core: Adjust clang-format guards of external files

src/core/model/cairo-wideint-private.h

@@ -25,10 +25,13 @@
  * The Initial Developer of the Original Code is Keith Packard
  *
  * Contributor(s):
- *	Keith R. Packard <keithp@keithp.com>
+ *    Keith R. Packard <keithp@keithp.com>
  *
  */
 
+// NOLINTBEGIN
+// clang-format off
+
 #ifndef CAIRO_WIDEINT_H
 #define CAIRO_WIDEINT_H
 
@@ -48,9 +51,6 @@
 // extern const char * cairo_impl64;
 // extern const char * cairo_impl128;
 
-// NOLINTBEGIN
-// clang-format off
-
 /*for compatibility with MacOS and Cygwin*/
 #ifndef HAVE_STDINT_H
 #ifdef __APPLE__
@@ -356,11 +356,11 @@ _cairo_int_96by64_32x64_divrem (cairo_int128_t num,
 
 #undef I
 
-    // clang-format on
-    // NOLINTEND
-
 #ifdef __cplusplus
 };
 #endif
 
 #endif /* CAIRO_WIDEINT_H */
+
+// clang-format on
+// NOLINTEND

src/core/model/cairo-wideint.c

@@ -1,4 +1,3 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /* cairo - a vector graphics library with display and print output
  *
  * Copyright © 2004 Keith Packard
@@ -26,11 +25,14 @@
  * The Initial Developer of the Original Code is Keith Packard
  *
  * Contributor(s):
- *	Keith R. Packard <keithp@keithp.com>
+ *    Keith R. Packard <keithp@keithp.com>
  *
  * Code changes for ns-3 from upstream are marked with `//PDB'
  */
 
+// NOLINTBEGIN
+// clang-format off
+
 #include "cairo-wideint-private.h"
 
 #include <climits>
@@ -41,9 +43,6 @@
  * Implementation of the cairo_x functions which implement high precision arithmetic.
  */
 
-// NOLINTBEGIN
-// clang-format off
-
 #if HAVE_UINT64_T
 
 const char * cairo_impl64 = "uint64_t";

src/core/model/hash-fnv.cc

@@ -69,12 +69,14 @@ namespace Fnv1aImplementation
 
 extern "C"
 {
-    // Changes from FNV distribution are marked with `//PDB'
-    //
-
     // NOLINTBEGIN
     // clang-format off
 
+// Changes from FNV distribution are marked with `//PDB'
+//
+
+/* Begin fnv.h ----------------------------------------> */
+
 /*
  * fnv - Fowler/Noll/Vo- hash code
  *
@@ -296,6 +298,10 @@ enum fnv_type {
 
 #endif /* __FNV_H__ */
 
+/* End fnv.h ------------------------------------------> */
+
+/* Begin hash_32a.c -----------------------------------> */
+
 /*
  * hash_32 - 32 bit Fowler/Noll/Vo FNV-1a hash code
  *
@@ -439,6 +445,10 @@ fnv_32a_str(char *str, Fnv32_t hval)
     return hval;
 }
 
+/* End hash_32a.c -------------------------------------> */
+
+/* Begin hash_64a.c -----------------------------------> */
+
 /*
  * hash_64 - 64 bit Fowler/Noll/Vo-0 FNV-1a hash code
  *
@@ -731,6 +741,8 @@ fnv_64a_str(char *str, Fnv64_t hval)
     return hval;
 }
 
+/* End hash_64a.c -------------------------------------> */
+
     // clang-format on
     // NOLINTEND
 

src/core/model/valgrind.h

@@ -55,6 +55,9 @@
    ----------------------------------------------------------------
 */
 
+// NOLINTBEGIN
+// clang-format off
+
 /* This file is for inclusion into client (your!) code.
 
    You can use these macros to manipulate and query Valgrind's
@@ -69,8 +72,6 @@
    problem, you can compile with the NVALGRIND symbol defined (gcc
    -DNVALGRIND) so that client requests are not even compiled in.  */
 
-// clang-format off
-
 #ifndef __VALGRIND_H
 #define __VALGRIND_H
 
@@ -5625,3 +5626,4 @@ VALGRIND_PRINTF_BACKTRACE(const char *format, ...)
 #endif   /* __VALGRIND_H */
 
 // clang-format on
+// NOLINTEND