Add libexif to deps/third_party.

libexif/sources/test/test-integers.c

+/** \file test-integers.c
+ * \brief Check assumptions about integer types (sizes, ranges).
+ *
+ * Copyright (C) 2007 Hans Ulrich Niedermann <gp@n-dimensional.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details. 
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301  USA.
+ */
+
+
+#include "libexif/_stdint.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+
+typedef enum {
+   EN_A,
+   EN_B,
+   EN_C,
+   EN_D,
+   EN_E,
+   EN_F
+} enum_t;
+
+
+#if defined(__GNUC__) && (__GNUC__ >= 4)
+# define CHECK(condition)                                            \
+        if (!(condition)) {                                          \
+                fprintf(stderr, "%s:%d: check failed: %s\n",         \
+                        __FILE__, __LINE__, #condition);             \
+                errors++;                                            \
+        }
+#else
+# define CHECK(condition)                                            \
+        if (!(condition)) {                                          \
+                abort();                                             \
+        }
+#endif
+
+
+int main()
+{
+  unsigned int errors = 0;
+
+  /* libexif assumes unsigned ints are not smaller than 32bit in many places */
+  CHECK(sizeof(unsigned int) >= sizeof(uint32_t));
+
+  /* libexif assumes that enums fit into ints */
+  CHECK(sizeof(enum_t) <= sizeof(int));
+  
+  return (errors>0)?1:0;
+}