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authorKaz Kylheku <kaz@kylheku.com>2017-06-03 08:08:54 -0700
committerKaz Kylheku <kaz@kylheku.com>2017-06-03 08:08:54 -0700
commit6cb7fdec4cebacda48c5610a45e28ecef16f2ce2 (patch)
treed81a5ffda14c90fd0ff2c148f5d07bd5058ad833 /txr.1
parente538d15b836c6931bbd14b5fb26f57899a3bff54 (diff)
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ffi: use expressions for bit field width also.
* ffi.c (ffi_type_compile): Evaluate width argument of sbit and ubit type as as expression. * txr.1: Documented.
Diffstat (limited to 'txr.1')
-rw-r--r--txr.19
1 files changed, 5 insertions, 4 deletions
diff --git a/txr.1 b/txr.1
index a9ba02de..c0f40cc3 100644
--- a/txr.1
+++ b/txr.1
@@ -53541,9 +53541,9 @@ be extended.
Some constituents of compound type syntax are expressions which evaluate to
integer values: the dimension value for array types, the size for buffers,
-and the value expressions for enumeration constants are such expressions.
-These expressions allow full use of \*(TL. They are evaluated without
-visibility into any apparent surrounding lexical scope.
+the width for bitfields and the value expressions for enumeration constants are
+such expressions. These expressions allow full use of \*(TL. They are
+evaluated without visibility into any apparent surrounding lexical scope.
Some predefined types which are provided are in fact typedef names.
For instance, the
@@ -54453,7 +54453,8 @@ Bitfields of any other type are not supported.
The
.meta width
-parameter of the type indicates the number of bits. It may range from
+parameter of is an expression evaluated in the top-level environment,
+indicates the number of bits. It may range from
zero to the number of bits in the
.code uint
type.