string_access.hpp

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inline as_bool_t operator !=(LPCTSTR lhs, c_str_ptr_null_CWindow_proxy const &rhs)
{
    return lhs != static_cast<LPCTSTR>(rhs);
}

inline as_bool_t operator !=(c_str_ptr_null_CWindow_proxy const &lhs, LPCTSTR rhs)
{
    return static_cast<LPCTSTR>(lhs) != rhs;
}
#endif /* __ATLWIN_H__ */

/* /////////////////////////////////////////////////////////////////////////
 * IOStream compatibility
 */

#ifdef __ATLWIN_H__
template<ss_typename_param_k S>
inline S &operator <<(S & s, c_str_ptr_null_CWindow_proxy const &shim)
{
    s << static_cast<LPCTSTR>(shim);

    return s;
}

template <ss_typename_param_k S>
inline S &operator <<(S & s, c_str_ptr_CWindow_proxy const &shim)
{
    s << static_cast<LPCTSTR>(shim);

    return s;
}
#endif /* __ATLWIN_H__ */

/* /////////////////////////////////////////////////////////////////////////
 * c_str_ptr_null
 *
 * This can be applied to an expression, and the return value is either a
 * pointer to the character string or NULL.
 */

/* CWindow */
#ifdef __ATLWIN_H__
/// \brief Returns the corresponding C-string pointer of the CWindow \c w, or a null pointer
inline c_str_ptr_null_CWindow_proxy c_str_ptr_null(atlstl_ns_qual_atl(CWindow) const &w)
{
    return c_str_ptr_null_CWindow_proxy(w);
}
/// \brief Returns the corresponding C-string pointer of the CWindow \c w, or a null pointer
# ifdef UNICODE
inline c_str_ptr_null_CWindow_proxy c_str_ptr_null_w(atlstl_ns_qual_atl(CWindow) const &w)
# else /* ? UNICODE */
inline c_str_ptr_null_CWindow_proxy c_str_ptr_null_a(atlstl_ns_qual_atl(CWindow) const &w)
# endif /* UNICODE */
{
    return c_str_ptr_null(w);
}
#endif /* __ATLWIN_H__ */

/* CComBSTR */
/// \brief Returns the corresponding C-string pointer of the CComBSTR \c s, or a null pointer
inline LPCOLESTR c_str_ptr_null(atlstl_ns_qual_atl(CComBSTR) const &s)
{
    /* NULL is a valid BSTR value, so may return that */
    return s.m_str;
}
inline LPCOLESTR c_str_ptr_null_w(atlstl_ns_qual_atl(CComBSTR) const &s)
{
    return c_str_ptr_null(s);
}

/* /////////////////////////////////////////////////////////////////////////
 * c_str_ptr
 *
 * This can be applied to an expression, and the return value is either a
 * pointer to the character string or to an empty string.
 */

/* CWindow */
#ifdef __ATLWIN_H__
/// \brief Returns the corresponding C-string pointer of the text of the CWindow \c w
inline c_str_ptr_CWindow_proxy c_str_ptr(atlstl_ns_qual_atl(CWindow) const &w)
{
    return c_str_ptr_CWindow_proxy(w);
}
/// \brief Returns the corresponding C-string pointer of the CWindow \c w, or a null pointer
# ifdef UNICODE
inline c_str_ptr_CWindow_proxy c_str_ptr_w(atlstl_ns_qual_atl(CWindow) const &w)
# else /* ? UNICODE */
inline c_str_ptr_CWindow_proxy c_str_ptr_a(atlstl_ns_qual_atl(CWindow) const &w)
# endif /* UNICODE */
{
    return c_str_ptr(w);
}
#endif /* __ATLWIN_H__ */

/* CComBSTR */
/// \brief Returns the corresponding C-string pointer of the CComBSTR \c s
inline LPCOLESTR c_str_ptr(atlstl_ns_qual_atl(CComBSTR) const &s)
{
    /* NULL is a valid BSTR value, so check for that */
    return (s.m_str != 0) ? s.m_str : L"";
}
inline LPCOLESTR c_str_ptr_w(atlstl_ns_qual_atl(CComBSTR) const &s)
{
    return c_str_ptr(s);
}

/* /////////////////////////////////////////////////////////////////////////
 * c_str_data
 *
 * This can be applied to an expression, and the return value is either a
 * pointer to the character string or to an empty string.
 */

/* CWindow */
#ifdef __ATLWIN_H__
/// \brief Returns the corresponding possibly un-terminated C-string pointer of the text of the CWindow \c w
inline c_str_ptr_CWindow_proxy c_str_data(atlstl_ns_qual_atl(CWindow) const &w)
{
    return c_str_ptr(w);
}
/// \brief Returns the corresponding C-string pointer of the CWindow \c w, or a null pointer
# ifdef UNICODE
inline c_str_ptr_CWindow_proxy c_str_data_w(atlstl_ns_qual_atl(CWindow) const &w)
# else /* ? UNICODE */
inline c_str_ptr_CWindow_proxy c_str_data_a(atlstl_ns_qual_atl(CWindow) const &w)
# endif /* UNICODE */
{
    return c_str_data(w);
}
#endif /* __ATLWIN_H__ */

