commit 75bdf6aa30a5c99d67c42886cf7a4a000bbaa422
author Bram Moolenaar <Bram@vim.org> Thu Jan 07 21:25:08 2016 +0100
committer Bram Moolenaar <Bram@vim.org> Thu Jan 07 21:25:08 2016 +0100
tree e3e1a3fea418f892524eeec3cb0c2eaa31f5ad61
parent 2b7db933b0418f3964da5399047ce8998007874c

patch 7.4.1058
Problem:    It is not possible to test code that is only reached when memory
            allocation fails.
Solution:   Add the alloc_fail() function.  Try it out with :vimgrep.

src/quickfix.c

diff --git a/src/quickfix.c b/src/quickfix.c
index 758f792..1fda311 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -253,9 +253,9 @@
 			{'s', ".\\+"}
 		    };
 
-    namebuf = alloc(CMDBUFFSIZE + 1);
-    errmsg = alloc(CMDBUFFSIZE + 1);
-    pattern = alloc(CMDBUFFSIZE + 1);
+    namebuf = alloc_id(CMDBUFFSIZE + 1, 3);
+    errmsg = alloc_id(CMDBUFFSIZE + 1, 4);
+    pattern = alloc_id(CMDBUFFSIZE + 1, 5);
     if (namebuf == NULL || errmsg == NULL || pattern == NULL)
 	goto qf_init_end;
 
@@ -3465,8 +3465,8 @@
 	goto theend;
     }
 
-    dirname_start = alloc(MAXPATHL);
-    dirname_now = alloc(MAXPATHL);
+    dirname_start = alloc_id(MAXPATHL, 1);
+    dirname_now = alloc_id(MAXPATHL, 2);
     if (dirname_start == NULL || dirname_now == NULL)
 	goto theend;