C语言下的错误处理的问题

下面是三种C语言的错误处理，你喜欢哪一种？还是都不喜欢？

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/* 问题: 不充分，而且很容易出错，前面成功分配的资源，后面出错需要帮助释放 */ int foo(int bar) {         int return_value = 0;         int doing_okay = 1;         doing_okay = do_something( bar );         if (doing_okay)         {                 doing_okay = init_stuff();         }         if (doing_okay)         {                 doing_okay = prepare_stuff();         }         if (doing_okay)         {                 return_value = do_the_thing( bar );         }         return return_value; }

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/* 问题： 使用goto语句是很不好的 */ int foo(int bar) {         if (!do_something( bar )) {                 goto error;         }         if (!init_stuff( bar )) {                 goto error;         }         if (!prepare_stuff( bar )) {                 goto error;         }         return do_the_thing( bar ); error:         return 0; }

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/* 问题：太多的if嵌套了，无法阅读 */ int foo(int bar) {         int return_value = 0;         if (do_something( bar )) {                 if (init_stuff( bar )) {                         if (prepare_stuff( bar )) {                                 return_value = do_the_thing( bar );                          }                 }         }         return return_value; }

转载于:https://www.cnblogs.com/alantu2018/p/8503738.html