remove dependency to SIZEOF_VOIDP

1 files changed, 8 insertions, 169 deletions

diff --git a/src/string.c b/src/string.c
index da52172f7..9556f93e8 100644
--- a/src/string.c
+++ b/src/string.c
@@ -211,38 +211,12 @@ single_byte_optimizable(mrb_state *mrb, mrb_value str)
 static inline const char *
 search_nonascii(const char *p, const char *e)
 {
-#if SIZEOF_VALUE == 8
-# define NONASCII_MASK 0x8080808080808080ULL
-#elif SIZEOF_VALUE == 4
-# define NONASCII_MASK 0x80808080UL
-#endif
-#ifdef NONASCII_MASK
-    if ((int)sizeof(intptr_t) * 2 < e - p) {
-        const intptr_t *s, *t;
-        const intptr_t lowbits = sizeof(intptr_t) - 1;
-        s = (const intptr_t*)(~lowbits & ((intptr_t)p + lowbits));
-        while (p < (const char *)s) {
-            if (!ISASCII(*p))
-                return p;
-            p++;
-        }
-        t = (const intptr_t*)(~lowbits & (intptr_t)e);
-        while (s < t) {
-	    if (*s & (intptr_t)NONASCII_MASK) {
-                t = s;
-                break;
-            }
-            s++;
-        }
-        p = (const char *)t;
-    }
-#endif
-    while (p < e) {
-        if (!ISASCII(*p))
-            return p;
-        p++;
-    }
-    return NULL;
+  while (p < e) {
+    if (!ISASCII(*p))
+      return p;
+    p++;
+  }
+  return NULL;
 }
 #endif //INCLUDE_ENCODING
 
@@ -1167,63 +1141,6 @@ mrb_str_match(mrb_state *mrb, mrb_value self/* x */)
   }
 }
 /* ---------------------------------- */
-#ifdef INCLUDE_ENCODING
-#ifdef NONASCII_MASK
-#define is_utf8_lead_byte(c) (((c)&0xC0) != 0x80)
-static inline int
-count_utf8_lead_bytes_with_word(const intptr_t *s)
-{
-    int d = *s;
-    d |= ~(d>>1);
-    d >>= 6;
-    d &= NONASCII_MASK >> 7;
-    d += (d>>8);
-    d += (d>>16);
-#if SIZEOF_VALUE == 8
-    d += (d>>32);
-#endif
-    return (d&0xF);
-}
-#endif
-
-#ifdef NONASCII_MASK
-static char *
-str_utf8_nth(const char *p, const char *e, long nth)
-{
-  if ((int)SIZEOF_VALUE < e - p && (int)SIZEOF_VALUE * 2 < nth) {
-    const intptr_t *s, *t;
-    const intptr_t lowbits = sizeof(int) - 1;
-    s = (const intptr_t*)(~lowbits & ((intptr_t)p + lowbits));
-    t = (const intptr_t*)(~lowbits & (intptr_t)e);
-    while (p < (const char *)s) {
-        if (is_utf8_lead_byte(*p)) nth--;
-        p++;
-    }
-    do {
-        nth -= count_utf8_lead_bytes_with_word(s);
-        s++;
-    } while (s < t && (int)sizeof(intptr_t) <= nth);
-    p = (char *)s;
-  }
-  while (p < e) {
-    if (is_utf8_lead_byte(*p)) {
-        if (nth == 0) break;
-        nth--;
-    }
-    p++;
-  }
-  return (char *)p;
-}
-
-static long
-str_utf8_offset(const char *p, const char *e, long nth)
-{
-    const char *pp = str_utf8_nth(p, e, nth);
-    return pp - p;
-}
-#endif
-#endif //INCLUDE_ENCODING
-
 mrb_value
 mrb_str_substr(mrb_state *mrb, mrb_value str, mrb_int beg, int len)
 {
@@ -1283,13 +1200,6 @@ mrb_str_substr(mrb_state *mrb, mrb_value str, mrb_int beg, int len)
   if (len == 0) {
     p = 0;
   }
-#ifdef NONASCII_MASK
-  else if (ENC_CODERANGE(str) == ENC_CODERANGE_VALID &&
-    enc == mrb_utf8_encoding(mrb)) {
-    p = str_utf8_nth(s, e, beg);
-    len = str_utf8_offset(p, e, len);
-  }
-#endif
   else if (mrb_enc_mbmaxlen(enc) == mrb_enc_mbminlen(enc)) {
     int char_sz = mrb_enc_mbmaxlen(enc);
 
