Provided by: tcl8.4-doc_8.4.19-4ubuntu3_all
Tcl_PrintDouble - Convert floating value to string
#include <tcl.h> Tcl_PrintDouble(interp, value, dst)
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. _________________________________________________________________
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''.
conversion, double-precision, floating-point, string