* gas/mips/loc-swap.s: Add file missing from a previous commit.

[deliverable/binutils-gdb.git] / libiberty / regex.c

diff --git a/libiberty/regex.c b/libiberty/regex.c
index 779998278b9dbcc03b535816e4df50677d560766..d65eedb16704313a58f293c0c9e00600e51a29a2 100644 (file)
--- a/libiberty/regex.c
+++ b/libiberty/regex.c
@@ -2,7 +2,9 @@
    version 0.12.
    (Implements POSIX draft P1003.2/D11.2, except for some of the
    internationalization features.)
-   Copyright (C) 1993-1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+
+   Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+   2002, 2005, 2010 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -17,8 +19,8 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301 USA.  */
 
 /* This file has been modified for usage in libiberty.  It includes "xregex.h"
    instead of <regex.h>.  The "xregex.h" header file renames all external
@@ -1918,7 +1920,7 @@ static reg_errcode_t byte_compile_range (unsigned int range_start,
    ? (char) translate[(unsigned char) (d)] : (d))
 # else /* BYTE */
 #   define TRANSLATE(d) \
-  (translate ? (char) translate[(unsigned char) (d)] : (d))
+  (translate ? (char) translate[(unsigned char) (d)] : (char) (d))
 #  endif /* WCHAR */
 # endif
 
@@ -4968,7 +4970,7 @@ weak_alias (__re_search_2, re_search_2)
 #ifdef MATCH_MAY_ALLOCATE
 # define FREE_VAR(var) if (var) REGEX_FREE (var); var = NULL
 #else
-# define FREE_VAR(var) if (var) free (var); var = NULL
+# define FREE_VAR(var) free (var); var = NULL
 #endif
 
 #ifdef WCHAR
@@ -5908,11 +5910,14 @@ byte_re_match_2_internal (struct re_pattern_buffer *bufp,
            {
              /* 1 if this match ends in the same string (string1 or string2)
                 as the best previous match.  */
-             boolean same_str_p = (FIRST_STRING_P (match_end)
-                                   == MATCHING_IN_FIRST_STRING);
+             boolean same_str_p;
+
              /* 1 if this match is the best seen so far.  */
              boolean best_match_p;
 
+              same_str_p = (FIRST_STRING_P (match_end)
+                            == MATCHING_IN_FIRST_STRING);
+
              /* AIX compiler got confused when this was combined
                 with the previous declaration.  */
              if (same_str_p)
@@ -6172,9 +6177,9 @@ byte_re_match_2_internal (struct re_pattern_buffer *bufp,
            uint32_t nrules;
 # endif /* _LIBC */
 #endif /* WCHAR */
-           boolean not = (re_opcode_t) *(p - 1) == charset_not;
+           boolean negate = (re_opcode_t) *(p - 1) == charset_not;
 
-            DEBUG_PRINT2 ("EXECUTING charset%s.\n", not ? "_not" : "");
+            DEBUG_PRINT2 ("EXECUTING charset%s.\n", negate ? "_not" : "");
            PREFETCH ();
            c = TRANSLATE (*d); /* The character to match.  */
 #ifdef WCHAR
@@ -6541,20 +6546,20 @@ byte_re_match_2_internal (struct re_pattern_buffer *bufp,
              if (c == *workp)
                goto char_set_matched;
 
-           not = !not;
+           negate = !negate;
 
          char_set_matched:
-           if (not) goto fail;
+           if (negate) goto fail;
 #else
             /* Cast to `unsigned' instead of `unsigned char' in case the
                bit list is a full 32 bytes long.  */
            if (c < (unsigned) (*p * BYTEWIDTH)
                && p[1 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH)))
-             not = !not;
+             negate = !negate;
 
            p += 1 + *p;
 
-           if (!not) goto fail;
+           if (!negate) goto fail;
 #undef WORK_BUFFER_SIZE
 #endif /* WCHAR */
            SET_REGS_MATCHED ();
@@ -7044,15 +7049,15 @@ byte_re_match_2_internal (struct re_pattern_buffer *bufp,
                else if ((re_opcode_t) p1[3] == charset
                         || (re_opcode_t) p1[3] == charset_not)
                  {
-                   int not = (re_opcode_t) p1[3] == charset_not;
+                   int negate = (re_opcode_t) p1[3] == charset_not;
 
                    if (c < (unsigned) (p1[4] * BYTEWIDTH)
                        && p1[5 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH)))
-                     not = !not;
+                     negate = !negate;
 
-                    /* `not' is equal to 1 if c would match, which means
+                    /* `negate' is equal to 1 if c would match, which means
                         that we can't change to pop_failure_jump.  */
-                   if (!not)
+                   if (!negate)
                       {
                        p[-3] = (unsigned char) pop_failure_jump;
                         DEBUG_PRINT1 ("  No match => pop_failure_jump.\n");
@@ -7135,8 +7140,8 @@ byte_re_match_2_internal (struct re_pattern_buffer *bufp,
                register from the stack, since lowest will == highest in
                `pop_failure_point'.  */
             active_reg_t dummy_low_reg, dummy_high_reg;
-            UCHAR_T *pdummy = NULL;
-            const CHAR_T *sdummy = NULL;
+            UCHAR_T *pdummy ATTRIBUTE_UNUSED = NULL;
+            const CHAR_T *sdummy ATTRIBUTE_UNUSED = NULL;
 
             DEBUG_PRINT1 ("EXECUTING pop_failure_jump.\n");
             POP_FAILURE_POINT (sdummy, pdummy,
@@ -7814,7 +7819,7 @@ re_comp (const char *s)
   if (!s)
     {
       if (!re_comp_buf.buffer)
-       return gettext ("No previous regular expression");
+       return (char *) gettext ("No previous regular expression");
       return 0;
     }
 
@@ -7921,7 +7926,7 @@ regcomp (regex_t *preg, const char *pattern, int cflags)
 
   if (cflags & REG_ICASE)
     {
-      unsigned i;
+      int i;
 
       preg->translate
        = (RE_TRANSLATE_TYPE) malloc (CHAR_SET_SIZE
@@ -7931,7 +7936,7 @@ regcomp (regex_t *preg, const char *pattern, int cflags)
 
       /* Map uppercase characters to corresponding lowercase ones.  */
       for (i = 0; i < CHAR_SET_SIZE; i++)
-        preg->translate[i] = ISUPPER (i) ? TOLOWER (i) : (int) i;
+        preg->translate[i] = ISUPPER (i) ? TOLOWER (i) : i;
     }
   else
     preg->translate = NULL;
@@ -8106,20 +8111,17 @@ weak_alias (__regerror, regerror)
 void
 regfree (regex_t *preg)
 {
-  if (preg->buffer != NULL)
-    free (preg->buffer);
+  free (preg->buffer);
   preg->buffer = NULL;
 
   preg->allocated = 0;
   preg->used = 0;
 
-  if (preg->fastmap != NULL)
-    free (preg->fastmap);
+  free (preg->fastmap);
   preg->fastmap = NULL;
   preg->fastmap_accurate = 0;
 
-  if (preg->translate != NULL)
-    free (preg->translate);
+  free (preg->translate);
   preg->translate = NULL;
 }
 #ifdef _LIBC