You will need to include file1.h and file2.h in file3.h instead of file3.c. As func3 uses struct1 and struct2, you can’t declare it without having the declarations of the structs on hand. Don’t be tempted to redeclare the structs in file3.h. solved Declaring a function in a header file which references structs defined in different … Read more
1. while ((buffer[i++] = getchar()) != ‘\n’) You have to be sure that the number of characters being entered is less than 4096. Else you have a buffer overflow. While reading until the end of the line it would be better to use fgets() which is much safer. 2. strcpy(newbuffer,buffer); What if your array buffer … Read more
The code is probably intended to create an identity matrix with 1’s on the leading diagonal and 0’s elsewhere. The Fortran equivalent of that code is used as the first example of bad code in the classic Elements of Programming Style by Kernighan and Plauger. Working from memory, the Fortran code was roughly: DO 10 … Read more
The code int x = (2, 6, 8); uses the (very uncommon) comma operator. In C, an expression of the form expr1, expr2, expr3, …, exprN is interpreted to mean “evaluate expr1 and discard its value, then evaluate expr2 and discard its value, …, and finally evaluate exprN and use the value it evaluates to.” … Read more
You have infinite loops in all functions. If you enter one function you never return. Consider putting this while in main function. #include <stdio.h> #include <time.h> … int main(){ srand( time(0) ); fnSlotMachine(); while(1) { fnSlot1(); fnSlot2(); fnSlot3(); } } … void fnSlot1(){ Sleep(50); fnGotoXY(5, 9); intSlot1 = rand() % 9; printf(” | %i %i … Read more
why not the program crash, or print some random garbage? The program will not crash as you are not accessing any illegal memory. The stack memory is a part of your program and as long as you are accessing the memory in a valid range the program will not crash. Yes, you can modify the … Read more
If i is the index you want to have, check the Count: if (i >= 0 && (list.Count – 1) >= i) { // okay, the item is there } If talking about nullable types, you could also check if the item on that index isn’t null: if (i >= 0 && (list.Count – 1) … Read more
Try this code #include <stdio.h> #include <windows.h> #include <math.h> #define PI 3.141597 #define WAVELENGTH 70 #define PERIOD .1 int main() { float i,s,x; i = 0; for (i=0;i<=PI;i+=PERIOD) { s = sin(i); for (x=0;x<s*WAVELENGTH;x++) { putchar(‘*’); } putchar(‘\n’); } return 0; } 1 solved This C program wont compile/run? [closed]
Variable c will always contain just 1 character, which is int. You are overwriting previous value with return value of a function getchar in each iteration of a loop. Also try to avoid duplicate code by rewriting the while loop. You can call function getchar and assign value to variable c inside the while condition: … Read more
Per the online C2011 standard, it is not valid; you may not have an empty initializer list (see 6.7.9, Syntax). That doesn’t mean a specific implementation can’t offer an empty initializer list as an extension, but the utility would be unclear. Beyond that, the compiler has no way of knowing how much storage to set … Read more
You should have to use thread concept instead of using fork(). for(i=0; i < Num_OF_Thread; i++) { pthread_create( &thread_id[i], NULL, print_message_function, NULL ); } void print_message_function( ) { // Task wich u want ro perform } 1 solved How to create k number of processes using fork() call, where k is not power of 2 … Read more
~abc is the destructor of abc. It’s a function that’s there to destroy an object when it isn’t needed anymore. At the end of the program every object is destroyed, for that the program calls every destructor. You defined your destructor to print those lines, so it does. Also, every object in the tree inherits … Read more
node is a type, not a pointer’s name. So node->balance is not syntactically correct. 1 solved expected unqualified-id before ‘->’ token
In your first example, you MUST pass a char pointer for the “%s” modifier so it is actually the way it has to be, you would of course know that if you read the appropriate documentation, like e.g. The C Standard. The second one, is wrong. Because it would invoke undefined behavior. To print the … Read more
Exapmple One of the ways. #include <stdio.h> #include <stdlib.h> void end_proc(void){ printf(“Quitting the program…\n\n”); exit(0); } void input_error_proc(void){ int ch; printf(“ERROR\n”); while((ch = getchar()) != ‘\n’ && ch != EOF);//clear input } int main(void){ int program; while(1){ printf(“\n” “Choose one of the following programs: \n\n” ” (1) Fibonacci Sequence Calculator \n” ” (2) Decimal and … Read more