Recent questions tagged c

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c - Two Dimensional Array Implementation Using Double Pointer

Please consider the following code: #include <stdio.h> #include <stdlib.h> #define NUM_ARRAYS 4 #define NUM_ELEMENTS ... to resolve this doubt. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - CMAKE - How to properly copy static library's header file into /usr/include?

I'm getting into CMAKE usage with C and actually I'm creating two very small static libraries. My goal ... -network DESTINATION "lib" ) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - how to debug application as root in eclipse in Ubuntu?

I'm programming application using libpcap. when I debug the application in normal mode, pcap cannot get the network ... do it. please help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - ld.exe: cannot open output file ... : Permission denied

I recently installed CodeBlocks with mingw32 on Windows 7 Ultimate 32bit in order to dust off my c skills, but this ... Any one have any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - What does EAGAIN mean?

As in the title what does EAGAIN mean? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How to get a FILE pointer from a file descriptor?

I'm playing around with mkstemp(), which provides a file descriptor, but I want to generate formatted output via ... for use with fprintf()? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - PTHREAD_MUTEX_INITIALIZER vs pthread_mutex_init ( &mutex, param)

Is there any difference between pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; Or pthread_mutex_t lock; pthread_mutex_init ... threads. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How do I gracefully exit an X11 event loop?

Almost every tutorial I find tells me to do this for my event loop: XEvent event; while (true) { XNextEvent( ... buried? What am I missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How to define relative paths in Visual Studio Project?

I have a library and a console application that uses a library. The library has a folder with source and ... in a parent/upper directory? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How to modify the TI SensorTag Firmware to advertise indefinitely?

When the side button of the TI SensorTag is pressed, pairing with a device is possible for approx. 2-3 ... so without using CC-debugger? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Why should you close a pipe in linux?

When using a pipe for process-process communication, what is the purpose of closing one end of the pipe? For ... . Why is this required? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - What does the %*s format specifier mean?

In some code that I have to maintain, I have seen a format specifier %*s . Can anybody tell me what this is and why ... , " %*s", indent, ""); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How to compile without warnings being treated as errors?

The problem is that the same code that compiles well on Windows, is unable to compile on Ubuntu. Every time I ... in spite of the warnings? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Faster way to zero memory than with memset?

I learned that memset(ptr, 0, nbytes) is really fast, but is there a faster way (at least on x86)? I assume ... . It will be hard to beat this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - char *array and char array[]

if I write this char *array = "One good thing about music"; I actually create an array? I mean it's the same ... "thing", "about", "music"}; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Most efficient way to copy a file in Linux

I am working at an OS independent file manager, and I am looking at the most efficient way to copy a file ... count for the file progress menu. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Class Scheduling to Boolean satisfiability [Polynomial-time reduction]

I have some theoretical/practical problem and I don't have clue for now on how to manage, Here it is: I ... [Polynomial-time reduction] part 2 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How to disable compiler optimizations in gcc?

I am trying to learn assembly language. I have searched and found how to disassemble a .c file but I think ... which corresponds to my C file. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How to sort a stack using only stack operations?

I found this question on the web. Given a stack S, write a C program to sort the stack (in the ascending ... What is optimal solution to this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Fast method to copy memory with translation - ARGB to BGR

Overview I have an image buffer that I need to convert to another format. The origin image buffer is four ... might not be immediately clear. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How to load multiple symbol files in gdb

How to load multiple symbol files in gdb. I have a executable foo.out and loading a module bar.so. I have ... all the files of directory in gdb See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Is it true that fork() calls clone() internally?

I read in the 3rd chapter of the "Linux Kernel Development, Second Edition" by Robert Love (ISBN:0-672- ... to some better links/resources. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Multi-Threading support in c11

The new C11 standard provides a support for Multi-Threading. My Questions are a bit diversified but definitely ... perhaps something like that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Transform hexadecimal information to binary using a Linux command

I have this binary file on my Linux system... udit@udit-Dabba ~ $ cat file.enc Salted__s?bO??<0?F???Jw ... , so contents should exactly match... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How does this piece of code determine array size without using sizeof( )?

Going through some C interview questions, I've found a question stating "How to find the size of an ... immense help and thorough explanation! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Accessing Keys from Linux Input Device

What I am trying to do So, I have been trying to access keyboard input in Linux. Specifically, I need to be ... same output as with the link. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - What's the difference between hard and soft floating point numbers?

When I compile C code with my cross toolchain, the linker prints pages of warnings saying that my executable uses ... . What's the difference? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How to read, understand, analyze, and debug a Linux kernel panic?

Consider the following Linux kernel dump stack trace, you can trigger a panic from the kernel source code by ... interpret the panic's content? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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