/// \brief Returns the corresponding possibly un-terminated C-string pointer of the CComBSTR \c s
inline LPCOLESTR c_str_data(atlstl_ns_qual_atl(CComBSTR) const &s)
{
    return c_str_ptr(s);
}
inline LPCOLESTR c_str_data_w(atlstl_ns_qual_atl(CComBSTR) const &s)
{
    return c_str_data(s);
}

/* /////////////////////////////////////////////////////////////////////////
 * c_str_len
 *
 * This can be applied to an expression, and the return value is the number of
 * characters in the character string in the expression.
 */

/* CWindow */
#ifdef __ATLWIN_H__
/// \brief Returns the length (in characters) of the contents of the window \c w, <b><i>not</i></b> including the null-terminating character
inline as_size_t c_str_len(atlstl_ns_qual_atl(CWindow) const &w)
{
    return static_cast<as_size_t>(w.GetWindowTextLength());
}
#endif /* __ATLWIN_H__ */

/* CComBSTR */
/// \brief Returns the length (in characters) of the CComBSTR \c s, <b><i>not</i></b> including the null-terminating character
inline as_size_t c_str_len(atlstl_ns_qual_atl(CComBSTR) const &s)
{
    return s.Length();
}

/* /////////////////////////////////////////////////////////////////////////
 * c_str_size
 *
 * This can be applied to an expression, and the return value is the number of
 * bytes required to store the character string in the expression, NOT including
 * the null-terminating character.
 */

/* CWindow */
#ifdef __ATLWIN_H__
#if 0
/// \brief Returns the size (in bytes) of the contents of the window \c w, <b><i>not</i></b> including the null-terminating character
inline as_size_t c_str_size(atlstl_ns_qual_atl(CWindow) const &w)
{
    return c_str_len(w) * sizeof(TCHAR);
}
#endif /* 0 */
#endif /* __ATLWIN_H__ */

/* CComBSTR */
#if 0
/// \brief Returns the size (in bytes) of the CComBSTR \c s, <b><i>not</i></b> including the null-terminating character
inline as_size_t c_str_size(atlstl_ns_qual_atl(CComBSTR) const &s)
{
    return c_str_len(s) * sizeof(OLECHAR);
}
#endif /* 0 */

////////////////////////////////////////////////////////////////////////////
// Unit-testing

#ifdef STLSOFT_UNITTEST
# include "./unittest/string_access_unittest_.h"
#endif /* STLSOFT_UNITTEST */

/* ////////////////////////////////////////////////////////////////////// */

#ifndef _ATLSTL_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
     defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
} // namespace atlstl
# else
} // namespace stlsoft::atlstl_project
} // namespace stlsoft
# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !_ATLSTL_NO_NAMESPACE */

/* /////////////////////////////////////////////////////////////////////////
 * Namespace
 *
 * The string access shims exist either in the stlsoft namespace, or in the
 * global namespace. This is required by the lookup rules.
 *
 */

#ifndef _ATLSTL_NO_NAMESPACE
# if !defined(_STLSOFT_NO_NAMESPACE) && \
     !defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
namespace stlsoft
{
# else /* ? _STLSOFT_NO_NAMESPACE */
/* There is no stlsoft namespace, so must define in the global namespace */
# endif /* !_STLSOFT_NO_NAMESPACE */

using ::atlstl::c_str_ptr_null;
#if defined(__ATLWIN_H__) && \
    !defined(UNICODE)
using ::atlstl::c_str_ptr_null_a;
#endif /* __ATLWIN_H__ && !UNICODE*/
using ::atlstl::c_str_ptr_null_w;

using ::atlstl::c_str_ptr;
#if defined(__ATLWIN_H__) && \
    !defined(UNICODE)
using ::atlstl::c_str_ptr_a;
#endif /* __ATLWIN_H__ && !UNICODE*/
using ::atlstl::c_str_ptr_w;

using ::atlstl::c_str_data;
#if defined(__ATLWIN_H__) && \
    !defined(UNICODE)
using ::atlstl::c_str_data_a;
#endif /* __ATLWIN_H__ && !UNICODE*/
using ::atlstl::c_str_data_w;

using ::atlstl::c_str_len;

#if 0
using ::atlstl::c_str_size;
#endif /* 0 */

# if !defined(_STLSOFT_NO_NAMESPACE) && \
     !defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
} // namespace stlsoft
# else /* ? _STLSOFT_NO_NAMESPACE */
/* There is no stlsoft namespace, so must define in the global namespace */
# endif /* !_STLSOFT_NO_NAMESPACE */
#endif /* !_ATLSTL_NO_NAMESPACE */

/* ////////////////////////////////////////////////////////////////////// */

#endif /* !ATLSTL_INCL_ATLSTL_HPP_STRING_ACCESS */

/* ////////////////////////////////////////////////////////////////////// */