Prefer signed types for indexes in skeletons

* NEWS: Mention this.
* data/skeletons/c.m4 (b4_int_type):
Prefer char if it will do, and prefer signed types to unsigned if
either will do.
* data/skeletons/glr.c (yy_reduce_print): No need to
convert rule line to unsigned long.
(yyrecoverSyntaxError): Put action into an int to
avoid GCC warning of using a char subscript.
* data/skeletons/lalr1.cc (yy_lac_check_, yysyntax_error_):
Prefer ptrdiff_t to size_t.
* data/skeletons/yacc.c (b4_int_type):
Prefer signed types to unsigned if either will do.
* data/skeletons/yacc.c (b4_declare_parser_state_variables):
(YYSTACK_RELOCATE, YYCOPY, yy_lac_stack_realloc, yy_lac)
(yytnamerr, yysyntax_error, yyparse): Prefer ptrdiff_t to size_t.
(YYPTRDIFF_T, YYPTRDIFF_MAXIMUM): New macros.
(YYSIZE_T): Fix "! defined YYSIZE_T" typo.
(YYSIZE_MAXIMUM): Take the minimum of PTRDIFF_MAX and SIZE_MAX.
(YYSIZEOF): New macro.
(YYSTACK_GAP_MAXIMUM, YYSTACK_BYTES, YYSTACK_RELOCATE)
(yy_lac_stack_realloc, yyparse): Use it.
(YYCOPY, yy_lac_stack_realloc): Cast to YYSIZE_T to pacify GCC.
(yy_reduce_print): Use int instead of unsigned long when int
will do.
(yy_lac_stack_realloc): Prefer long to unsigned long when
either will do.
* tests/regression.at: Adjust to these changes.

1 files changed, 8 insertions, 8 deletions

diff --git a/tests/regression.at b/tests/regression.at
index 7ec9ed57..1f308e90 100644
--- a/tests/regression.at
+++ b/tests/regression.at
@@ -661,7 +661,7 @@ AT_BISON_CHECK([-v -o input.c input.y])
 [sed -n 's/  *$//;/^static const.*\[\] =/,/^}/p' input.c >tables.c]
 
 AT_CHECK([[cat tables.c]], 0,
-[[static const yytype_uint8 yytranslate[] =
+[[static const yytype_int8 yytranslate[] =
 {
        0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
@@ -691,7 +691,7 @@ AT_CHECK([[cat tables.c]], 0,
        2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
        5,     6
 };
-static const yytype_uint8 yyrline[] =
+static const yytype_int8 yyrline[] =
 {
        0,     2,     2,     3,     3,     4,     5
 };
@@ -700,7 +700,7 @@ static const char *const yytname[] =
   "$end", "error", "$undefined", "\"if\"", "\"const\"", "\"then\"",
   "\"else\"", "$accept", "statement", "struct_stat", "if", "else", YY_NULLPTR
 };
-static const yytype_uint16 yytoknum[] =
+static const yytype_int16 yytoknum[] =
 {
        0,   256,   257,   258,   259,   260,   261
 };
@@ -709,7 +709,7 @@ static const yytype_int8 yypact[] =
       -2,    -1,     4,    -8,     0,     2,    -8,    -2,    -8,    -2,
       -8,    -8
 };
-static const yytype_uint8 yydefact[] =
+static const yytype_int8 yydefact[] =
 {
        3,     0,     0,     2,     0,     0,     1,     3,     4,     3,
        6,     5
@@ -722,7 +722,7 @@ static const yytype_int8 yydefgoto[] =
 {
       -1,     2,     3,     4,     8
 };
-static const yytype_uint8 yytable[] =
+static const yytype_int8 yytable[] =
 {
       10,     1,    11,     5,     6,     0,     7,     9
 };
@@ -730,16 +730,16 @@ static const yytype_int8 yycheck[] =
 {
        7,     3,     9,     4,     0,    -1,     6,     5
 };
-static const yytype_uint8 yystos[] =
+static const yytype_int8 yystos[] =
 {
        0,     3,     8,     9,    10,     4,     0,     6,    11,     5,
        8,     8
 };
-static const yytype_uint8 yyr1[] =
+static const yytype_int8 yyr1[] =
 {
        0,     7,     8,     9,     9,    10,    11
 };
-static const yytype_uint8 yyr2[] =
+static const yytype_int8 yyr2[] =
 {
        0,     2,     1,     0,     2,     4,     2
 };