Get rid of "unary minus applied to unsigned type" warning.

diff --git a/crypto/rc4/rc4_enc.c b/crypto/rc4/rc4_enc.c
index d5f18a3a707040a30801dcc7344d001bb5b214fb..0660ea60a25e90e0d8f7c0231552b0660ea9ee25 100644 (file)
--- a/crypto/rc4/rc4_enc.c
+++ b/crypto/rc4/rc4_enc.c
@@ -157,7 +157,7 @@ void RC4(RC4_KEY *key, unsigned long len, const unsigned char *indata,
                if (!is_endian.little)
                        {       /* BIG-ENDIAN CASE */
 # define BESHFT(c)     (((sizeof(RC4_CHUNK)-(c)-1)*8)&(sizeof(RC4_CHUNK)*8-1))
-                       for (;len&-sizeof(RC4_CHUNK);len-=sizeof(RC4_CHUNK))
+                       for (;len&~(sizeof(RC4_CHUNK)-1);len-=sizeof(RC4_CHUNK))
                                {
                                ichunk  = *(RC4_CHUNK *)indata;
                                otp  = RC4_STEP<<BESHFT(0);
@@ -210,7 +210,7 @@ void RC4(RC4_KEY *key, unsigned long len, const unsigned char *indata,
                else
                        {       /* LITTLE-ENDIAN CASE */
 # define LESHFT(c)     (((c)*8)&(sizeof(RC4_CHUNK)*8-1))
-                       for (;len&-sizeof(RC4_CHUNK);len-=sizeof(RC4_CHUNK))
+                       for (;len&~(sizeof(RC4_CHUNK)-1);len-=sizeof(RC4_CHUNK))
                                {
                                ichunk  = *(RC4_CHUNK *)indata;
                                otp  = RC4_STEP;