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How to replace a whole line with sed?
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Try this:
sed "s/aaa=.*/aaa=xxx/g"
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How to shuffle a std::vector?
...n intermediate array and it needs to know the item type (DeckCard in this example):
6 Answers
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Is it possible to declare two variables of different types in a for loop?
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C++17: Yes! You should use a structured binding declaration. The syntax has been supported in gcc and clang for years (since gcc-7 and clang-4.0) (clang live example). This allows us to unpack a tuple like so:
for (auto [i, f, s] = std::tuple{1, 1.0, std::string{"ab"}}; i < N; ++i, f += 1.5...
Determine if the device is a smartphone or tablet? [duplicate]
...ng:
Use the Smallest-width Qualifier
If you read the entire topic, they explain how to set a boolean value in a specific value file (as res/values-sw600dp/attrs.xml):
<resources>
<bool name="isTablet">true</bool>
</resources>
Because the sw600dp qualifier is only val...
How to construct a relative path in Java from two absolute paths (or URLs)?
...ich does all the necessary checks for you.
String path = "/var/data/stuff/xyz.dat";
String base = "/var/data";
String relative = new File(base).toURI().relativize(new File(path).toURI()).getPath();
// relative == "stuff/xyz.dat"
Please note that for file path there's java.nio.file.Path#relativize...
Variable declaration placement in C
...It compiles successfully because GCC allows the declaration of s as a GNU extension, even though it's not part of the C89 or ANSI standard. If you want to adhere strictly to those standards, you must pass the -pedantic flag.
The declaration of c at the start of a { } block is part of the C89 standa...
How to name variables on the fly?
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The answer is almost always "no" except when it isn't.
– Shane
Aug 2 '12 at 12:33
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Key hash for Android-Facebook app
...feature. I downloaded the Facebook-Android SDK, and I got
the readme.md (text file) in there, in which it is mentioned to generate
the key hash for Android. How do I generate it?
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Struggling trying to get cookie out of response with HttpClient in .net 4.5
... You must add "using System.linq;"
– Cabuxa.Mapache
May 7 '18 at 6:24
^^ System.Linq is only required if y...
Convert array of integers to comma-separated string
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You do not need to pass the explicit generic argument in this case. It will be inferred.
– leppie
Jan 21 '11 at 7:59
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