Document new {,s}printf() behavior

[p5sagit/p5-mst-13.2.git] / scope.h

diff --git a/scope.h b/scope.h
index d6eb270..debe1f8 100644 (file)
--- a/scope.h
+++ b/scope.h
@@ -96,16 +96,25 @@ struct jmpenv {
 typedef struct jmpenv JMPENV;
 
 #define dJMPENV                JMPENV cur_env
-#define JMPENV_PUSH    (cur_env.je_prev = top_env,                     \
-                        cur_env.je_ret = Sigsetjmp(cur_env.je_buf,1),  \
-                        top_env = &cur_env,                            \
-                        cur_env.je_mustcatch = FALSE,                  \
-                        cur_env.je_ret)
-#define JMPENV_POP     (top_env = cur_env.je_prev)
-#define JMPENV_JUMP(v) (top_env->je_prev ? Siglongjmp(top_env->je_buf, (v))    \
-                        : ((v) == 2) ? exit(STATUS_NATIVE_EXPORT)              \
-                        : (PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"), \
-                            exit(1)))
+#define JMPENV_PUSH(v) \
+    STMT_START {                                       \
+       cur_env.je_prev = top_env;                      \
+       cur_env.je_ret = Sigsetjmp(cur_env.je_buf, 1);  \
+       top_env = &cur_env;                             \
+       cur_env.je_mustcatch = FALSE;                   \
+       (v) = cur_env.je_ret;                           \
+    } STMT_END
+#define JMPENV_POP \
+    STMT_START { top_env = cur_env.je_prev; } STMT_END
+#define JMPENV_JUMP(v) \
+    STMT_START {                                               \
+       if (top_env->je_prev)                                   \
+           Siglongjmp(top_env->je_buf, (v));                   \
+       if ((v) == 2)                                           \
+           exit(STATUS_NATIVE_EXPORT);                         \
+       PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");     \
+       exit(1);                                                \
+    } STMT_END
    
 #define CATCH_GET      (top_env->je_mustcatch)
 #define CATCH_SET(v)   (top_env->je_mustcatch = (v))