diff options
Diffstat (limited to 'thirdparty/icu4c/common/uassert.h')
| -rw-r--r-- | thirdparty/icu4c/common/uassert.h | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/thirdparty/icu4c/common/uassert.h b/thirdparty/icu4c/common/uassert.h index afd31eeffd..5218752899 100644 --- a/thirdparty/icu4c/common/uassert.h +++ b/thirdparty/icu4c/common/uassert.h @@ -10,7 +10,7 @@ * * File uassert.h * -* Contains the U_ASSERT and UPRV_UNREACHABLE macros +* Contains the U_ASSERT and UPRV_UNREACHABLE_* macros * ****************************************************************************** */ @@ -38,14 +38,34 @@ #endif /** - * \def UPRV_UNREACHABLE + * \def UPRV_UNREACHABLE_ASSERT + * This macro is used in places that we had believed were unreachable, but + * experience has shown otherwise (possibly due to memory corruption, etc). + * In this case we call assert() in debug versions as with U_ASSERT, instead + * of unconditionally calling abort(). However we also allow redefinition as + * with UPRV_UNREACHABLE_EXIT. + * @internal +*/ +#if defined(UPRV_UNREACHABLE_ASSERT) + // Use the predefined value. +#elif U_DEBUG +# include <assert.h> +# define UPRV_UNREACHABLE_ASSERT assert(false) +#elif U_CPLUSPLUS_VERSION +# define UPRV_UNREACHABLE_ASSERT (void)0 +#else +# define UPRV_UNREACHABLE_ASSERT +#endif + +/** + * \def UPRV_UNREACHABLE_EXIT * This macro is used to unconditionally abort if unreachable code is ever executed. * @internal */ -#if defined(UPRV_UNREACHABLE) +#if defined(UPRV_UNREACHABLE_EXIT) // Use the predefined value. #else -# define UPRV_UNREACHABLE abort() +# define UPRV_UNREACHABLE_EXIT abort() #endif #endif |