C Language
C is a general-purpose computer programming language used for operating systems, libraries, games and other high performance work. This tag should be used with general questions concerning the C language, as defined in the ISO 9899:2011 standard. If applicable, include a version-specific tag such as c99 or c90 for questions relating to older language standards. C is distinct from C++ and it should not be combined with the C++ tag absent a rational reason.
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What is ":-!!" in C code?
I bumped into this strange macro code in /usr/include/linux/kernel.h: /* Force a compilation error if conditi
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How are multi-dimensional arrays formatted in memory?
In C, I know I can dynamically allocate a two-dimensional array on the heap using the following code: int** s
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Function not working on c program selection sort
Why this function is not working here? It's not sorting on output. Suppose if I enter 1 4 2 the output is
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C Program can find (via fopen) in gdb but not release (a.out)
Here's a C simple program, that reads a user input for a file location and prints the first line if such
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How to contain escape sequences in macro definition #?
I am trying to use this macro definition in C: #define STR(x) #x Is it possible to contain some escape sequen
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When linked list element is created using calloc, how to delete element in the delete function without causing leaking issue?
My delete function can pass the test 1-5 shown in main() but can't pass test 6. The expected result is me
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fast multiplication of int8 arrays by constants
I wonder if there is a fast way of multiplying int8 arrays, i.e. for(i = 0; i < n; ++i) z[i] = x * y[i]
67
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Syntax error in printf command in c programming
Just for context, I am a complete beginner at programming and learning C is my first experience at coding. I d
56
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popen & poll for output
We are using popen and poll with timeout for reading output from a process. I have a case where we with popen
55
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Initializing the string in C; Is the following useful?
I know how to initialize strings in C in two different ways. char str[] = "abcd"; char str[] = {'a'
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How can I write accept function in my library in socket programming?
I am trying to write the code with my own library. I did this for the other functions such as 'bind'
57
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Using struct variables in functions - Conflicting types
i'm trying to pass struct variables to a function, but i receive: error: conflicting types for 'refe
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GCC: what's the default value when a symbol is defined on command line?
The following test code shows that a -DMY_FLAG on command line gives the symbol MY_FLAG a non-zero value, acco
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SCANF probably not reading the correct value
If you enter more than five characters in the "name" field the function giving wrong output,otherwise if the
