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 controlled 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_DOUBLE_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
       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