#ifndef _NTRTL_H
//
// Access masks
//
#ifndef PHNT_NO_INLINE_ACCESSES_GRANTED

/**
 * Checks if all desired accesses are granted.
 *
 * This function determines whether all the accesses specified in the DesiredAccess
 * mask are granted by the GrantedAccess mask.
 *
 * \param GrantedAccess The access mask that specifies the granted accesses.
 * \param DesiredAccess The access mask that specifies the desired accesses.
 * \return Returns TRUE if all desired accesses are granted, otherwise FALSE.
 */
FORCEINLINE
BOOLEAN
NTAPI_INLINE
RtlAreAllAccessesGranted(
    _In_ ACCESS_MASK GrantedAccess,
    _In_ ACCESS_MASK DesiredAccess
    )
{
    return (~GrantedAccess & DesiredAccess) == 0;
}

#endif
#endif
View code on GitHub

#ifndef _NTRTL_H
//
// Access masks
//
#ifndef PHNT_NO_INLINE_ACCESSES_GRANTED
// ...
#else

/**
 * Checks if all desired accesses are granted.
 *
 * This function determines whether all the accesses specified in the DesiredAccess
 * mask are granted by the GrantedAccess mask.
 *
 * \param GrantedAccess The access mask that specifies the granted accesses.
 * \param DesiredAccess The access mask that specifies the desired accesses.
 * \return Returns TRUE if all desired accesses are granted, otherwise FALSE.
 */
NTSYSAPI
BOOLEAN
NTAPI
RtlAreAllAccessesGranted(
    _In_ ACCESS_MASK GrantedAccess,
    _In_ ACCESS_MASK DesiredAccess
    );

#endif
#endif
View code on GitHub