Add malloc error checking in new, mention the error case in the description and add assert(file) in openFd

1 files changed, 1 insertions, 1 deletions

diff --git a/src/cc4group.h b/src/cc4group.h
index d15f135..d79f6fe 100644
--- a/src/cc4group.h
+++ b/src/cc4group.h
@@ -57,8 +57,8 @@ typedef struct {
 
 	void (*setTmpMemoryStrategy)(const CC4Group_TmpMemoryStrategy strategy);
 
-
 	// allocates and initializes a new group object, like the operator new
+	// NULL may be returned if the memory allocation (malloc) fails; in this case errno contains additional error information
 	CC4Group* (*new)(void);
 	// destructs the group object and frees all memory used by group, like the operator delete
 	void (*delete)(CC4Group* const this);