ignore | 易学教程

When and why do I need to use cin.ignore() in C++?

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问题 I wrote a very basic program in C++ which asked the user to input a number and then a string. To my surprise, when running the program it never stopped to ask for the string. It just skipped over it. After doing some reading on StackOverflow, I found out that I needed to add a line that said: cin.ignore(256, \'\\n\'); before the line that gets the string input. Adding that fixed the problem and made the program work. My question is why does C++ need this cin.ignore() line and how can I

Conditionally ignoring tests in JUnit 4

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问题 OK, so the @Ignore annotation is good for marking that a test case shouldn\'t be run. However, sometimes I want to ignore a test based on runtime information. An example might be if I have a concurrency test that needs to be run on a machine with a certain number of cores. If this test were run on a uniprocessor machine, I don\'t think it would be correct to just pass the test (since it hasn\'t been run), and it certainly wouldn\'t be right to fail the test and break the build. So I want to

Git command to show which specific files are ignored by .gitignore

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问题 I am getting my feet wet on git and have the following issue: My project source tree: / | +--src/ +----refs/ +----... | +--vendor/ +----... I have code (currently MEF) in my vendor branch that I will compile there and then move the references into /src/refs which is where the project picks them up from. My issue is that I have my .gitignore set to ignore *.dll and *.pdb . I can do a git add -f bar.dll to force the addition of the ignored file which is ok, the problem is I can not figure out

Python UnicodeDecodeError - Am I misunderstanding encode?

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Any thoughts on why this isn't working? I really thought 'ignore' would do the right thing. >>> 'add \x93Monitoring\x93 to list '.encode('latin-1','ignore') Traceback (most recent call last): File "<interactive input>", line 1, in ? UnicodeDecodeError: 'ascii' codec can't decode byte 0x93 in position 4: ordinal not in range(128) tzot …there's a reason they're called "encodings"… A little preamble: think of unicode as the norm, or the ideal state. Unicode is just a table of characters. №65 is latin capital A. №937 is greek capital omega. Just that. In order for a computer to store and-or