouble(3)
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