9.34

CPP/Common/IntToString.cpp

@@ -4,74 +4,143 @@
 
 #include "IntToString.h"
 
-void ConvertUInt64ToString(UInt64 value, char *s, UInt32 base)
+#define CONVERT_INT_TO_STR(charType, tempSize) \
+  unsigned char temp[tempSize]; unsigned i = 0; \
+  while (val >= 10) { temp[i++] = (unsigned char)('0' + (unsigned)(val % 10)); val /= 10; } \
+  *s++ = (charType)('0' + (unsigned)val); \
+  while (i != 0) { i--; *s++ = temp[i]; } \
+  *s = 0;
+
+void ConvertUInt32ToString(UInt32 val, char *s)
 {
-  if (base < 2 || base > 36)
+  CONVERT_INT_TO_STR(char, 16);
+}
+
+void ConvertUInt64ToString(UInt64 val, char *s)
+{
+  if (val <= (UInt32)0xFFFFFFFF)
   {
-    *s = '\0';
+    ConvertUInt32ToString((UInt32)val, s);
     return;
   }
-  char temp[72];
-  int pos = 0;
-  do
-  {
-    int delta = (int)(value % base);
-    temp[pos++] = (char)((delta < 10) ? ('0' + delta) : ('a' + (delta - 10)));
-    value /= base;
-  }
-  while (value != 0);
-  do
-    *s++ = temp[--pos];
-  while (pos > 0);
-  *s = '\0';
+  CONVERT_INT_TO_STR(char, 24);
 }
 
-void ConvertUInt64ToString(UInt64 value, wchar_t *s)
+void ConvertUInt64ToOct(UInt64 val, char *s)
 {
-  wchar_t temp[32];
-  int pos = 0;
+  UInt64 v = val;
+  unsigned i;
+  for (i = 1;; i++)
+  {
+    v >>= 3;
+    if (v == 0)
+      break;
+  }
+  s[i] = 0;
   do
   {
-    temp[pos++] = (wchar_t)(L'0' + (int)(value % 10));
-    value /= 10;
+    unsigned t = (unsigned)(val & 0x7);
+    val >>= 3;
+    s[--i] = (char)('0' + t);
   }
-  while (value != 0);
-  do
-    *s++ = temp[--pos];
-  while (pos > 0);
-  *s = L'\0';
+  while (i);
 }
 
-void ConvertUInt32ToString(UInt32 value, char *s) { ConvertUInt64ToString(value, s); }
-void ConvertUInt32ToString(UInt32 value, wchar_t *s) { ConvertUInt64ToString(value, s); }
-
-void ConvertInt64ToString(Int64 value, char *s)
+void ConvertUInt32ToHex(UInt32 val, char *s)
 {
-  if (value < 0)
+  UInt32 v = val;
+  unsigned i;
+  for (i = 1;; i++)
+  {
+    v >>= 4;
+    if (v == 0)
+      break;
+  }
+  s[i] = 0;
+  do
+  {
+    unsigned t = (unsigned)((val & 0xF));
+    val >>= 4;
+    s[--i] = (char)((t < 10) ? ('0' + t) : ('A' + (t - 10)));
+  }
+  while (i);
+}
+
+void ConvertUInt64ToHex(UInt64 val, char *s)
+{
+  UInt64 v = val;
+  unsigned i;
+  for (i = 1;; i++)
+  {
+    v >>= 4;
+    if (v == 0)
+      break;
+  }
+  s[i] = 0;
+  do
+  {
+    unsigned t = (unsigned)((val & 0xF));
+    val >>= 4;
+    s[--i] = (char)((t < 10) ? ('0' + t) : ('A' + (t - 10)));
+  }
+  while (i);
+}
+
+void ConvertUInt32ToHex8Digits(UInt32 val, char *s)
+{
+  s[8] = 0;
+  for (int i = 7; i >= 0; i--)
+  {
+    unsigned t = val & 0xF;
+    val >>= 4;
+    s[i] = (char)(((t < 10) ? ('0' + t) : ('A' + (t - 10))));
+  }
+}
+
+/*
+void ConvertUInt32ToHex8Digits(UInt32 val, wchar_t *s)
+{
+  s[8] = 0;
+  for (int i = 7; i >= 0; i--)
+  {
+    unsigned t = val & 0xF;
+    val >>= 4;
+    s[i] = (wchar_t)(((t < 10) ? ('0' + t) : ('A' + (t - 10))));
+  }
+}
+*/
+
+void ConvertUInt32ToString(UInt32 val, wchar_t *s)
+{
+  CONVERT_INT_TO_STR(wchar_t, 16);
+}
+
+void ConvertUInt64ToString(UInt64 val, wchar_t *s)
+{
+  if (val <= (UInt32)0xFFFFFFFF)
+  {
+    ConvertUInt32ToString((UInt32)val, s);
+    return;
+  }
+  CONVERT_INT_TO_STR(wchar_t, 24);
+}
+
+void ConvertInt64ToString(Int64 val, char *s)
+{
+  if (val < 0)
   {
     *s++ = '-';
-    value = -value;
+    val = -val;
   }
-  ConvertUInt64ToString(value, s);
+  ConvertUInt64ToString(val, s);
 }
 
-void ConvertInt64ToString(Int64 value, wchar_t *s)
+void ConvertInt64ToString(Int64 val, wchar_t *s)
 {
-  if (value < 0)
+  if (val < 0)
   {
     *s++ = L'-';
-    value = -value;
+    val = -val;
   }
-  ConvertUInt64ToString(value, s);
-}
-
-void ConvertUInt32ToHexWithZeros(UInt32 value, char *s)
-{
-  for (int i = 0; i < 8; i++)
-  {
-    int t = value & 0xF;
-    value >>= 4;
-    s[7 - i] = (char)((t < 10) ? ('0' + t) : ('A' + (t - 10)));
-  }
-  s[8] = '\0';
+  ConvertUInt64ToString(val, s);
 }