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Changes to m4/m4/symtab.c,v
From: |
Eric Blake |
Subject: |
Changes to m4/m4/symtab.c,v |
Date: |
Wed, 28 Feb 2007 21:31:14 +0000 |
CVSROOT: /sources/m4
Module name: m4
Changes by: Eric Blake <ericb> 07/02/28 21:31:13
Index: m4/symtab.c
===================================================================
RCS file: /sources/m4/m4/m4/symtab.c,v
retrieving revision 1.70
retrieving revision 1.71
diff -u -b -r1.70 -r1.71
--- m4/symtab.c 27 Jan 2007 00:25:14 -0000 1.70
+++ m4/symtab.c 28 Feb 2007 21:31:12 -0000 1.71
@@ -32,15 +32,16 @@
simply ordered on the stack by age. The most recently pushed definition
will then always be the first found.
- Also worthy of mention is the way traced symbols are managed: the trace
- bit is associated with a particular symbol name. If a symbol is
- undefined and then redefined, it does not lose its trace bit (in GNU
- mode). This is achieved by not removing traced symbol names from the
- symbol table, even if their value stack is empty. That way, when the
- name is given a new value, it is pushed onto the empty stack, and the
- trace bit attached to the name was never lost. There is a small amount
- of fluff in these functions to make sure that such symbols (with empty
- value stacks) are invisible to the users of this module. */
+ Also worthy of mention is the way traced symbols are managed: the
+ trace bit is associated with a particular symbol name. If a symbol
+ is undefined and then redefined, it does not lose its trace bit.
+ This is achieved by not removing traced symbol names from the
+ symbol table, even if their value stack is empty. That way, when
+ the name is given a new value, it is pushed onto the empty stack,
+ and the trace bit attached to the name was never lost. There is a
+ small amount of fluff in these functions to make sure that such
+ symbols (with empty value stacks) are invisible to the users of
+ this module. */
#define M4_SYMTAB_DEFAULT_SIZE 2047
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