cleanup multibyte stuff to remove ugly casts, sanitize the ptr align casts

diff --git a/src/multibyte/internal.h b/src/multibyte/internal.h
index 427519a..ec52bdf 100644 (file)
--- a/src/multibyte/internal.h
+++ b/src/multibyte/internal.h
@@ -53,9 +53,9 @@ extern const uint32_t bittab[];
 #define FAILSTATE R(0x80,0x80)
 
 #ifdef I_FAILED_TO_RTFM_RFC3629
-#define SA 0xc2
-#define SB 0xfe
+#define SA 0xc2u
+#define SB 0xfeu
 #else
-#define SA 0xc2
-#define SB 0xf5
+#define SA 0xc2u
+#define SB 0xf5u
 #endif

diff --git a/src/multibyte/mbrtowc.c b/src/multibyte/mbrtowc.c
index 09badeb..a354573 100644 (file)
--- a/src/multibyte/mbrtowc.c
+++ b/src/multibyte/mbrtowc.c
@@ -15,7 +15,7 @@ size_t mbrtowc(wchar_t *wc, const char *src, size_t n, mbstate_t *st)
 {
        static unsigned internal_state;
        unsigned c;
-       const unsigned char *s = src;
+       const unsigned char *s = (const void *)src;
        const unsigned N = n;
 
        if (!st) st = (void *)&internal_state;
@@ -29,8 +29,8 @@ size_t mbrtowc(wchar_t *wc, const char *src, size_t n, mbstate_t *st)
 
        if (!n) return -2;
        if (!c) {
-               if ((unsigned)*s < 0x80) return !!(*wc = *s);
-               if ((unsigned)*s-SA > SB-SA) goto ilseq;
+               if (*s < 0x80) return !!(*wc = *s);
+               if (*s-SA > SB-SA) goto ilseq;
                c = bittab[*s++-SA]; n--;
        }
 
@@ -44,7 +44,7 @@ loop:
                        return N-n;
                }
                if (n) {
-                       if ((unsigned)*s-0x80 >= 0x40) goto ilseq;
+                       if (*s-0x80u >= 0x40) goto ilseq;
                        goto loop;
                }
        }

diff --git a/src/multibyte/mbsrtowcs.c b/src/multibyte/mbsrtowcs.c
index e2b4348..64399cf 100644 (file)
--- a/src/multibyte/mbsrtowcs.c
+++ b/src/multibyte/mbsrtowcs.c
@@ -14,7 +14,7 @@
 size_t mbsrtowcs(wchar_t *ws, const char **src, size_t wn, mbstate_t *st)
 {
        unsigned c;
-       const unsigned char *s = *src;
+       const unsigned char *s = (const void *)*src;
        const wchar_t *wsorig = ws;
 
        if (!st) st = (void *)&c, c = 0;
@@ -30,12 +30,12 @@ size_t mbsrtowcs(wchar_t *ws, const char **src, size_t wn, mbstate_t *st)
        }
 
        if (!ws) for (wn=0;;) {
-               if ((unsigned)*s-SA >= SB-SA) {
-                       while (((unsigned)s&3) && (unsigned)*s-1<0x7f) s++, wn++;
+               if (*s-SA >= SB-SA) {
+                       while (((uintptr_t)s&3) && *s-1u<0x7f) s++, wn++;
                        while (!(( *(uint32_t*)s | *(uint32_t*)s-0x01010101) & 0x80808080)) s+=4, wn+=4;
-                       while ((unsigned)*s-1<0x7f) s++, wn++;
+                       while (*s-1u<0x7f) s++, wn++;
                        if (!*s) return wn;
-                       if ((unsigned)*s-SA >= SB-SA) goto ilseq2;
+                       if (*s-SA >= SB-SA) goto ilseq2;
                }
                c = bittab[*s++-SA];
                do {
@@ -43,22 +43,22 @@ resume0:
                        if (OOB(c,*s)) goto ilseq2; s++;
                        c <<= 6; if (!(c&(1U<<31))) break;
 #ifdef I_FAILED_TO_RTFM_RFC3629
-                       if ((unsigned)*s++-0x80 >= 0x40) goto ilseq2;
+                       if (*s++-0x80u >= 0x40) goto ilseq2;
                        c <<= 6; if (!(c&(1U<<31))) break;
-                       if ((unsigned)*s++-0x80 >= 0x40) goto ilseq2;
+                       if (*s++-0x80u >= 0x40) goto ilseq2;
                        c <<= 6; if (!(c&(1U<<31))) break;
 #endif
-                       if ((unsigned)*s++-0x80 >= 0x40) goto ilseq2;
+                       if (*s++-0x80u >= 0x40) goto ilseq2;
                        c <<= 6; if (!(c&(1U<<31))) break;
-                       if ((unsigned)*s++-0x80 >= 0x40) goto ilseq2;
+                       if (*s++-0x80u >= 0x40) goto ilseq2;
                } while (0);
                wn++; c = 0;
        }
 
        while (wn) {
-               if ((unsigned)*s-SA >= SB-SA) {
+               if (*s-SA >= SB-SA) {
                        if (wn >= 7) {
-                               while (((unsigned)s&3) && (unsigned)*s-1<0x7f) {
+                               while (((uintptr_t)s&3) && *s-1u<0x7f) {
                                        *ws++ = *s++;
                                        wn--;
                                }
@@ -70,7 +70,7 @@ resume0:
                                        wn -= 4;
                                }
                        }
-                       while (wn && (unsigned)*s-1<0x7f) {
+                       while (wn && *s-1u<0x7f) {
                                *ws++ = *s++;
                                wn--;
                        }
@@ -80,7 +80,7 @@ resume0:
                                *src = 0;
                                return ws-wsorig;
                        }
-                       if ((unsigned)*s-SA >= SB-SA) goto ilseq;
+                       if (*s-SA >= SB-SA) goto ilseq;
                }
                c = bittab[*s++-SA];
                do {
@@ -90,29 +90,29 @@ resume:
                        if (!(c&(1U<<31))) break;
 
 #ifdef I_FAILED_TO_RTFM_RFC3629
-                       if ((unsigned)*s-0x80 >= 0x40) goto ilseq;
+                       if (*s-0x80u >= 0x40) goto ilseq;
                        c = (c<<6) | *s++-0x80;
                        if (!(c&(1U<<31))) break;
 
-                       if ((unsigned)*s-0x80 >= 0x40) goto ilseq;
+                       if (*s-0x80u >= 0x40) goto ilseq;
                        c = (c<<6) | *s++-0x80;
                        if (!(c&(1U<<31))) break;
 #endif
 
-                       if ((unsigned)*s-0x80 >= 0x40) goto ilseq;
+                       if (*s-0x80u >= 0x40) goto ilseq;
                        c = (c<<6) | *s++-0x80;
                        if (!(c&(1U<<31))) break;
 
-                       if ((unsigned)*s-0x80 >= 0x40) goto ilseq;
+                       if (*s-0x80u >= 0x40) goto ilseq;
                        c = (c<<6) | *s++-0x80;
                } while (0);
 
                *ws++ = c; wn--; c = 0;
        }
-       *src = s;
+       *src = (const void *)s;
        return ws-wsorig;
 ilseq:
-       *src = s;
+       *src = (const void *)s;
 ilseq2:
        /* enter permanently failing state */
        *(unsigned *)st = FAILSTATE;