From: Tim Peters <tim.peters@gmail.com>
Date: Fri, 5 Jan 2001 00:54:29 +0000 (+0000)
Subject: Fix signed/unsigned wng.  Unfortunately, (unsigned char) << int
X-Git-Tag: v2.1a1~408
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b8584e0894863ca5d069889a30e7b4c4564ed416;p=python

Fix signed/unsigned wng.  Unfortunately, (unsigned char) << int
has type int in C.
---

diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 45d21dd772..4dc2ddd8b7 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -570,8 +570,8 @@ maybe_pyc_file(FILE *fp, char* filename, char* ext, int closeit)
 		   be read as they are on disk. */
 		unsigned int halfmagic = PyImport_GetMagicNumber() & 0xFFFF;
 		unsigned char buf[2];
-		if (fread(buf, 1, 2, fp) == 2 
-		    && (buf[1]<<8 | buf[0]) == halfmagic)
+		if (fread(buf, 1, 2, fp) == 2
+		    && ((unsigned int)buf[1]<<8 | buf[0]) == halfmagic)
 			return 1;
 		fseek(fp, 0, SEEK_SET);
 	}