1 files changed, 24 insertions, 0 deletions
diff --git a/binary.c b/binary.c
new file mode 100644
index 0000000..bba7dd0
--- /dev/null
+++ b/binary.c
@@ -0,0 +1,24 @@
+#include <stdint.h>
+#include <string.h>
+
+#include "binary.h"
+
+uintmax_t binary(const char *s)
+{
+	char array[BINSTRLEN];
+	memset(array, '0', sizeof(array));
+	strcpy(array + (sizeof(array) - strlen(s)) - 1, s);
+	return BIN_FROM_ARRAY(array);
+}
+
+char *binstr(size_t n, char s[n], uintmax_t b)
+{
+	memset(s, '0', n);
+	s[n - 1] = '\0';
+	for (size_t i = 0; i < n - 2 && i < BIN_UINTMAXBITS; i++) {
+		if (b & ((uintmax_t)1 << i)) {
+			s[n - (i + 2)] = '1';
+		}
+	}
+	return s;
+}