commit 13b28063f9f2a3d2a587eabac358452a42277052 Author: rl1987 <rl1987@sdf.lonestar.org> Date: Fri Mar 22 12:57:58 2019 +0200 Compile time check for being able to fit {unsigned} int inside void pointer --- configure.ac | 1 + src/test/test_ptr_slow.c | 9 +++++++++ 2 files changed, 10 insertions(+) diff --git a/configure.ac b/configure.ac index 6036cdffe..8ac2d71e4 100644 --- a/configure.ac +++ b/configure.ac @@ -1588,6 +1588,7 @@ AC_CHECK_MEMBERS([struct timeval.tv_sec], , , AC_CHECK_SIZEOF(char) AC_CHECK_SIZEOF(short) AC_CHECK_SIZEOF(int) +AC_CHECK_SIZEOF(unsigned int) AC_CHECK_SIZEOF(long) AC_CHECK_SIZEOF(long long) AC_CHECK_SIZEOF(__int64) diff --git a/src/test/test_ptr_slow.c b/src/test/test_ptr_slow.c index 0142fd1c8..37560d435 100644 --- a/src/test/test_ptr_slow.c +++ b/src/test/test_ptr_slow.c @@ -11,6 +11,15 @@ #include <stdint.h> #include <limits.h> +#if SIZEOF_INT > SIZEOF_VOID_P +#error "sizeof(int) > sizeof(void *) - Tor cannot be built on this platform!" +#endif + +#if SIZEOF_UNSIGNED_INT > SIZEOF_VOID_P +#error "sizeof(unsigned int) > sizeof(void *) - Tor cannot be built on this \ +platform!" +#endif + /** Assert that <b>a</b> can be cast to void * and back. */ static void assert_int_voidptr_roundtrip(int a)