=head1 NAME
-BUF_MEM_FLAG_SECURE,
BUF_MEM_new, BUF_MEM_new_ex, BUF_MEM_free, BUF_MEM_grow
BUF_MEM_grow_clean, BUF_reverse
- simple character array structure
BUF_MEM *BUF_MEM_new(void);
- #define BUF_MEM_FLAG_SECURE
-
BUF_MEM *BUF_MEM_new_ex(unsigned long flags);
void BUF_MEM_free(BUF_MEM *a);