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Also mention that %union can depend on prerequisite types.

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Paul Eggert
2004-05-26 17:45:45 +00:00
parent 2cef3017cd
commit 5c9be03d6d
1 changed files with 5 additions and 3 deletions
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@@ -3745,10 +3745,12 @@ If the parser output file is named @file{@var{name}.c} then this file
is named @file{@var{name}.h}. is named @file{@var{name}.h}.
Unless @code{YYSTYPE} is already defined as a macro, the output header Unless @code{YYSTYPE} is already defined as a macro, the output header
declares @code{YYSTYPE}. Therefore, if you have defined a declares @code{YYSTYPE}. Therefore, if you are using a @code{%union}
(@pxref{Multiple Types, ,More Than One Value Type}) with components
that require other definitions, or if you have defined a
@code{YYSTYPE} macro (@pxref{Value Type, ,Data Types of Semantic @code{YYSTYPE} macro (@pxref{Value Type, ,Data Types of Semantic
Values}) you need to arrange for this definition to be propagated to Values}), you need to arrange for these definitions to be propagated to
all modules, e.g., by putting the macro definition in another, all modules, e.g., by putting them in a
prerequisite header that is included both by your parser and by any prerequisite header that is included both by your parser and by any
other module that needs @code{YYSTYPE}. other module that needs @code{YYSTYPE}.