boost::lexical_cast 从字符串到字符异常
我对使用 boost::lexical_cast 很陌生，对其内部结构了解甚少。我正在尝试执行以下转换：
string someString = boost::lexical_cast<char>(sourceString);
但是，boost 抱怨上面的代码是：
[Exception]: bad lexicalcast: source type value Could not beterpreted as target
The source 是一个字符串，但它始终只是 1字符长。
有人可以解释一下吗？
谢谢。
I am new to using boost::lexical_cast and have minimal understanding of its internals. I am trying to do the following cast:
string someString = boost::lexical_cast<char>(sourceString);
However, boost is complaining that the above code is:
[Exception]: bad lexical cast: source type value could not be interpreted as target
The source is a string, however it will always only be 1 character long.
Could someone please explain?
Thanks.
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当我测试它时（修复从
char到string的无效转换后），只要sourceString包含单个字符，词法转换就会成功。 这里是测试结果。如果您的真实代码不起作用，请发布更多代码；最好是一个可运行的程序来演示错误。
When I test it (after fixing the invalid conversion from
chartostring), the lexical cast succeeds as long assourceStringcontains a single character. Here are the test results.If your real code doesn't work, then please post more of it; preferably a runnable program that demonstrates the error.