X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/c0b1cd463d680c1690999e7066fcc75b2c903752..0f04e364d7fbc468666a577249d3520794930d1b:/testsuite/xbt/ex_test.c

diff --git a/testsuite/xbt/ex_test.c b/testsuite/xbt/ex_test.c
index 7302ad3388..0053beeab8 100644
--- a/testsuite/xbt/ex_test.c
+++ b/testsuite/xbt/ex_test.c
@@ -225,3 +225,73 @@ int main(int argc, char *argv[])
     return n;
 }
 
+
+/*
+ * The following is the example included in the documentation. It's a good 
+ * idea to check its syntax even if we don't try to run it.
+ * And actually, it allows to put comments in the code despite doxygen.
+ */ 
+static char *mallocex(int size) {
+  return NULL;
+}
+#define SMALLAMOUNT 10
+#define TOOBIG 100000000
+
+#if 0 /* this contains syntax errors, actually */
+static void bad_example(void) {
+  struct {char*first;} *globalcontext;
+  ex_t ex;
+
+  /* BAD_EXAMPLE */
+  xbt_try {
+    char *cp1, *cp2, *cp3;
+    
+    cp1 = mallocex(SMALLAMOUNT);
+    globalcontext->first = cp1;
+    cp2 = mallocex(TOOBIG);
+    cp3 = mallocex(SMALLAMOUNT);
+    strcpy(cp1, "foo");
+    strcpy(cp2, "bar");
+  } xbt_cleanup {
+    if (cp3 != NULL) free(cp3);
+    if (cp2 != NULL) free(cp2);
+    if (cp1 != NULL) free(cp1);
+  } xbt_catch(ex) {
+    printf("cp3=%s", cp3);
+    xbt_rethrow;
+  }
+  /* end_of_bad_example */
+}
+#endif
+
+static void good_example(void) {
+  struct {char*first;} *globalcontext;
+  ex_t ex;
+
+  /* GOOD_EXAMPLE */
+  { /*01*/
+    char * volatile /*03*/ cp1 = NULL /*02*/;
+    char * volatile /*03*/ cp2 = NULL /*02*/;
+    char * volatile /*03*/ cp3 = NULL /*02*/;
+    xbt_try {
+      cp1 = mallocex(SMALLAMOUNT);
+      globalcontext->first = cp1;
+      cp1 = NULL /*05 give away*/;
+      cp2 = mallocex(TOOBIG);
+      cp3 = mallocex(SMALLAMOUNT);
+      strcpy(cp1, "foo");
+      strcpy(cp2, "bar");
+    } xbt_cleanup { /*04*/
+      printf("cp3=%s", cp3 == NULL /*02*/ ? "" : cp3);
+      if (cp3 != NULL)
+	free(cp3);
+      if (cp2 != NULL)
+	free(cp2);
+      /*05 cp1 was given away */
+    } xbt_catch(ex) {
+      /*05 global context untouched */
+      xbt_rethrow;
+    }
+  }
+  /* end_of_good_example */
+}