include/c.h: add MAX_OF_UINT_TYPE macro to get max num of an uint type

Signed-off-by: Christian Goeschel Ndjomouo <cgoesc2@wgu.edu>

diff --git a/include/c.h b/include/c.h
index 0126591f2b6e30c29f6ab1aa4e45f69f95c31c47..e74a4486bf97d722ed85c3af05d616e892c11083 100644 (file)
--- a/include/c.h
+++ b/include/c.h
@@ -652,6 +652,7 @@ static inline int fputsln(const char *s, FILE *stream) {
 #endif
 
 #define SINT_MAX(t) (((t)1 << (sizeof(t) * 8 - 2)) - (t)1 + ((t)1 << (sizeof(t) * 8 - 2)))
+#define MAX_OF_UINT_TYPE(t) ~((t)0)
 
 #ifndef HAVE_REALLOCARRAY
 static inline void *reallocarray(void *ptr, size_t nmemb, size_t size)