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| author | Janis Johnson <janis187@us.ibm.com> | 2002-09-04 17:35:59 +0000 |
|---|---|---|
| committer | Janis Johnson <janis@gcc.gnu.org> | 2002-09-04 17:35:59 +0000 |
| commit | 478c9e72c61443a0fc32841d05c2251246de88c8 (patch) | |
| tree | cda38963326438a28584b3d0f047c0ae365275fc /gcc/doc/gty.texi | |
| parent | 7b98d4549b34d8fe57170ce9fb57f2c1508516dc (diff) | |
| download | gcc-478c9e72c61443a0fc32841d05c2251246de88c8.zip gcc-478c9e72c61443a0fc32841d05c2251246de88c8.tar.gz gcc-478c9e72c61443a0fc32841d05c2251246de88c8.tar.bz2 | |
c-tree.texi: Fix overfull hboxes.
2002-09-04 Janis Johnson <janis187@us.ibm.com>
* doc/c-tree.texi: Fix overfull hboxes.
* doc/cppopts.texi: Ditto.
* doc/extend.texi: Ditto.
* doc/gty.texi: Ditto.
* doc/invoke.texi: Ditto.
* doc/makefile.texi: Ditto.
* doc/rtl.texi: Ditto.
* doc/standards.texi: Ditto.
* doc/tm.texi: Ditto.
From-SVN: r56802
Diffstat (limited to 'gcc/doc/gty.texi')
| -rw-r--r-- | gcc/doc/gty.texi | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/gcc/doc/gty.texi b/gcc/doc/gty.texi index f854b80..cbd9caa 100644 --- a/gcc/doc/gty.texi +++ b/gcc/doc/gty.texi @@ -95,18 +95,21 @@ option is a fragment of C code that calculates the length. The second case is when a structure or a global variable contains a pointer to an array, like this: -@verbatim - tree * GTY ((length ("%h.regno_pointer_align_length"))) regno_decl; -@end verbatim +@smallexample +tree * + GTY ((length ("%h.regno_pointer_align_length"))) regno_decl; +@end smallexample In this case, @code{regno_decl} has been allocated by writing something like -@verbatim - x->regno_decl = ggc_alloc (x->regno_pointer_align_length * sizeof (tree)); -@end verbatim +@smallexample + x->regno_decl = + ggc_alloc (x->regno_pointer_align_length * sizeof (tree)); +@end smallexample and the @code{length} provides the length of the field. This second use of @code{length} also works on global variables, like: @verbatim -static GTY((length ("reg_base_value_size"))) rtx *reg_base_value; + static GTY((length ("reg_base_value_size"))) + rtx *reg_base_value; @end verbatim @findex skip @@ -126,17 +129,17 @@ field really isn't ever used. The type machinery needs to be told which field of a @code{union} is currently active. This is done by giving each field a constant @code{tag} value, and then specifying a discriminator using @code{desc}. For example, -@verbatim +@smallexample struct tree_binding GTY(()) -{ +@{ struct tree_common common; - union tree_binding_u { + union tree_binding_u @{ tree GTY ((tag ("0"))) scope; struct cp_binding_level * GTY ((tag ("1"))) level; - } GTY ((desc ("BINDING_HAS_LEVEL_P ((tree)&%0)"))) scope; + @} GTY ((desc ("BINDING_HAS_LEVEL_P ((tree)&%0)"))) scope; tree value; -}; -@end verbatim +@}; +@end smallexample In the @code{desc} option, the ``current structure'' is the union that it discriminates. Use @code{%1} to mean the structure containing it. |