From 1c6fd95a7006feb591619396ccb046687e6d3dda Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Fri, 7 Apr 2023 10:56:49 +0200
Subject: [PATCH] Result: Add from_syscall()

---
 libluna/include/luna/Result.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libluna/include/luna/Result.h b/libluna/include/luna/Result.h
index 39fda591..265453bc 100644
--- a/libluna/include/luna/Result.h
+++ b/libluna/include/luna/Result.h
@@ -148,6 +148,13 @@ template <typename T> class Result
             return Error { error };
     }
 
+    static Result<T> from_syscall(long rc)
+    {
+        if (rc < 0) return Error { (int)-rc };
+        else
+            return (T)rc;
+    }
+
   private:
     Option<T> m_value;
     int m_error;