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73 lines
2.2 KiB
Plaintext
73 lines
2.2 KiB
Plaintext
These are some rules for effective C++ programming. These are taken from
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Scott Meyers, and are presented in their short form. These are not all the
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rules Meyers presents, only the most important of them. LyX does not yet
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follow these rules, but they should be the goal.
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- use const and inline instead of #define
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- use the same form in corresponding calls to new and delete,
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i.e. write delete[] obj; if new obj[n]; was used to create
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the object and write delete obj; if you wrote new obj;
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Notice strings should be std::string's instead of char *'s.
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- define a default constructor, copy constructor and an assignment
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operator for all classes with dynamically allocated memory that
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are not made noncopyable
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- do not define default constructor, copy constructor and an assignment
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operator if the compiler generated one would do the same
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- make destructors virtual in base classes and only there
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- assign to all data members in operator=()
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- strive for class interfaces that are complete and minimal
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- differentiate among member functions, global functions and friend
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functions
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- avoid data members in the public interface
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- use const whenever possible
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- pass and return objects by reference instead of by value
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- choose carefully between function overloading and
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parameter defaulting
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- never return a reference to a local object or a dereferenced
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pointer initialized by new within the function
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- use enums for integral constants
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- minimize compilation dependencies between files
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- pay attention to compiler warnings
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- differentiate between inheritance of interface and
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inheritance of implementation
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- differentiate between inheritance and templates
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- ensure that global objects are initialized before they are used
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- avoid conditions to 'if' and 'while' that span more than a line
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--------
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S. Meyers. Effective C++, 50 Specific Ways to Improve Your Programs and
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Design. Addison-Wesley, 1992
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==================================
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And one of mine: (Lgb)
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- when swiching on enums, refrain from using "default:" if possible
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And one of mine: (Andre')
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- try to implement your class in a way that the automatically generated
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copy constructor and copy assignment work out-of-the box
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