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Tag: gcc

How to link C language libraries?

I am interested in executing a function which is written in C language:- I want to call this fun() through assembly language which i have written:- (NASM 64bit) I have created object file by using these commands nasm -f elf64 MyAsm.asm and gcc -c CLang.c. When I merge these two file with gcc gcc MyASM.o CLang…

Why does running C code in Vim skip scanf()?

I’m using neovim in arch linux with the gcc C compiler, this is what I use in my .vimrc to compile and run map <F5> :w <CR> :!gcc % -o %< && ./%< <CR> The issue is that my code will run fine but any scanf() functions won’t prompt an input and will be ignored as the …

How to install gcc8 using devtoolset-8-gcc

I am using CentOS Linux release 7.3.1611 which has gcc 4.8.5 20150623 installed. I am looking for a way to install a newer version of gcc, specially 8.1. I found the following site on how to install gcc v7 link 1 which describes how to install gcc v7 (using devtoolset-7-gcc*). I did follow the guidelines and …

C realloc assertion

Not sure why I’m getting the following error when trying to use realloc: malloc.c:2401: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize – 1)…