Initial commit.

1 files changed, 56 insertions, 0 deletions

diff --git a/src/bin.rs b/src/bin.rs
new file mode 100644
index 0000000..2df3856
--- /dev/null
+++ b/src/bin.rs
@@ -0,0 +1,56 @@
+#[inline]
+pub fn i64_to_be(v: i64) -> [u8; 8] {
+    u64_to_be(v as u64)
+}
+
+pub fn i64_from_be(v: [u8; 8]) -> i64 {
+    u64_from_be(v) as i64
+}
+
+pub fn u64_to_be(v: u64) -> [u8; 8] {
+    [
+        (v >> 56) as u8,
+        (v >> 48) as u8,
+        (v >> 40) as u8,
+        (v >> 32) as u8,
+        (v >> 24) as u8,
+        (v >> 16) as u8,
+        (v >> 8) as u8,
+        v as u8,
+    ]
+}
+
+pub fn u64_from_be(v: [u8; 8]) -> u64 {
+    (u64::from(v[0]) << 56) |
+    (u64::from(v[1]) << 48) |
+    (u64::from(v[2]) << 40) |
+    (u64::from(v[3]) << 32) |
+    (u64::from(v[4]) << 24) |
+    (u64::from(v[5]) << 16) |
+    (u64::from(v[6]) << 8) |
+    u64::from(v[7])
+}
+
+pub fn u32_to_be(v: u32) -> [u8; 4] {
+    [
+        (v >> 24) as u8,
+        (v >> 16) as u8,
+        (v >> 8) as u8,
+        v as u8,
+    ]
+}
+
+pub fn u32_from_be(v: [u8; 4]) -> u32 {
+    (u32::from(v[0]) << 24) |
+    (u32::from(v[1]) << 16) |
+    (u32::from(v[2]) << 8) |
+    u32::from(v[3])
+}
+
+pub fn u16_to_be(v: u16) -> [u8; 2] {
+    [(v >> 8) as u8, v as u8]
+}
+
+pub fn u16_from_be(v: [u8; 2]) -> u16 {
+    (u16::from(v[0]) << 8) | u16::from(v[1])
+}