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C++ : why bool is 8 bits long?
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Yes, it's a hardware choice, and if the hardware allows for it, the size of a bool could change. But the OP asked why a bool is 8 bits wide, and on systems where that is the case, it is generally because the CPU is only able to address 8-bit bytes.
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How can I trim leading and trailing white space?
I am having some troubles with leading and trailing white space in a data.frame.
13 Answers
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Java String - See if a string contains only numbers and not letters
I have a string that I load throughout my application, and it changes from numbers to letters and such. I have a simple if statement to see if it contains letters or numbers but, something isn't quite working correctly. Here is a snippet.
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When do we need to set ProcessStartInfo.UseShellExecute to True?
...en a specified program or file - it is roughly equivalnt to typing the command to be executed into the run dialog and clicking OK, which means that it can be used to (for example):
Open .html files or web using the default browser without needing to know what that browser is,
Open a word document w...
How to access cookies in AngularJS?
...e AngularJS way to access cookies? I've seen references to both a service and a module for cookies, but no examples.
9 A...
Legality of COW std::string implementation in C++11
It had been my understanding that copy-on-write is not a viable way to implement a conforming std::string in C++11, but when it came up in discussion recently I found myself unable to directly support that statement.
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Set line spacing
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Try the line-height property.
For example, 12px font-size and 4px distant from the bottom and upper lines:
line-height: 20px; /* 4px +12px + 4px */
Or with em units
line-height: 1.7em; /* 1em = 12px in this case. 20/12 == 1.666666 */
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What actually causes a Stack Overflow error? [duplicate]
I've looked everywhere and can't find a solid answer. According to the documentation, Java throws a java.lang.StackOverflowError error under the following circumstance:
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.bashrc/.profile is not loaded on new tmux session (or window) — why?
...he profile.
The rules as to when bash runs certain files are complicated, and depend on the type of shell being started (login/non-login, interactive or not, and so forth), along with command line arguments and environment variables.
You can see them in the man bash output, just look for INVOCATIO...
Best practices for API versioning? [closed]
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This is a good and a tricky question. The topic of URI design is at the same time the most prominent part of a REST API and, therefore, a potentially long-term commitment towards the users of that API.
Since evolution of an application and...