C Archives - Page 4 of 22

C, Programming

IT Nursery

Effects of the extern keyword on C functions

In C, I did not notice any effect of the extern keyword used before function declaration. At first, I thought that when defining ...

May 30, 2022
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C, Programming

IT Nursery

Is there a good Valgrind substitute for Windows?

Locked. This question and its answers are locked because the question is off-topic but has historical significance. It is not currently accepting new ...

May 29, 2022
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C, Programming

IT Nursery

C multi-line macro: do/while(0) vs scope block [duplicate]

This question already has answers here: Closed 12 years ago. Possible Duplicates: What’s the use of do while(0) when we define a macro? ...

May 29, 2022
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C, Programming

IT Nursery

Creating your own header file in C

Can anyone explain how to create a header file in C with a simple example from beginning to end. 4 Answers 4

May 29, 2022
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C, Programming

IT Nursery

Valid, but worthless syntax in switch-case?

Through a little typo, I accidentally found this construct: int main(void) { char foo = 'c'; switch(foo) { printf("Cant Touch This\n"); // This ...

May 29, 2022
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C, Programming

IT Nursery

Return a `struct` from a function in C

Today I was teaching a couple of friends how to use C structs. One of them asked if you could return a struct ...

May 29, 2022
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C, Programming

IT Nursery

Realistic usage of the C99 ‘restrict’ keyword?

I was browsing through some documentation and questions/answers and saw it mentioned. I read a brief description, stating that it would be basically ...

May 29, 2022
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C, Programming

IT Nursery

Check substring exists in a string in C

I’m trying to check whether a string contains a substring in C like: char *sent = "this is my sample example"; char *word ...

May 28, 2022
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C, Programming

IT Nursery

Pointer arithmetic for void pointer in C

When a pointer to a particular type (say int, char, float, ..) is incremented, its value is increased by the size of that ...

May 28, 2022
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C, Programming

IT Nursery

Why aren’t programs written in Assembly more often? [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, ...

May 28, 2022
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