Add new function memvcmp and unit tests

1 files changed, 5 insertions, 1 deletions

diff --git a/src/extlib.h b/src/extlib.h
index 1948352..15903c3 100644
--- a/src/extlib.h
+++ b/src/extlib.h
@@ -25,7 +25,7 @@
 #define malloc(x) error - use malloc_secure
 
 /// Automatically zero out a pointer before freeing it
-void free_secure (void *__ptr, size_t ptrlen);
+void free_secure (void **__ptr, size_t ptrlen);
 
 /// Automatically initialise the allocated memory with zeros
 void *malloc_secure (size_t len);
@@ -33,6 +33,10 @@ void *malloc_secure (size_t len);
 /// Copy the data of one filestream to another
 void fcopy(FILE *f1, FILE *f2);
 
+/// Compare the first n bytes of a memory area str to the value val.
+/// Returns 0 if the values the same, any other value if they are not the same.
+int memvcmp (void *str, char val, size_t n);
+
 /// Convert a string to lowercase
 char *strlwr(char *s);