Tcl Source Code

.CS
set foo {foo {a b} bar 2 baz 3}
\fBdict with\fR foo {}
puts $foo
#    prints: \fIa b foo {a b} bar 2 baz 3\fR
.CE
.SH "SEE ALSO"
append(n), array(n), foreach(n), incr(n), list(n), lappend(n), lmap(n), set(n)
.SH KEYWORDS
dictionary, create, update, lookup, iterate, filter, map
'\" Local Variables:
'\" mode: nroff
'\" End:

	case sINFINI:
	case sINFINIT:
#ifdef IEEE_FLOATING_POINT
	case sN:
	case sNA:
	case sNANPAREN:
	case sNANHEX:
#endif
	    Tcl_Panic("TclParseNumber: bad acceptState %d parsing '%s'",
		    acceptState, bytes);

	case BINARY:
	    shift = numTrailZeros;
	    if (!significandOverflow && significandWide != 0 &&
		    ((size_t)shift >= CHAR_BIT*sizeof(Tcl_WideUInt) ||
		    significandWide > (MOST_BITS + signum) >> shift)) {
		significandOverflow = 1;
		TclBNInitBignumFromWideUInt(&significandBig, significandWide);

TclStringCatObjv(
    Tcl_Interp *interp,
    int inPlace,
    int objc,
    Tcl_Obj * const objv[],
    Tcl_Obj **objPtrPtr)
{
    Tcl_Obj *objResultPtr, * const *ov;
    int oc, length = 0, binary = 1;
    int allowUniChar = 1, requestUniChar = 0;
    int first = objc - 1;	/* Index of first value possibly not empty */
    int last = 0;		/* Index of last value possibly not empty */

    /* assert ( objc >= 0 ) */

    if (objc <= 1) {
	/* Only one or no objects; return first or empty */
	*objPtrPtr = objc ? objv[0] : Tcl_NewObj();
	return TCL_OK;
    }

    /* assert ( objc >= 2 ) */

    /*
     * Analyze to determine what representation result should be.
     * GOALS:	Avoid shimmering & string rep generation.
     * 		Produce pure bytearray when possible.
     * 		Error on overflow.
     */

    ov = objv, oc = objc;
    do {
	Tcl_Obj *objPtr = *ov++;

	if (objPtr->bytes) {
	    /* Value has a string rep. */
	    if (objPtr->length) {
		/*
		 * Non-empty string rep. Not a pure bytearray, so we
		 * won't create a pure bytearray

	}
    } while (--oc && (binary || allowUniChar));

    if (binary) {
	/* Result will be pure byte array. Pre-size it */
	ov = objv; oc = objc;
	do {
	    Tcl_Obj *objPtr = *ov++;

	    if (objPtr->bytes == NULL) {
		int numBytes;

		Tcl_GetByteArrayFromObj(objPtr, &numBytes); /* PANIC? */
		if (numBytes) {
		    last = objc - oc;
		    if (length == 0) {
			first = last;
		    } else if (numBytes > INT_MAX - length) {
			goto overflow;
		    }
		    length += numBytes;
		}
	    }
	} while (--oc);
    } else if (allowUniChar && requestUniChar) {
	/* Result will be pure Tcl_UniChar array. Pre-size it. */
	ov = objv; oc = objc;
	do {
	    Tcl_Obj *objPtr = *ov++;

	    if ((objPtr->bytes == NULL) || (objPtr->length)) {
		int numChars;

		Tcl_GetUnicodeFromObj(objPtr, &numChars); /* PANIC? */
		if (numChars) {
		    last = objc - oc;
		    if (length == 0) {
			first = last;
		    } else if (numChars > INT_MAX - length) {
			goto overflow;
		    }
		    length += numChars;
		}
	    }
	} while (--oc);
    } else {


	/* Result will be concat of string reps. Pre-size it. */
	ov = objv; oc = objc;
	do {
	    Tcl_Obj *pendingPtr = NULL;

	    /*
	     * Loop until a possibly non-empty value is reached.
	     * Keep string rep generation pending when possible.
	     */

	    do {
		/* assert ( pendingPtr == NULL ) */
		/* assert ( length == 0 ) */

		Tcl_Obj *objPtr = *ov++;

		if (objPtr->bytes == NULL) {
		    /* No string rep; Take the chance we can avoid making it */
		    pendingPtr = objPtr;
		} else {
		    Tcl_GetStringFromObj(objPtr, &length); /* PANIC? */
		}
	    } while (--oc && (length == 0) && (pendingPtr == NULL));

