From 789169d70d24ff2c1c9804f0149d0508de6dfcfa Mon Sep 17 00:00:00 2001
From: Enrique
Date: Mon, 6 Jan 2025 00:50:11 +0100
Subject: First upload

---
 bit/bit.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100755 bit/bit.c

(limited to 'bit/bit.c')

diff --git a/bit/bit.c b/bit/bit.c
new file mode 100755
index 0000000..a4924a0
--- /dev/null
+++ b/bit/bit.c
@@ -0,0 +1,54 @@
+#include "bit.h"
+
+
+u64 flp2(u64 x){
+	x |= (x >> 1);
+	x |= (x >> 2);
+	x |= (x >> 4);
+	x |= (x >> 8);
+	x |= (x >> 16);
+	x |= (x >> 32);
+	return x - (x >> 1);
+}
+
+u32 flp2_32(u32 x){
+	x |= (x >> 1);
+	x |= (x >> 2);
+	x |= (x >> 4);
+	x |= (x >> 8);
+	x |= (x >> 16);
+	return x - (x >> 1);
+}
+
+u64 clp2(u64 x){
+	x -= 1;
+	x |= (x >> 1);
+	x |= (x >> 2);
+	x |= (x >> 4);
+	x |= (x >> 8);
+	x |= (x >> 16);
+	x |= (x >> 32);
+	return x + 1;
+}
+
+u32 clp2_32(u32 x){
+	x -= 1;
+	x |= (x >> 1);
+	x |= (x >> 2);
+	x |= (x >> 4);
+	x |= (x >> 8);
+	x |= (x >> 16);
+	return x + 1;
+}
+
+void _bitstofile(void const * const ptr, size_t const size, FILE *fp){
+	unsigned char *b = (unsigned char*)ptr;
+	for(int i = size-1; i >= 0; i--){
+		for(int j = 7; j >= 0; j--){
+			unsigned char byte = ((b[i] >> j) & 1) ? '1' : '0';
+			fputc(byte, fp);
+		}
+		if(i != 0) fputc(' ', fp);
+	}
+}
+
-- 
cgit v1.2.3