#include <stdio.h> int main() { int i; int j; int k; for(i = 1, j = 0, k = 3 ; i <= 5, j <= 6, k > 1 ;i++, j++, k–); { printf("%d%d%d", i, j, k); } } Why is this program printing 321 instead of 212? I get 321 when I execute… Read More Why is the output 321 instead of 212?

I am trying to dynamically allocate words straight out of a txt file for further use, but after entering the file name, the program crashes and returns a negative value (CodeBlocks). Here is the code: #include <stdio.h> #include <stdlib.h> #include <string.h> #define L 18 #define F 50 int main() { char **text = NULL; int… Read More Does anyone know why is my program crashing?

I’m learning C language, specifically pointers and I have this little question. How is it possible to save two data in the same memory location on C? Look my code: #include <stdio.h> int main() { const int y = 2; int *const ptr_y = &y; *ptr_y = 4; //Values printf("%d\n", y); printf("%d\n\n", *ptr_y); //Memory locations… Read More How is it possible to save two data in the same memory location on C?

I am learning about global variables in C using book C programming a modern approach. Below is given an example from the book why using same global variable for multiple functions is bad idea. I don’t understand why function print_all_rows executes function print_one_row only once. Let’s say I call first function print_one_row and then function… Read More External/global variable in C

I have a string that I want to execute in C file and I’d like to get the string from standard input. echo "Here is some random text.\n" | ./main.c >Solution : Read from stdin like any other FILE stream. #include<stdio.h> int main() { char line[BUFSIZ]; fgets(line, sizeof(line), stdin); printf("stdin: %s", line); }

Dependencies: GLFW 3.3.7 GLAD 4.0 core CGLM 0.8.5 stb_image 2.2.7 Compiler: GCC 11.2.0 (MinGW-W64) CMake 3.23.1 GNU Make 4.3 Problem The .obj file for main.c (and executable) is nearly 400MB in size Generated .obj files: https://i.stack.imgur.com/Dgn51.png There must something wrong with the main.c file and/or the way I include my dependency headers, but I can’t… Read More C language: main .obj file (and executable) is nearly 400MB in size

I create the malloc inside str function and i want to free this malloc variable #include <stdio.h> char *str(void) { // create the malloc char *string = malloc(2); // how to free it *(string + 0) = ‘J’; *(string + 1) = ‘O’; // return the malloc return string; } int main(void) { // print… Read More free of malloc inside the function, how to do that?

Considering the below struct, what would be the most efficient/correct way for declaring/using a dynamic array of it: typedef struct { int a; char b; } Test; Method a: Test* tst = malloc(2 * sizeof *tst); tst[0].a = 0; tst[0].b = 1; Method b: Test **tst = malloc(2 * sizeof(Test*)); tst[0] = malloc(sizeof(Test)); tst[0]->a =… Read More C Dynamic Array of Structs

I’m trying to understand the difference between pointers and arrays so I’ve created a simple program. All I’m doing is assigning a character to pointer pointing to a char. So as I know there is two methods for doing that. First one: by using the derefrence operator Second one: by using squares bracket For more… Read More Differences in using between *array2[0] and **arrays

The following is the code of pass one assembler in c. This code has a problem i want to get the address mentioned in "output.txt" in hex and not in decimal . How can i fix this ? #include<stdio.h> #include<string.h> #include <stdlib.h> void main(){ char opcode[10], operand[10], label[10], mnemonic[10], code[10]; int locctr, start, length; FILE… Read More Pass one of a two pass assembler