grep: move logic to compile header pattern into a separate helper

diff --git a/base85.c b/base85.c
index 24ddf60eb0a20f35efcdc2d37f99e46d94e8f5c9..781b5754f0e533008694e71ac7cfe2e52b2d0ac6 100644 (file)
--- a/base85.c
+++ b/base85.c
@@ -7,9 +7,9 @@
 #define say1(a,b) fprintf(stderr, a, b)
 #define say2(a,b,c) fprintf(stderr, a, b, c)
 #else
-#define say(a) do {} while(0)
-#define say1(a,b) do {} while(0)
-#define say2(a,b,c) do {} while(0)
+#define say(a) do { /* nothing */ } while (0)
+#define say1(a,b) do { /* nothing */ } while (0)
+#define say2(a,b,c) do { /* nothing */ } while (0)
 #endif
 
 static const char en85[] = {
@@ -83,7 +83,7 @@ void encode_85(char *buf, const unsigned char *data, int bytes)
                unsigned acc = 0;
                int cnt;
                for (cnt = 24; cnt >= 0; cnt -= 8) {
-                       int ch = *data++;
+                       unsigned ch = *data++;
                        acc |= ch << cnt;
                        if (--bytes == 0)
                                break;