[PATCH 1/1] RISC-V: Add Zfbfmin extension to the -march= option

[thirdparty/gcc.git] / libiberty / basename.c

diff --git a/libiberty/basename.c b/libiberty/basename.c
index f544c853910c243cc58302176f22fcd431ff6b90..0f2c069f0ccf5a7d91e4913548e068c247e12efb 100644 (file)
--- a/libiberty/basename.c
+++ b/libiberty/basename.c
@@ -2,36 +2,61 @@
    This file is in the public domain. */
 
 /*
-NAME
-       basename -- return pointer to last component of a pathname
 
-SYNOPSIS
-       char *basename (const char *name)
+@deftypefn Supplemental char* basename (const char *@var{name})
 
-DESCRIPTION
-       Given a pointer to a string containing a typical pathname
-       (/usr/src/cmd/ls/ls.c for example), returns a pointer to the
-       last component of the pathname ("ls.c" in this case).
+Returns a pointer to the last component of pathname @var{name}.
+Behavior is undefined if the pathname ends in a directory separator.
+
+@end deftypefn
 
-BUGS
-       Presumes a UNIX style path with UNIX style separators.
 */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 #include "ansidecl.h"
 #include "libiberty.h"
+#include "safe-ctype.h"
+
+#ifndef DIR_SEPARATOR
+#define DIR_SEPARATOR '/'
+#endif
+
+#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
+  defined (__OS2__)
+#define HAVE_DOS_BASED_FILE_SYSTEM
+#ifndef DIR_SEPARATOR_2 
+#define DIR_SEPARATOR_2 '\\'
+#endif
+#endif
+
+/* Define IS_DIR_SEPARATOR.  */
+#ifndef DIR_SEPARATOR_2
+# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
+#else /* DIR_SEPARATOR_2 */
+# define IS_DIR_SEPARATOR(ch) \
+       (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
+#endif /* DIR_SEPARATOR_2 */
 
 char *
-basename (name)
-     const char *name;
+basename (const char *name)
 {
-  const char *base = name;
+  const char *base;
+
+#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
+  /* Skip over the disk name in MSDOS pathnames. */
+  if (ISALPHA (name[0]) && name[1] == ':') 
+    name += 2;
+#endif
 
-  while (*name)
+  for (base = name; *name; name++)
     {
-      if (*name++ == '/')
+      if (IS_DIR_SEPARATOR (*name))
        {
-         base = name;
+         base = name + 1;
        }
     }
   return (char *) base;
 }
+