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What happens to a declared, uninitialized variable in C? Does it have a value?
... // also zero
}
Non-static variables (local variables) are indeterminate. Reading them prior to assigning a value results in undefined behavior.
void foo() {
int x;
printf("%d", x); // the compiler is free to crash here
}
In practice, they tend to just have some nonsensical value in there ...
Static variable inside of a function in C
... the static int x (scope) part of the statement actually applies where you read it, somewhere INSIDE the function and only from there onwards, not above it inside the function.
However the x = 5 (lifetime) part of the statement is initialization of the variable and happening OUTSIDE of the function...
Constructors vs Factory Methods [closed]
... This answer doesn't answer the question just relays information to read to understand/explain the concept... This is more of a comment.
– Crt
Mar 9 '18 at 15:44
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Unzip files programmatically in .net
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I tried this in my asp.net core web api, it read first entry fine, but on second entry it always give error A local file header is corrupt. Any though on this?
– SoftSan
May 25 '17 at 19:11
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Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
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I recently read a detailed article about React's diff algorithm here: http://calendar.perfplanet.com/2013/diff/. From what I understand, what makes React fast is:
Batched DOM read/write operations.
Efficient update of sub-tree only.
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Operator overloading in Java
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@tuğrulbüyükışık: There are already wrappers for all the existing primitive types - but if you wanted to create your own new wrapper type, you wouldn't be able to make it behave like the other ones, as they have specific support in the language.
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What is a MIME type?
I have been reading about how to build plug-ins and this "MIME type" keeps getting discussed in it. I have tried to look into it and know that it is Multipurpose Internet Mail Extensions (MIME) but no suitable explanation of how it relates to browser plug-ins, as in what I need to know about it for ...
How to avoid annoying error “declared and not used”
...and be sure to use everything you declare or import. It makes it easier to read code written by other people (you are always sure that all declared variables will be used), and avoid some possible dead code.
But, if you really want to skip this error, you can use the blank identifier (_) :
package...
Expert R users, what's in your .Rprofile? [closed]
...with factors. SAS's format system has many advantages over this, imo. When reading from text, stringsAsFactors is always set to false. However, for data transfer, I avoid reading from spreadsheet wherever possible.
– AdamO
Jul 6 '15 at 22:27
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Check if page gets reloaded or refreshed in JavaScript
...ormance.navigation.type == performance.navigation.TYPE_RELOAD is easier to read instead of == 1. Also, if you check performance.navigation you will find that there are 4 diffrent navigation types like TYPE_BACK_FORWARD,TYPE_NAVIGATE
– Vitalij Kornijenko
Feb 16 ...