mirror of
https://git.FreeBSD.org/ports.git
synced 2024-10-22 20:41:26 +00:00
40 lines
1.4 KiB
C++
40 lines
1.4 KiB
C++
--- lib/endian.hh.orig Fri Feb 13 19:17:38 2004
|
|
+++ lib/endian.hh Fri Feb 13 19:17:38 2004
|
|
@@ -0,0 +1,36 @@
|
|
+#ifndef _endian_hh_
|
|
+#define _endian_hh_
|
|
+
|
|
+/* quick and dirty endian conversion macros; applicable on big-endian
|
|
+ * architectures. This works okay on big- and little-endian machines, but
|
|
+ * not on middle-endian ones, should the "Linux on PDP-11" thing ever get
|
|
+ * past the April Fool's stage.
|
|
+ */
|
|
+
|
|
+#if __BYTE_ORDER == __BIG_ENDIAN
|
|
+
|
|
+static inline u_int16_t letohs(u_int16_t n) { return (n<<8)|(n>>8); }
|
|
+static inline u_int32_t letohl(u_int32_t n) {
|
|
+ return (n<<24) | ((n&0xff00)<<8) | ((n&0xff0000)>>8) | (n>>24);
|
|
+}
|
|
+static inline u_int16_t htoles(u_int16_t n) { return letohs(n); }
|
|
+static inline u_int32_t htolel(u_int32_t n) { return letohl(n); }
|
|
+
|
|
+static inline int16_t letohs_s(int16_t n) {
|
|
+ unsigned char *p = (unsigned char *)&n, tmp;
|
|
+ tmp = p[0]; p[0] = p[1]; p[1] = tmp;
|
|
+ return n;
|
|
+}
|
|
+static inline int16_t htoles_s(int16_t n) { return letohs_s(n); }
|
|
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
|
|
+static inline u_int16_t letohs(u_int16_t n) { return n; }
|
|
+static inline u_int32_t letohl(u_int32_t n) { return n; }
|
|
+static inline u_int16_t htoles(u_int16_t n) { return n; }
|
|
+static inline u_int32_t htolel(u_int32_t n) { return n; }
|
|
+
|
|
+static inline int16_t letohs_s(int16_t n) { return n; }
|
|
+static inline int16_t htoles_s(int16_t n) { return n; }
|
|
+#endif
|
|
+
|
|
+#endif
|
|
+
|