Tcl_PrintDouble(3)	     Tcl Library Procedures	      Tcl_PrintDouble(3)

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NAME
     Tcl_PrintDouble - Convert floating value to string

SYNOPSIS
     #include <tcl.h>

     Tcl_PrintDouble(interp, value, dst)

ARGUMENTS
     Tcl_Interp *interp (in)	      This argument is ignored.

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

     char *dst (out)		      Where  to	 store	the  string representing
				      value.   Must  have  at	least	TCL_DOU-
				      BLE_SPACE characters of storage.
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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  format  to
     generate  the  string,  with one special twist: the string is guaranteed to
     contain either a "."  or an "e" so that it does not look like  an	integer.
     Where  %g	would generate an integer with no decimal point, Tcl_PrintDouble
     adds ".0".

     The result will have the fewest digits needed to represent	 the  number  in
     such  a  way  that Tcl_NewDoubleObj will generate the same number when pre-
     sented with the given string.  IEEE semantics of rounding to even apply  to
     the conversion.

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

Tcl				       8.0		      Tcl_PrintDouble(3)