cpplex.c (cpp_idcmp): New function.

	* cpplex.c (cpp_idcmp): New function.
	* cpplib.h: Prototype it.
	* scan_decls.c (scan_decls): Use it to inspect token names.
	* fix-header.c (read_scan_file): Likewise.  Set system_header_p on
	the file being run through the preprocessor.
	(check_macro_names): Provide length of token to cpp_defined.

	* Makefile.in: Remove stale warning message.

From-SVN: r33552

1 files changed, 31 insertions, 0 deletions

diff --git a/gcc/cpplex.c b/gcc/cpplex.c
index 182ab25..59d9665 100644
--- a/gcc/cpplex.c
+++ b/gcc/cpplex.c
@@ -2048,6 +2048,37 @@ _cpp_init_input_buffer (pfile)
   pfile->input_buffer_len = 8192;
 }
 
+/* Utility routine:
+   Compares, in the manner of strcmp(3), the token beginning at TOKEN
+   and extending for LEN characters to the NUL-terminated string
+   STRING.  Typical usage:
+
+   if (! cpp_idcmp (pfile->token_buffer + here, CPP_WRITTEN (pfile) - here,
+                 "inline"))
+     { ... }
+ */
+
+int
+cpp_idcmp (token, len, string)
+     const U_CHAR *token;
+     size_t len;
+     const char *string;
+{
+  size_t len2 = strlen (string);
+  int r;
+
+  if ((r = memcmp (token, string, MIN (len, len2))))
+    return r;
+
+  /* The longer of the two strings sorts after the shorter.  */
+  if (len == len2)
+    return 0;
+  else if (len < len2)
+    return -1;
+  else
+    return 1;
+}
+
 #if 0
 
 /* Lexing algorithm.