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Diffstat (limited to 'libio/libioP.h')
-rw-r--r--libio/libioP.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/libio/libioP.h b/libio/libioP.h
index 66afaa8968..afa46cc519 100644
--- a/libio/libioP.h
+++ b/libio/libioP.h
@@ -108,9 +108,14 @@
(IO_validate_vtable \
(*(struct _IO_jump_t **) ((void *) &_IO_JUMPS_FILE_plus (THIS) \
+ (THIS)->_vtable_offset)))
+# define _IO_JUMPS_FUNC_UPDATE(THIS, VTABLE) \
+ (*(const struct _IO_jump_t **) ((void *) &_IO_JUMPS_FILE_plus (THIS) \
+ + (THIS)->_vtable_offset) = (VTABLE))
# define _IO_vtable_offset(THIS) (THIS)->_vtable_offset
#else
# define _IO_JUMPS_FUNC(THIS) (IO_validate_vtable (_IO_JUMPS_FILE_plus (THIS)))
+# define _IO_JUMPS_FUNC_UPDATE(THIS, VTABLE) \
+ (_IO_JUMPS_FILE_plus (THIS) = (VTABLE))
# define _IO_vtable_offset(THIS) 0
#endif
#define _IO_WIDE_JUMPS_FUNC(THIS) _IO_WIDE_JUMPS(THIS)