著者

小野寺 民也 上村 務

雑誌

全国大会講演論文集

巻号頁・発行日

vol.41, pp.52-53, 1990-09-04

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The popularity of C-based object-oriented programming(OOP) has grown in recent years. In particular, C++ is rapidly gaining acceptance by a large number of users.As these users accumulate experience, they have found certain common problems, which can be summarized as follows:・Iniracieble run-time errors. Major sources are type misinterpretation, illegal pointer dereferencing, and failure of storage management. The errors usually result in a segmentation fault, and disable even a debugger.・Long recompilalion time. More often, a slight mod ification to a source code causes a massive recompilation.・Limiled modularily and reusabilily.COB (C with OBjects) is a new object-oriented language, upward compatible with C, that is being devel oped at IBM's Tokyo Research Laboratory. The lan guage attempts to address the above problems by putting as much emphasis on facilitating programming activities as on the quality of the final object code. In particular,the following design goals have been set up.・Decreasing the number of error sources by providing safe language constructs and garbage collection.・Increasing the modularity of program components.・Maintaining compatibility with C.・Recovering good run-time performance by extesive optimizations in a completed program.