/* Using C's structural equivalence to help emulate C++ inheritance here... */
-struct STRUCT_SV {
+struct STRUCT_SV { /* struct sv { */
void* sv_any; /* pointer to something */
U32 sv_refcnt; /* how many references to us */
U32 sv_flags; /* what we are */
#define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */
#define SVf_OOK 0x00200000 /* has valid offset value */
-#define SVf_BREAK 0x00400000 /* refcnt is artificially low */
+#define SVf_BREAK 0x00400000 /* refcnt is artificially low - used
+ * by SV's in final arena cleanup */
#define SVf_READONLY 0x00800000 /* may not be modified */
Dereferences an RV to return the SV.
=for apidoc Am|IV|SvIVX|SV* sv
-Returns the integer which is stored in the SV, assuming SvIOK is
-true.
+Returns the raw value in the SV's IV slot, without checks or conversions.
+Only use when you are sure SvIOK is true. See also C<SvIV()>.
=for apidoc Am|UV|SvUVX|SV* sv
-Returns the unsigned integer which is stored in the SV, assuming SvIOK is
-true.
+Returns the raw value in the SV's UV slot, without checks or conversions.
+Only use when you are sure SvIOK is true. See also C<SvUV()>.
=for apidoc Am|NV|SvNVX|SV* sv
-Returns the double which is stored in the SV, assuming SvNOK is
-true.
+Returns the raw value in the SV's NV slot, without checks or conversions.
+Only use when you are sure SvNOK is true. See also C<SvNV()>.
=for apidoc Am|char*|SvPVX|SV* sv
-Returns a pointer to the string in the SV. The SV must contain a
+Returns a pointer to the physical string in the SV. The SV must contain a
string.
=for apidoc Am|STRLEN|SvCUR|SV* sv
Like <SvPV> but will force the SV into becoming a string (SvPOK). You want
force if you are going to update the SvPVX directly.
+=for apidoc Am|char*|SvPV_force_nomg|SV* sv|STRLEN len
+Like <SvPV> but will force the SV into becoming a string (SvPOK). You want
+force if you are going to update the SvPVX directly. Doesn't process magic.
+
=for apidoc Am|char*|SvPV|SV* sv|STRLEN len
Returns a pointer to the string in the SV, or a stringified form of the SV
-if the SV does not contain a string. Handles 'get' magic.
+if the SV does not contain a string. Handles 'get' magic. See also
+C<SvPVx> for a version which guarantees to evaluate sv only once.
+
+=for apidoc Am|char*|SvPVx|SV* sv|STRLEN len
+A version of C<SvPV> which guarantees to evaluate sv only once.
=for apidoc Am|char*|SvPV_nolen|SV* sv
Returns a pointer to the string in the SV, or a stringified form of the SV
if the SV does not contain a string. Handles 'get' magic.
=for apidoc Am|IV|SvIV|SV* sv
-Coerces the given SV to an integer and returns it.
+Coerces the given SV to an integer and returns it. See C<SvIVx> for a
+version which guarantees to evaluate sv only once.
+
+=for apidoc Am|IV|SvIVx|SV* sv
+Coerces the given SV to an integer and returns it. Guarantees to evaluate
+sv only once. Use the more efficent C<SvIV> otherwise.
=for apidoc Am|NV|SvNV|SV* sv
-Coerce the given SV to a double and return it.
+Coerce the given SV to a double and return it. See C<SvNVx> for a version
+which guarantees to evaluate sv only once.
+
+=for apidoc Am|NV|SvNVx|SV* sv
+Coerces the given SV to a double and returns it. Guarantees to evaluate
+sv only once. Use the more efficent C<SvNV> otherwise.
=for apidoc Am|UV|SvUV|SV* sv
-Coerces the given SV to an unsigned integer and returns it.
+Coerces the given SV to an unsigned integer and returns it. See C<SvUVx>
+for a version which guarantees to evaluate sv only once.
+
+=for apidoc Am|UV|SvUVx|SV* sv
+Coerces the given SV to an unsigned integer and returns it. Guarantees to
+evaluate sv only once. Use the more efficent C<SvUV> otherwise.
=for apidoc Am|bool|SvTRUE|SV* sv
Returns a boolean indicating whether Perl would evaluate the SV as true or
false, defined or undefined. Does not handle 'get' magic.
+=for apidoc Am|char*|SvPVutf8_force|SV* sv|STRLEN len
+Like C<SvPV_force>, but converts sv to uft8 first if necessary.
+
+=for apidoc Am|char*|SvPVutf8|SV* sv|STRLEN len
+Like C<SvPV>, but converts sv to uft8 first if necessary.
+
+=for apidoc Am|char*|SvPVutf8_nolen|SV* sv|STRLEN len
+Like C<SvPV_nolen>, but converts sv to uft8 first if necessary.
+
+=for apidoc Am|char*|SvPVbyte_force|SV* sv|STRLEN len
+Like C<SvPV_force>, but converts sv to byte representation first if necessary.
+
+=for apidoc Am|char*|SvPVbyte|SV* sv|STRLEN len
+Like C<SvPV>, but converts sv to byte representation first if necessary.
+
+=for apidoc Am|char*|SvPVbyte_nolen|SV* sv|STRLEN len
+Like C<SvPV_nolen>, but converts sv to byte representation first if necessary.
+
+=for apidoc Am|char*|SvPVutf8x_force|SV* sv|STRLEN len
+Like C<SvPV_force>, but converts sv to uft8 first if necessary.
+Guarantees to evalute sv only once; use the more efficient C<SvPVutf8_force>
+otherwise.
+
+=for apidoc Am|char*|SvPVutf8x|SV* sv|STRLEN len
+Like C<SvPV>, but converts sv to uft8 first if necessary.
+Guarantees to evalute sv only once; use the more efficient C<SvPVutf8>
+otherwise.
+
+=for apidoc Am|char*|SvPVbytex_force|SV* sv|STRLEN len
+Like C<SvPV_force>, but converts sv to byte representation first if necessary.
+Guarantees to evalute sv only once; use the more efficient C<SvPVbyte_force>
+otherwise.
+
+=for apidoc Am|char*|SvPVbytex|SV* sv|STRLEN len
+Like C<SvPV>, but converts sv to byte representation first if necessary.
+Guarantees to evalute sv only once; use the more efficient C<SvPVbyte>
+otherwise.
+
+
=cut
*/
Calls a non-destructive version of C<sv_setsv> if dsv is not the same as
ssv. May evaluate arguments more than once.
+=for apidoc Am|void|SvSetMagicSV|SV* dsb|SV* ssv
+Like C<SvSetSV>, but does any set magic required afterwards.
+
+=for apidoc Am|void|SvSetMagicSV_nosteal|SV* dsv|SV* ssv
+Like C<SvSetMagicSV>, but does any set magic required afterwards.
+
=for apidoc Am|char *|SvGROW|SV* sv|STRLEN len
Expands the character buffer in the SV so that it has room for the
indicated number of bytes (remember to reserve space for an extra trailing
#define CLONEf_COPY_STACKS 1
#define CLONEf_KEEP_PTR_TABLE 2
+#define CLONEf_CLONE_HOST 4
+typedef struct {
+ AV* stashes;
+ UV flags;
+} clone_params;
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