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* tree.h (DECL_EXTERNAL): Clarify documentation.

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From-SVN: r108221
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Gabriel Dos Reis 2005-12-08 09:01:22 +00:00 • committed by Gabriel Dos Reis
parent 4989e88a3f
commit 9783dd389a
2 changed files with 10 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
2005-12-08 Gabriel Dos Reis <gdr@integrable-solutions.net>
* tree.h (DECL_EXTERNAL): Clarify documentation.
2005-12-08 Andreas Krebbel <krebbel1@de.ibm.com>
Jakub Jelinek <jakub@redhat.com>

7
gcc/tree.h
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@ -2144,7 +2144,12 @@ struct tree_memory_tag GTY(())
#define DECL_LANG_SPECIFIC(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.lang_specific)
/* In a VAR_DECL or FUNCTION_DECL, nonzero means external reference:
do not allocate storage, and refer to a definition elsewhere. */
do not allocate storage, and refer to a definition elsewhere. Note that
this does not necessarily imply the entity represented by NODE
has no program source-level definition in this translation unit. For
example, for a FUNCTION_DECL, DECL_SAVED_TREE may be non-NULL and
DECL_EXTERNAL may be true simultaneously; that can be the case for
a C99 "extern inline" function. */
#define DECL_EXTERNAL(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.decl_flag_2)
/* In a VAR_DECL for a RECORD_TYPE, sets number for non-init_priority