@@ -1406,46 +1316,6 @@ mrb_enc_strlen_cr(mrb_state *mrb, const char *p, const char *e, mrb_encoding *en
 
 #ifndef INCLUDE_ENCODING
 static inline long
-mrb_memsearch_ss(const unsigned char *xs, long m, const unsigned char *ys, long n)
-{
-  const unsigned char *x = xs, *xe = xs + m;
-  const unsigned char *y = ys, *ye = ys + n;
-//2011/06/30 #define SIZEOF_VALUE 4
-#ifndef VALUE_MAX
-# if SIZEOF_VALUE == 8
-#  define VALUE_MAX 0xFFFFFFFFFFFFFFFFULL
-# elif SIZEOF_VALUE == 4
-#  define VALUE_MAX 0xFFFFFFFFUL
-# elif SIZEOF_LONG == SIZEOF_VOIDP
-#  define SIZEOF_VALUE 4
-#  define VALUE_MAX 0xFFFFFFFFUL
-# endif
-#endif
-  int hx, hy, mask = VALUE_MAX >> ((SIZEOF_VALUE - m) * CHAR_BIT);
-
-  if (m > SIZEOF_VALUE)
-    mrb_bug("!!too long pattern string!!");
-
-  /* Prepare hash value */
-  for (hx = *x++, hy = *y++; x < xe; ++x, ++y) {
-    hx <<= CHAR_BIT;
-    hy <<= CHAR_BIT;
-    hx |= *x;
-    hy |= *y;
-  }
-  /* Searching */
-  while (hx != hy) {
-    if (y == ye)
-        return -1;
-    hy <<= CHAR_BIT;
-    hy |= *y;
-    hy &= mask;
-    y++;
-  }
-  return y - ys - m;
-}
-
-static inline long
 mrb_memsearch_qs(const unsigned char *xs, long m, const unsigned char *ys, long n)
 {
   const unsigned char *x = xs, *xe = xs + m;
@@ -1464,6 +1334,7 @@ mrb_memsearch_qs(const unsigned char *xs, long m, const unsigned char *ys, long
   }
   return -1;
 }
+
 int
 mrb_memsearch(const void *x0, int m, const void *y0, int n)
 {
@@ -1484,12 +1355,7 @@ mrb_memsearch(const void *x0, int m, const void *y0, int n)
     }
     return -1;
   }
-  else if (m <= SIZEOF_VALUE) {
-    return mrb_memsearch_ss(x0, m, y0, n);
-  }
-  else {
-    return mrb_memsearch_qs(x0, m, y0, n);
-  }
+  return mrb_memsearch_qs(x0, m, y0, n);
 }
 #endif //INCLUDE_ENCODING
 
@@ -1507,33 +1373,6 @@ str_strlen(mrb_state *mrb, mrb_value str, mrb_encoding *enc)
     p = RSTRING_PTR(str);
     e = RSTRING_END(str);
     cr = ENC_CODERANGE(str);
-#ifdef NONASCII_MASK
-    if (ENC_CODERANGE(str) == ENC_CODERANGE_VALID &&
-        enc == mrb_utf8_encoding(mrb)) {
-
-    int len = 0;
-    if ((int)sizeof(intptr_t) * 2 < e - p) {
-        const intptr_t *s, *t;
-        const intptr_t lowbits = sizeof(int) - 1;
-        s = (const intptr_t*)(~lowbits & ((intptr_t)p + lowbits));
-        t = (const intptr_t*)(~lowbits & (intptr_t)e);
-        while (p < (const char *)s) {
-        if (is_utf8_lead_byte(*p)) len++;
-        p++;
-        }
-        while (s < t) {
-        len += count_utf8_lead_bytes_with_word(s);
-        s++;
-        }
-        p = (const char *)s;
-    }
-    while (p < e) {
-        if (is_utf8_lead_byte(*p)) len++;
-        p++;
-    }
-    return (long)len;
-    }
-#endif
     n = mrb_enc_strlen_cr(mrb, p, e, enc, &cr);
     if (cr) {
         ENC_CODERANGE_SET(str, cr);