quicker %

src/common/util/base36.c

@@ -29,82 +29,82 @@
 int
 atoi36(const char * str)
 {
-	/* cannot use strtol, becuase invalid strings will cause crash */
+  /* cannot use strtol, becuase invalid strings will cause crash */
-	const unsigned char * s = (const unsigned char *)str;
+  const unsigned char * s = (const unsigned char *)str;
-	int i = 0;
+  int i = 0;
-	assert(s);
+  assert(s);
-	if(!(*s)) return 0;
+  if(!(*s)) return 0;
 
-	while(isspace((int)*s)) ++s;
+  while(isspace((int)*s)) ++s;
-	while(isalnum((int)*s)) {
+  while(isalnum((int)*s)) {
-		if (isupper((int)*s)) i = i*36 + (*s)-'A' + 10;
+    if (isupper((int)*s)) i = i*36 + (*s)-'A' + 10;
-		else if (islower((int)*s)) i=i*36 + (*s)-'a' + 10;
+    else if (islower((int)*s)) i=i*36 + (*s)-'a' + 10;
-		else if (isdigit((int)*s)) i=i*36 + (*s)-'0';
+    else if (isdigit((int)*s)) i=i*36 + (*s)-'0';
-		else
+    else
-			break;
+      break;
-		++s;
+    ++s;
-	}
+  }
-	if (i<0) return 0;
+  if (i<0) return 0;
-	return i;
+  return i;
 }
 
 const char*
 itoab(int i, int base)
 {
-	static char **as = NULL;
+  static char **as = NULL;
-	char * s, * dst;
+  char * s, * dst;
-	static int index = 0;
+  static int index = 0;
-	int neg = 0;
+  int neg = 0;
 
-	if (!as) {
+  if (!as) {
-		int j;
+    int j;
-		char * x = (char*)calloc(sizeof(char), 8*4);
+    char * x = (char*)calloc(sizeof(char), 8*4);
-		as = (char **)calloc(sizeof(char*), 4);
+    as = (char **)calloc(sizeof(char*), 4);
-		for (j=0;j!=4;++j) as[j] = x+j*8;
+    for (j=0;j!=4;++j) as[j] = x+j*8;
-	}
+  }
-	s = as[index];
+  s = as[index];
-	index = (index+1) % 4;
+  index = (index+1) & 3; /* quick for % 4 */
-	dst = s+7;
+  dst = s+7;
-	(*dst--)=0;
+  (*dst--)=0;
-	if (i!=0) {
+  if (i!=0) {
-		if (i<0) {
+    if (i<0) {
-			i=-i;
+      i=-i;
-			neg = 1;
+      neg = 1;
-		}
+    }
-		while (i) {
+    while (i) {
-			int x = i % base;
+      int x = i % base;
-			i = i / base;
+      i = i / base;
-			if (x<10) *(dst--) = (char)('0' + x);
+      if (x<10) *(dst--) = (char)('0' + x);
-			else if ('a' + x - 10 == 'l') *(dst--) = 'L';
+      else if ('a' + x - 10 == 'l') *(dst--) = 'L';
-			else *(dst--) = (char)('a' + (x-10));
+      else *(dst--) = (char)('a' + (x-10));
-		}
+    }
-		if (neg) *(dst) = '-';
+    if (neg) *(dst) = '-';
-		else ++dst;
+    else ++dst;
-	}
+  }
-	else *dst = '0';
+  else *dst = '0';
 
-	return dst;
+  return dst;
 }
 
 const char*
 itoa36(int i)
 {
-	return itoab(i, 36);
+  return itoab(i, 36);
 }
 
 const char*
 itoa10(int i)
 {
-	return itoab(i, 10);
+  return itoab(i, 10);
 }
 
 int
 i10toi36(int i)
 {
-	int r = 0;
+  int r = 0;
-	while(i) {
+  while(i) {
-		r = r*36 + i % 10;
+    r = r*36 + i % 10;
-		i = i / 10;
+    i = i / 10;
-	}
+  }
-	return r;
+  return r;
 }