liblinux++

commit 46abafe5da58b323497c5f060300aeb225e9600e
parent 28b4618122eb17819ebeb2344774c6a47733519b
Author: Henry Wilson <henry@henryandlizzy.uk>
Date:   Tue, 23 Dec 2025 14:44:38 +0000

Use static cast to extract syscall result

Diffstat:
M
linux.hpp
 | 
23
++++++++++++-----------

1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/linux.hpp b/linux.hpp
@@ -32,15 +32,15 @@ enum {
 	MAP_SHARED = 0x1,
 	MAP_PRIVATE = 0x2,
 
-    DT_UNKNOWN = 0,
-    DT_FIFO = 1,
-    DT_CHR = 2,
-    DT_DIR = 4,
-    DT_BLK = 6,
-    DT_REG = 8,
-    DT_LNK = 10,
-    DT_SOCK = 12,
-    DT_WHT = 14,
+	DT_UNKNOWN = 0,
+	DT_FIFO = 1,
+	DT_CHR = 2,
+	DT_DIR = 4,
+	DT_BLK = 6,
+	DT_REG = 8,
+	DT_LNK = 10,
+	DT_SOCK = 12,
+	DT_WHT = 14,
 };
 
 template <typename T>
@@ -62,6 +62,7 @@ struct span
 
 struct file
 {
+	explicit file(int n) : num{n} {}
 	int num = -1;
 	inline operator bool() const { return num >= 0; }
 };
@@ -88,13 +89,13 @@ struct syscall_result
 	{
 		if (!*this)
 			__builtin_trap();
-		return *reinterpret_cast<T const*>(&val);
+		return static_cast<T>(val);
 	}
 	errno_t err() const
 	{
 		if (*this)
 			__builtin_trap();
-		return reinterpret_cast<errno_t>(static_cast<int16_t>(val));
+		return static_cast<errno_t>(val);
 	}
 private:
 	int64_t val;