diff options
Diffstat (limited to 'gl/verify.h')
| -rw-r--r-- | gl/verify.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/gl/verify.h b/gl/verify.h index e5065ffa00..9a8caad001 100644 --- a/gl/verify.h +++ b/gl/verify.h @@ -164,10 +164,13 @@ (!!sizeof (_GL_VERIFY_TYPE (R, DIAGNOSTIC))) # ifdef __cplusplus +# if !GNULIB_defined_struct__gl_verify_type template <int w> struct _gl_verify_type { unsigned int _gl_verify_error_if_negative: w; }; +# define GNULIB_defined_struct__gl_verify_type 1 +# endif # define _GL_VERIFY_TYPE(R, DIAGNOSTIC) \ _gl_verify_type<(R) ? 1 : -1> # elif defined _GL_HAVE__STATIC_ASSERT @@ -204,7 +207,9 @@ template <int w> # if !defined _GL_HAVE_STATIC_ASSERT && !defined static_assert # define static_assert _Static_assert /* Draft C1X requires this #define. */ # endif -# else +# endif + +/* @assert.h omit start@ */ /* Each of these macros verifies that its argument R is nonzero. To be portable, R should be an integer constant expression. Unlike @@ -216,15 +221,23 @@ template <int w> contexts, e.g., the top level. */ /* Verify requirement R at compile-time, as an integer constant expression. - Return 1. */ + Return 1. This is equivalent to verify_expr (R, 1). -# define verify_true(R) _GL_VERIFY_TRUE (R, "verify_true (" #R ")") + verify_true is obsolescent; please use verify_expr instead. */ + +# define verify_true(R) _GL_VERIFY_TRUE (R, "verify_true (" #R ")") + +/* Verify requirement R at compile-time. Return the value of the + expression E. */ + +# define verify_expr(R, E) \ + (_GL_VERIFY_TRUE (R, "verify_expr (" #R ", " #E ")") ? (E) : (E)) /* Verify requirement R at compile-time, as a declaration without a trailing ';'. */ -# define verify(R) _GL_VERIFY (R, "verify (" #R ")") +# define verify(R) _GL_VERIFY (R, "verify (" #R ")") -# endif +/* @assert.h omit end@ */ #endif |