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Dial back -Wimplicit-fallthrough to level 3

Browse Source 
The additional pain from level 4 is excessive for the gain.

Also revert all the source annotation changes to their original
wordings, to avoid back-patching pain.

Discussion: https://postgr.es/m/31166.1589378554@sss.pgh.pa.us
This commit is contained in:
Alvaro Herrera
2020-05-13 15:31:14 -04:00
parent 81ca868630
commit 17cc133f01
34 changed files with 194 additions and 199 deletions
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44
src/backend/regex/regc_pg_locale.c
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@ -303,7 +303,7 @@ pg_wc_isdigit(pg_wchar c)
case PG_REGEX_LOCALE_WIDE:
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswdigit((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
return (c <= (pg_wchar) UCHAR_MAX &&
isdigit((unsigned char) c));
@ -312,7 +312,7 @@ pg_wc_isdigit(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswdigit_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
return (c <= (pg_wchar) UCHAR_MAX &&
@ -339,7 +339,7 @@ pg_wc_isalpha(pg_wchar c)
case PG_REGEX_LOCALE_WIDE:
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswalpha((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
return (c <= (pg_wchar) UCHAR_MAX &&
isalpha((unsigned char) c));
@ -348,7 +348,7 @@ pg_wc_isalpha(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswalpha_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
return (c <= (pg_wchar) UCHAR_MAX &&
@ -375,7 +375,7 @@ pg_wc_isalnum(pg_wchar c)
case PG_REGEX_LOCALE_WIDE:
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswalnum((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
return (c <= (pg_wchar) UCHAR_MAX &&
isalnum((unsigned char) c));
@ -384,7 +384,7 @@ pg_wc_isalnum(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswalnum_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
return (c <= (pg_wchar) UCHAR_MAX &&
@ -411,7 +411,7 @@ pg_wc_isupper(pg_wchar c)
case PG_REGEX_LOCALE_WIDE:
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswupper((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
return (c <= (pg_wchar) UCHAR_MAX &&
isupper((unsigned char) c));
@ -420,7 +420,7 @@ pg_wc_isupper(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswupper_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
return (c <= (pg_wchar) UCHAR_MAX &&
@ -447,7 +447,7 @@ pg_wc_islower(pg_wchar c)
case PG_REGEX_LOCALE_WIDE:
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswlower((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
return (c <= (pg_wchar) UCHAR_MAX &&
islower((unsigned char) c));
@ -456,7 +456,7 @@ pg_wc_islower(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswlower_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
return (c <= (pg_wchar) UCHAR_MAX &&
@ -483,7 +483,7 @@ pg_wc_isgraph(pg_wchar c)
case PG_REGEX_LOCALE_WIDE:
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswgraph((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
return (c <= (pg_wchar) UCHAR_MAX &&
isgraph((unsigned char) c));
@ -492,7 +492,7 @@ pg_wc_isgraph(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswgraph_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
return (c <= (pg_wchar) UCHAR_MAX &&
@ -519,7 +519,7 @@ pg_wc_isprint(pg_wchar c)
case PG_REGEX_LOCALE_WIDE:
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswprint((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
return (c <= (pg_wchar) UCHAR_MAX &&
isprint((unsigned char) c));
@ -528,7 +528,7 @@ pg_wc_isprint(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswprint_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
return (c <= (pg_wchar) UCHAR_MAX &&
@ -555,7 +555,7 @@ pg_wc_ispunct(pg_wchar c)
case PG_REGEX_LOCALE_WIDE:
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswpunct((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
return (c <= (pg_wchar) UCHAR_MAX &&
ispunct((unsigned char) c));
@ -564,7 +564,7 @@ pg_wc_ispunct(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswpunct_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
return (c <= (pg_wchar) UCHAR_MAX &&
@ -591,7 +591,7 @@ pg_wc_isspace(pg_wchar c)
case PG_REGEX_LOCALE_WIDE:
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswspace((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
return (c <= (pg_wchar) UCHAR_MAX &&
isspace((unsigned char) c));
@ -600,7 +600,7 @@ pg_wc_isspace(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return iswspace_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
return (c <= (pg_wchar) UCHAR_MAX &&
@ -631,7 +631,7 @@ pg_wc_toupper(pg_wchar c)
return pg_ascii_toupper((unsigned char) c);
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return towupper((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
/* force C behavior for ASCII characters, per comments above */
if (c <= (pg_wchar) 127)
@ -644,7 +644,7 @@ pg_wc_toupper(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return towupper_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
if (c <= (pg_wchar) UCHAR_MAX)
@ -675,7 +675,7 @@ pg_wc_tolower(pg_wchar c)
return pg_ascii_tolower((unsigned char) c);
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return towlower((wint_t) c);
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE:
/* force C behavior for ASCII characters, per comments above */
if (c <= (pg_wchar) 127)
@ -688,7 +688,7 @@ pg_wc_tolower(pg_wchar c)
if (sizeof(wchar_t) >= 4 || c <= (pg_wchar) 0xFFFF)
return towlower_l((wint_t) c, pg_regex_locale->info.lt);
#endif
/* FALLTHROUGH */
/* FALL THRU */
case PG_REGEX_LOCALE_1BYTE_L:
#ifdef HAVE_LOCALE_T
if (c <= (pg_wchar) UCHAR_MAX)