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Use grep to report back only line numbers
... line numbers where this occurs (as in, the match was here, go to line # x and fix it).
8 Answers
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Why main does not return 0 here?
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That rule was added in the 1999 version of the C standard. In C90, the status returned is undefined.
You can enable it by passing -std=c99 to gcc.
As a side note, interestingly 9 is returned because it's the return of printf which just wrote 9 characters.
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How do I convert a double into a string in C++?
...y:
std::string str = boost::lexical_cast<std::string>(dbl);
The Standard C++ way:
std::ostringstream strs;
strs << dbl;
std::string str = strs.str();
Note: Don't forget #include <sstream>
share
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Pretty printing JSON from Jackson 2.2's ObjectMapper
...ht now I have an instance of org.fasterxml.jackson.databind.ObjectMapper and would like to get a String with pretty JSON. All of the results of my Google searches have come up with Jackson 1.x ways of doing this and I can't seem to find the proper, non-deprecated way of doing this with 2.2. Even...
Sending data back to the Main Activity in Android
I have two activities: main activity and child activity.
When I press a button in the main activity, the child activity is launched.
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Git merge two local branches
I have branch Master , branchA and branchB .
Now I'm working in the branchA and I need to merge branchA with branchB and proceed my work in the branchA . All files are comitted in the branchA and branchB .
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How can I make Vim's `J` and `gq` commands use one space after a period?
When I use Vim's J command, most lines are joined with a single space for padding. But after a period Vim always uses two spaces. Take the following example:
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Can I find out the return value before returning while debugging in Eclipse?
...t possible to see the return value of a method after the line has been run and before the instruction pointer returns to the calling function?
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How to get the last N records in mongodb?
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If I understand your question, you need to sort in ascending order.
Assuming you have some id or date field called "x" you would do ...
.sort()
db.foo.find().sort({x:1});
The 1 will sort ascending (oldest to newest) and -1 will so...
Base 64 encode and decode example code
Does anyone know how to decode and encode a string in Base64 using the Base64. I am using the following code, but it's not working.
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