How many ways are there to initialize variables? Don't forget to watch out for bugs that look like variable initialization, but aren't.
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Problem
What is the difference, if any, between the following?
SomeType t = u;
SomeType t(u);
SomeType t();
SomeType t;
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Solution
Taking them in reverse order:
SomeType t;
The variable t is initialised using the default c

本文探讨了变量初始化的各种方式,并警告读者注意看似初始化但实际上可能导致bug的行为。内容包括不同初始化形式之间的差异分析。
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