Compiler warnings

git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@760 632fc199-4ca6-4c93-a231-07263d6284db

jcdctmgr.c

@@ -182,7 +182,7 @@ compute_reciprocal (UINT16 divisor, DCTELEM * dtbl)
     /* fq will be one bit too large to fit in DCTELEM, so adjust */
     fq >>= 1;
     r--;
-  } else if (fr <= (divisor / 2)) { /* fractional part is < 0.5 */
+  } else if (fr <= (divisor / 2U)) { /* fractional part is < 0.5 */
     c++;
   } else { /* fractional part is > 0.5 */
     fq++;

simd/jsimd_arm.c

@@ -104,7 +104,7 @@ init_simd (void)
   int bufsize = 1024; /* an initial guess for the line buffer size limit */
 #endif
 
-  if (simd_support != ~0)
+  if (simd_support != ~0U)
     return;
 
   simd_support = 0;

simd/jsimd_i386.c

@@ -41,7 +41,7 @@ init_simd (void)
 {
   char *env = NULL;
 
-  if (simd_support != ~0)
+  if (simd_support != ~0U)
     return;
 
   simd_support = jpeg_simd_cpu_support();