feat: add readunalighed 16bit support (bytedance#46)

Co-authored-by: Ye Li <[email protected]> Co-authored-by: ZhangYunHao <[email protected]>
weylan · Jun 4, 2021 · 1031037 · 1031037
1 parent 6d4403f
commit 1031037
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diff --git a/internal/runtimex/readunaligned.go b/internal/runtimex/readunaligned.go
@@ -33,3 +33,8 @@ func ReadUnaligned32(p unsafe.Pointer) uint64 {
 	q := (*[4]byte)(p)
 	return uint64(uint32(q[0]) | uint32(q[1])<<8 | uint32(q[2])<<16 | uint32(q[3])<<24)
 }
+
+func ReadUnaligned16(p unsafe.Pointer) uint64 {
+	q := (*[2]byte)(p)
+	return uint64(uint32(q[0]) | uint32(q[1])<<8)
+}
diff --git a/internal/runtimex/readunaligned_bigendian.go b/internal/runtimex/readunaligned_bigendian.go
@@ -34,3 +34,8 @@ func ReadUnaligned32(p unsafe.Pointer) uint64 {
 	q := (*[4]byte)(p)
 	return uint64(uint32(q[3]) | uint32(q[2])<<8 | uint32(q[1])<<16 | uint32(q[0])<<24)
 }
+
+func ReadUnaligned16(p unsafe.Pointer) uint64 {
+	q := (*[2]byte)(p)
+	return uint64(uint32(q[1]) | uint32(q[0])<<8)
+}