Error compile Android NDK  error: 'strtof' is not a member of 'std'

hi, can you help me, this error occurs when it compile with Android NDK

```
          error: 'strtof' is not a member of 'std'
         return std::strtof(reinterpret_cast<typename string_t::const_pointer>(m_start), endptr);

         error: 'ERANGE' was not declared in this scope
         if (reinterpret_cast<lexer_char_t*>(endptr) != m_cursor || errno == ERANGE)
```
