From: Fred Drake <fdrake@acm.org>
Date: Mon, 14 Aug 2000 15:47:03 +0000 (+0000)
Subject: Add a byte_order value to the sys module.  The value is "big" for
X-Git-Tag: v2.0b1~463
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=099325e01b9c244bdaf96e072829195243caced9;p=thirdparty%2FPython%2Fcpython.git

Add a byte_order value to the sys module.  The value is "big" for
big-endian machines and "little" for little-endian machines.
---

diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index 8883ba1d87e2..2ae6d20f5c7a 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -456,6 +456,19 @@ _PySys_Init(void)
 	PyDict_SetItemString(sysdict, "builtin_module_names",
 		   v = list_builtin_module_names());
 	Py_XDECREF(v);
+	{
+		/* Assumes that longs are at least 2 bytes long.
+		   Should be safe! */
+		unsigned long number = 1;
+
+		s = (char *) &number;
+		if (s[0] == 0)
+			PyDict_SetItemString(sysdict, "byte_order",
+					     PyString_FromString("big"));
+		else
+			PyDict_SetItemString(sysdict, "byte_order",
+					     PyString_FromString("little"));
+	}
 #ifdef MS_COREDLL
 	PyDict_SetItemString(sysdict, "dllhandle",
 			     v = PyLong_FromVoidPtr(PyWin_DLLhModule));