Tcl_PrintDouble(3) Tcl Library Procedures Tcl_PrintDouble(3)
Tcl_PrintDouble - Convert floating value to string
Tcl_PrintDouble(interp, value, dst)
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.
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''.
conversion, double-precision, floating-point, string
Tcl 8.0 Tcl_PrintDouble(3)