This file is indexed.

/usr/include/thunderbird/unicode/enumset.h is in thunderbird-dev 1:52.8.0-1~deb8u1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
// Copyright (C) 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
*
*   Copyright (C) 2012,2014 International Business Machines
*   Corporation and others.  All Rights Reserved.
*
******************************************************************************
*/

/**
 * \file
 * \brief C++: internal template EnumSet<>
 */

#ifndef ENUMSET_H
#define ENUMSET_H

#include "unicode/utypes.h"

#if U_SHOW_CPLUSPLUS_API

U_NAMESPACE_BEGIN

/* Can't use #ifndef U_HIDE_INTERNAL_API for the entire EnumSet class, needed in .h file declarations */
/**
 * enum bitset for boolean fields. Similar to Java EnumSet<>. 
 * Needs to range check. Used for private instance variables.
 * @internal
 */
template<typename T, uint32_t minValue, uint32_t limitValue>
class EnumSet {
public:
    inline EnumSet() : fBools(0) {}
    inline EnumSet(const EnumSet<T,minValue,limitValue>& other) : fBools(other.fBools) {}
    inline ~EnumSet() {}
#ifndef U_HIDE_INTERNAL_API
    inline void clear() { fBools=0; }
    inline void add(T toAdd) { set(toAdd, 1); }
    inline void remove(T toRemove) { set(toRemove, 0); }
    inline int32_t contains(T toCheck) const { return get(toCheck); }
    inline void set(T toSet, int32_t v) { fBools=(fBools&(~flag(toSet)))|(v?(flag(toSet)):0); }
    inline int32_t get(T toCheck) const { return (fBools & flag(toCheck))?1:0; }
    inline UBool isValidEnum(T toCheck) const {  return (toCheck>=minValue&&toCheck<limitValue); }
    inline UBool isValidValue(int32_t v) const { return (v==0||v==1); }
    inline const EnumSet<T,minValue,limitValue>& operator=(const EnumSet<T,minValue,limitValue>& other) {
        fBools = other.fBools;
        return *this;
    }
  
    inline uint32_t getAll() const {
        return fBools; 
    }
#endif /* U_HIDE_INTERNAL_API */

private:
    inline uint32_t flag(T toCheck) const { return (1<<(toCheck-minValue)); }
private:
    uint32_t fBools;
};

U_NAMESPACE_END

#endif /* U_SHOW_CPLUSPLUS_API */
#endif /* ENUMSET_H */