#define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC)
#define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC)
+#define SvGAMAGIC(sv) (SvFLAGS(sv) & (SVs_GMG|SVf_AMAGIC))
+
/*
#define Gv_AMG(stash) \
(HV_AMAGICmb(stash) && \
#define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
#define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
-/*
-IoTYPE(sv) is a single character saying what type of I/O connection
-this is:
- | pipe
- - stdin or stdout
- < read-only
- > write-only
- a append
- + read and write
- s socket
- space closed
-*/
+/* IoTYPE(sv) is a single character telling the type of I/O connection. */
+#define IoTYPE_RDONLY '<'
+#define IoTYPE_WRONLY '>'
+#define IoTYPE_RDWR '+'
+#define IoTYPE_APPEND 'a'
+#define IoTYPE_PIPE '|'
+#define IoTYPE_STD '-' /* stdin or stdout */
+#define IoTYPE_SOCKET 's'
+#define IoTYPE_CLOSED ' '
/*
=for apidoc Am|bool|SvTAINTED|SV* sv