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style: reduce: use unsigned to count a number of objects

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* src/reduce.h, src/reduce.c (nuseful_productions, nuseless_productions)
(nuseful_nonterminals, nuseless_nonterminals): Declare as unsigned.
Simplify "0 <" tests into non-zero tests.
This commit is contained in:
Akim Demaille
2015-01-13 17:27:57 +01:00
parent 8b06c6b871
commit c03a8db0cc
2 changed files with 12 additions and 12 deletions
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20
src/reduce.c
View File

@@ -52,10 +52,10 @@ static bitset V;
'useless', but no warning should be issued). */
static bitset V1;
static rule_number nuseful_productions;
rule_number nuseless_productions;
static int nuseful_nonterminals;
symbol_number nuseless_nonterminals;
static unsigned nuseful_productions;
unsigned nuseless_productions;
static unsigned nuseful_nonterminals;
unsigned nuseless_nonterminals;
#define bitset_swap(Lhs, Rhs) \
do { \
@@ -343,7 +343,7 @@ nonterminals_reduce (void)
void
reduce_output (FILE *out)
{
if (0 < nuseless_nonterminals)
if (nuseless_nonterminals)
{
int i;
fprintf (out, "%s\n\n", _("Nonterminals useless in grammar"));
@@ -367,7 +367,7 @@ reduce_output (FILE *out)
fputs ("\n\n", out);
}
if (0 < nuseless_productions)
if (nuseless_productions)
grammar_rules_partial_print (out, _("Rules useless in grammar"),
rule_useless_in_grammar_p);
}
@@ -380,12 +380,12 @@ reduce_output (FILE *out)
static void
reduce_print (void)
{
if (0 < nuseless_nonterminals)
if (nuseless_nonterminals)
complain (NULL, Wother, ngettext ("%d nonterminal useless in grammar",
"%d nonterminals useless in grammar",
nuseless_nonterminals),
nuseless_nonterminals);
if (0 < nuseless_productions)
if (nuseless_productions)
complain (NULL, Wother, ngettext ("%d rule useless in grammar",
"%d rules useless in grammar",
nuseless_productions),
@@ -419,9 +419,9 @@ reduce_grammar (void)
/* First reduce the nonterminals, as they renumber themselves in the
whole grammar. If you change the order, nonterms would be
renumbered only in the reduced grammar. */
if (0 < nuseless_nonterminals)
if (nuseless_nonterminals)
nonterminals_reduce ();
if (0 < nuseless_productions)
if (nuseless_productions)
reduce_grammar_tables ();
if (trace_flag & trace_grammar)

4
src/reduce.h
View File

@@ -27,6 +27,6 @@ bool reduce_token_unused_in_grammar (symbol_number i);
bool reduce_nonterminal_useless_in_grammar (symbol_number i);
void reduce_free (void);
extern symbol_number nuseless_nonterminals;
extern rule_number nuseless_productions;
extern unsigned nuseless_nonterminals;
extern unsigned nuseless_productions;
#endif /* !REDUCE_H_ */