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) 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. ________________________________________________________________________________ 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)
NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | KEYWORDS
Want to link to this manual page? Use this URL:
<https://man.FreeBSD.org/cgi/man.cgi?query=Tcl_PrintDouble.tcl90&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>