|
These are the real relational operator contants to use.
Don't mind that it's not an enum. See also: zypp::Rel::inSwitch
|
| enum | for_use_in_switch {
NONE_e = 0U
, GT_e = 1U
, EQ_e = 2U
, LT_e = 4U
,
GE_e = GT_e|EQ_e
, LE_e = LT_e|EQ_e
, NE_e = GT_e|LT_e
, ANY_e = GT_e|EQ_e|LT_e
} |
| | Enumarators provided only for use inSwitch statement. More...
|
| |
| static const Rel | EQ |
| |
| static const Rel | NE |
| |
| static const Rel | LT |
| |
| static const Rel | LE |
| |
| static const Rel | GT |
| |
| static const Rel | GE |
| |
| static const Rel | ANY |
| |
| static const Rel | NONE |
| |
| for_use_in_switch | _op |
| | The operator.
|
| |
| | Rel () |
| | DefaultCtor ANY.
|
| |
| | Rel (const std::string &strval_r) |
| | Ctor from string.
|
| |
| | Rel (const std::string &strval_r, const Rel &default_r) |
| | Ctor from string (non-throwing).
|
| |
| bool | parseFrom (const std::string &strval_r) |
| | Assign from string IFF it contains a legal value.
|
| |
| | Rel (unsigned bits_r) |
| | Ctor from bits.
|
| |
| const std::string & | asString () const |
| | String representation of relational operator.
|
| |
| const char * | c_str () const |
| | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
| |
| for_use_in_switch | inSwitch () const |
| | Enumarator provided for use in switch statement.
|
| |
| unsigned | bits () const |
| | Enumarator values suitable for libsolv.
|
| |
| static bool | isRel (unsigned bits_r) |
| | Test whether bits_r is a valid Rel (no extra bits set).
|
| |
| | Rel (for_use_in_switch op_r) |
| | Ctor to initialize the relational operator contants.
|
| |
Relational operators.
Yes, it could as well be simply an enum.
Yes, you can use the relational operators as if it was an enum.
Except for use in a switch statement; see inSwitch for this.
But we want to construct them from a string representation, as well as providing one. And this way they are wrapped into a namespace, which is a good idea anyway.
ANY and NONE are somewhat special. ANY is the operator created by the default ctor, and it should always resolve to true. This may be handy in queries when you're looking for a Resolvable in ANY Edition if no operator was specified. While NONE should always resolve to false.
Definition at line 43 of file Rel.h.
| zypp::Rel::Rel |
( |
const std::string & |
strval_r | ) |
|
|
explicit |
Ctor from string.
Legal values for strval_r are: "="/"==", "!=", "<", "<=", ">", ">=",
as well as "EQ", "NE", "LT", "LE", "GT", "GE", "ANY", "NONE"
and "" (empty string resolves to ANY).
Lower case names are accepted as well.
- Exceptions
-
| PARSE | if strval_r is not legal. |
- Todo:
- refine exceptions and check throw.
Definition at line 81 of file Rel.cc.
1.9.6