please do the following. On terminal check the present directory by ‘pwd’ command and then check the directory in which your programme is there and see if they are same or not. And while writing gcc yourfile it’s case sensitive. Hope this helps 1 solved GCC compiler errors with “No such file or directory”
In the function argument: char arr[9][5] In the loop: for (i = 0; i<5; i++) { for (j = 0; j<9;j++) { if (arr[i][j] == 1) You flipped the position of i and j. i should go from 0 to 9, j from 0 to 5. 0 solved garbage value in C array
After giving it some extra thought, it is not as simple as it initially appeared. There is one thing that prevents it from working – the code of functions is not context aware – there is no way of knowing the frame it was invoked in, and that has two implications: 1 – modifying the … Read more
You didn’t copy the program correctly. This is the real program that reproduces the bug: #include <stdio.h> #define TRUE 1 #define FALSE 0 int function_returning_false() {return FALSE;} int main() { if (function_returning_false) { // note, no () printf(“function returned true\n”); } } So, it’s not calling the function – it is passing the function as … Read more
As mentioned by the commenters LDR r3,#0xaabbccdd is not a valid instruction. Immediates in ARM opcodes are on the form ZeroExtend(imm8) ROR (imm4*2), which would allow you to represent e.g. 0xaa000000, 0x00bb0000 and even 0xd000000d – but not e.g. 0xaabb0000 or 0xaabbccdd. Assemblers typically provide a pseudo-instruction for loading 32-bit immediates, e.g. in GAS you … Read more
The result in this situation is based on whats on top of the stack when test() is returned. The behaviour is undefined. You should compile your code with warnings enabled: gcc main.c -Wall Also, altering your argv pointer is a bit dirty. De-referencing argv directly communicates your intentions in a clear way: printf(“\n%d\n”, test(atoi(*++argv), 2)); … Read more
You probably want lambda or std::function, or std::bind auto l_add_100 = [](double x) { return add_two_numbers(x, 100); }; std::function<double(double)> f_add_100 = [](double x) { return add_two_numbers(x, 100); } auto b_add_100 = std::bind(add_two_numbers, std::place_holder::_1, 100); or with non hard coded number double y = //… auto l_add_y = [y](double x) { return add_two_numbers(x, y); } std::function<double(double)> … Read more
For the purpose of in-memory data representation, a C++ class can have either plain or static member functions, or virtual member functions (including some virtualdestructor, if any). Plain or static member functions do not take any space in data memory, but of course their compiled code take some resource, e.g. as binary code in the … Read more
A number of things are jumping out at me about your code. You are allocating memory for num integers, when num is uninitialized. It is given an undefined trash value. See undefined behavior. You must put your scanf statement before your malloc, because as it stands right now your code does not make sense. for … Read more
Linux uses a “guard area”. It puts one or more access-protect pages at the end of the stack for each thread. If the program accesses the guard area, the OS handles the fault. If the thread is already using its max permitted stack then it terminates something (the thread or the whole process, I don’t … Read more
When reading from standard input, do not mix C library functions, such as fgets(), and C++ std::cin operators. The C library knows nothing about what the C++ library is doing. Change your code to use only stdin, or only std::cin, to read standard input. solved Why is this code not taking input for “Designation”?
Here’s a laundry list of complaints I have about this code: You delete buf twice. This is really the only item I can see that needs actual debugging. The fact that the name of the exercise is double_free is a dead giveaway to experienced coders that this is the issue. On top of that: You … Read more
Is there a simpler approach to reuse code in C++ as we do with packages in java? Making a header file is comparatively complicated? solved Is there a simpler approach to reuse code in C++ as we do with packages in java? Making a header file is comparatively complicated?
use “objdump -D lib_file” the left column will be the ‘binary object code’ and right column – disassembled one. solved How to find object code of c++ file
It would be more readable if you kept the code formatting for the whole code, not just its part. But when I tried to find a main function, I didn’t find any. Therefore there is no reference to main because you haven’t implemented one, at least not in the code you posted here. solved Error … Read more