diff options
Diffstat (limited to 'perliol.h')
-rw-r--r-- | perliol.h | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -90,6 +90,7 @@ struct _PerlIO { #define PerlIOBase(f) (*(f)) #define PerlIOSelf(f,type) ((type *)PerlIOBase(f)) #define PerlIONext(f) (&(PerlIOBase(f)->next)) +#define PerlIOValid(f) ((f) && *(f)) /*--------------------------------------------------------------------------------------*/ /* Data exports - EXT rather than extern is needed for Cygwin */ |