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scripts/unifdef: avoid constexpr keyword 

Starting with c23, 'constexpr' is a keyword in C like in C++ and cannot
be used as an identifier:

scripts/unifdef.c:206:25: error: 'constexpr' can only be used in variable declarations
  206 | static bool             constexpr;              /* constant #if expression */
      |                         ^
scripts/unifdef.c:880:13: error: expected identifier or '('
  880 |                 constexpr = false;
      |                           ^

Rename this instance to allow changing to C23 at some point in the future.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-By: Tony Finch <dot@dotat.at>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Arnd Bergmann 2024-04-08 09:17:52 +02:00 committed by Masahiro Yamada
parent 72a9913a85
commit 10f94d8fcc
1 changed files with 6 additions and 6 deletions
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12
scripts/unifdef.c
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@ -203,7 +203,7 @@ static int depth; /* current #if nesting */
static int delcount; /* count of deleted lines */
static unsigned blankcount; /* count of blank lines */
static unsigned blankmax; /* maximum recent blankcount */
static bool constexpr; /* constant #if expression */
static bool constexpression; /* constant #if expression */
static bool zerosyms = true; /* to format symdepth output */
static bool firstsym; /* ditto */
@ -819,7 +819,7 @@ static const struct ops {
/*
* Function for evaluating the innermost parts of expressions,
* viz. !expr (expr) number defined(symbol) symbol
* We reset the constexpr flag in the last two cases.
* We reset the constexpression flag in the last two cases.
*/
static Linetype
eval_unary(const struct ops *ops, int *valp, const char **cpp)
@ -877,7 +877,7 @@ eval_unary(const struct ops *ops, int *valp, const char **cpp)
cp = skipcomment(cp);
if (defparen && *cp++ != ')')
return (LT_ERROR);
constexpr = false;
constexpression = false;
} else if (!endsym(*cp)) {
debug("eval%d symbol", ops - eval_ops);
sym = findsym(cp);
@ -895,7 +895,7 @@ eval_unary(const struct ops *ops, int *valp, const char **cpp)
lt = *valp ? LT_TRUE : LT_FALSE;
cp = skipargs(cp);
}
constexpr = false;
constexpression = false;
} else {
debug("eval%d bad expr", ops - eval_ops);
return (LT_ERROR);
@ -955,10 +955,10 @@ ifeval(const char **cpp)
int val = 0;
debug("eval %s", *cpp);
constexpr = killconsts ? false : true;
constexpression = killconsts ? false : true;
ret = eval_table(eval_ops, &val, cpp);
debug("eval = %d", val);
return (constexpr ? LT_IF : ret == LT_ERROR ? LT_IF : ret);
return (constexpression ? LT_IF : ret == LT_ERROR ? LT_IF : ret);
}
/*