Check sector and cluster size before use.

[android-x86/external-exfat.git] / libexfat / compiler.h

diff --git a/libexfat/compiler.h b/libexfat/compiler.h
index 45e8581..1a4742e 100644 (file)
--- a/libexfat/compiler.h
+++ b/libexfat/compiler.h
@@ -3,11 +3,12 @@
        Compiler-specific definitions. Note that unknown compiler is not a
        showstopper.
 
-       Copyright (C) 2010-2013  Andrew Nayenko
+       Free exFAT implementation.
+       Copyright (C) 2010-2015  Andrew Nayenko
 
-       This program is free software: you can redistribute it and/or modify
+       This program is free software; you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
-       the Free Software Foundation, either version 3 of the License, or
+       the Free Software Foundation, either version 2 of the License, or
        (at your option) any later version.
 
        This program is distributed in the hope that it will be useful,
@@ -15,8 +16,9 @@
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.
 
-       You should have received a copy of the GNU General Public License
-       along with this program.  If not, see <http://www.gnu.org/licenses/>.
+       You should have received a copy of the GNU General Public License along
+       with this program; if not, write to the Free Software Foundation, Inc.,
+       51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
 #ifndef COMPILER_H_INCLUDED
@@ -26,11 +28,23 @@
 #error C99-compliant compiler is required
 #endif
 
-#if defined(__GNUC__) /* this includes Clang */
+#if defined(__clang__)
 
 #define PRINTF __attribute__((format(printf, 1, 2)))
-#define NORETURN __attribute((noreturn))
+#define NORETURN __attribute__((noreturn))
 #define PACKED __attribute__((packed))
+#if __has_extension(c_static_assert)
+#define USE_C11_STATIC_ASSERT
+#endif
+
+#elif defined(__GNUC__)
+
+#define PRINTF __attribute__((format(printf, 1, 2)))
+#define NORETURN __attribute__((noreturn))
+#define PACKED __attribute__((packed))
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+#define USE_C11_STATIC_ASSERT
+#endif
 
 #else
 
@@ -40,9 +54,13 @@
 
 #endif
 
+#ifdef USE_C11_STATIC_ASSERT
+#define STATIC_ASSERT(cond) _Static_assert(cond, #cond)
+#else
 #define CONCAT2(a, b) a ## b
 #define CONCAT1(a, b) CONCAT2(a, b)
 #define STATIC_ASSERT(cond) \
        extern void CONCAT1(static_assert, __LINE__)(int x[(cond) ? 1 : -1])
+#endif
 
 #endif /* ifndef COMPILER_H_INCLUDED */