	    /*
 	     * Either we found a possibly non-empty value, and we
 	     * remember this index as the first and last such value so
 	     * far seen, or (oc == 0) and all values are known empty,
 	     * so first = last = objc - 1 signals the right quick return.
 	     */

	    first = last = objc - oc - 1;

	    if (oc && (length == 0)) {
		int numBytes;

		/* assert ( pendingPtr != NULL ) */

		/*
		 * There's a pending value followed by more values.
		 * Loop over remaining values generating strings until
		 * a non-empty value is found, or the pending value gets
		 * its string generated.
		 */

		do {
		    Tcl_Obj *objPtr = *ov++;
		    Tcl_GetStringFromObj(objPtr, &numBytes); /* PANIC? */
		} while (--oc && numBytes == 0 && pendingPtr->bytes == NULL);


		if (numBytes) {
		    last = objc -oc -1;
		}
		if (oc || numBytes) {
		    Tcl_GetStringFromObj(pendingPtr, &length);

		}
		if (length == 0) {
		    if (numBytes) {
			first = last;
		    }
		} else if (numBytes > INT_MAX - length) {
		    goto overflow;
		}
		length += numBytes;
	    }
	} while (oc && (length == 0));

	while (oc) {
	    int numBytes;
	    Tcl_Obj *objPtr = *ov++;

	    /* assert ( length > 0 && pendingPtr == NULL )  */

	    Tcl_GetStringFromObj(objPtr, &numBytes); /* PANIC? */
	    if (numBytes) {
		last = objc - oc;
		if (numBytes > INT_MAX - length) {
		    goto overflow;
		}
		length += numBytes;
	    }
	    --oc;
	}
    }

    if (last <= first /*|| length == 0 */) {
	/* Only one non-empty value or zero length; return first */
	/* NOTE: (length == 0) implies (last <= first) */
	*objPtrPtr = objv[first];
	return TCL_OK;
    }

    objv += first; objc = (last - first + 1);

    if (binary) {

    tcl::unsupported::representation \
	[string cat [encoding convertto utf-8 {}] [list x]]
} -match glob -result {*, string representation "x"}
test string-29.13 {string cat, efficiency} -body {
    tcl::unsupported::representation [string cat \
	[encoding convertto utf-8 {}] [encoding convertto utf-8 {}] [list x]]
} -match glob -result {*, string representation "x"}
test string-29.14 {string cat, efficiency} -setup {
    set e [encoding convertto utf-8 {}]
} -cleanup {
    unset e
} -body {
    tcl::unsupported::representation [string cat $e $e [list x]]
} -match glob -result {*no string representation}
test string-29.15 {string cat, efficiency} -setup {
    set e [encoding convertto utf-8 {}]
    set f [encoding convertto utf-8 {}]
} -cleanup {
    unset e f
} -body {
    tcl::unsupported::representation [string cat $e $f $e $f [list x]]
} -match glob -result {*no string representation}



# cleanup
rename MemStress {}
catch {rename foo {}}
::tcltest::cleanupTests

 * Side effects:
 *	Adds three elements do dsPtr
 *
 *----------------------------------------------------------------------
 */

#ifndef NEED_FAKE_RFC2553
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wstrict-aliasing"
static inline int
IPv6AddressNeedsNumericRendering(
    struct in6_addr addr)
{
    if (IN6_ARE_ADDR_EQUAL(&addr, &in6addr_any)) {
        return 1;
    }

    /*
     * The IN6_IS_ADDR_V4MAPPED macro has a problem with aliasing warnings on
     * at least some versions of OSX.
     */



    if (!IN6_IS_ADDR_V4MAPPED(&addr)) {

        return 0;
    }

    return (addr.s6_addr[12] == 0 && addr.s6_addr[13] == 0
            && addr.s6_addr[14] == 0 && addr.s6_addr[15] == 0);
}
#pragma GCC diagnostic pop
#endif /* NEED_FAKE_RFC2553 */

static void
TcpHostPortList(
    Tcl_Interp *interp,
    Tcl_DString *dsPtr,
    address addr,