3.13

Common/StringToInt.cpp

@@ -0,0 +1,50 @@
+// Common/StringToInt.cpp
+
+#include "StdAfx.h"
+
+#include "StringToInt.h"
+
+UINT64 ConvertStringToUINT64(const char *s, const char **end)
+{
+  UINT64 result = 0;
+  while(true)
+  {
+    char c = *s;
+    if (c < '0' || c > '9')
+    {
+      if (end != NULL)
+        *end = s;
+      return result;
+    }
+    result *= 10;
+    result += (c - '0');
+    s++;
+  }
+}
+
+UINT64 ConvertStringToUINT64(const wchar_t *s, const wchar_t **end)
+{
+  UINT64 result = 0;
+  while(true)
+  {
+    wchar_t c = *s;
+    if (c < '0' || c > '9')
+    {
+      if (end != NULL)
+        *end = s;
+      return result;
+    }
+    result *= 10;
+    result += (c - '0');
+    s++;
+  }
+}
+
+
+INT64 ConvertStringToINT64(const char *s, const char **end)
+{
+  INT64 result = 0;
+  if (*s == '-')
+    return -(INT64)ConvertStringToUINT64(s + 1, end);
+  return ConvertStringToUINT64(s, end);
+}