It looks like the line is outside the main() function. You can’t do that, because you can’t execute code outside functions. The only thing you can do at global scope is declaring variables. Just move it inside the main() or any other function, and the problem should go away. (PS: Take a look at this … Read more
This rule is wrong. It says to create a file named producer.o (with -o producer.o), but you want to create a file named main. Please excuse the shouting, but ALWAYS USE $@ TO REFERENCE THE TARGET: As Shahbaz rightly points out, the gmake professionals would also use $^ which expands to all the prerequisites in … Read more
Sometimes “Nothing to be done for all” error can be caused by spaces before command in makefile rule instead of tab. Please ensure that you use tabs instead of spaces inside of your rules. instead of Please see the GNU make manual for the rule syntax description: https://www.gnu.org/software/make/manual/make.html#Rule-Syntax
strcpy adds a null terminator character ‘\0’. You forgot to allocate space for it: You need to add space for 5 characters: 4 for “.tde” suffix, and one more for the ‘\0’ terminator. Your current code allocates only 4, so the last write is done into the space immediately after the block that you have … Read more
It looks good. You only need to add a ./ before your executable. Without it, valgrind fails to find it and reports ‘command not found’.
auto is a modifier like static. It defines the storage class of a variable. However, since the default for local variables is auto, you don’t normally need to manually specify it. This page lists different storage classes in C.
Just include <stdbool.h> if your system provides it. That defines a number of macros, including bool, false, and true (defined to _Bool, 0, and 1 respectively). See section 7.16 of C99 for more details.
Your code has something like this:
Only pointers returned by calls to malloc(), realloc() or calloc() can be passed to free() (dynamically allocated memory on the heap). From section 7.20.3.2 The free function of C99 standard: The free function causes the space pointed to by ptr to be deallocated, that is, made available for further allocation. If ptr is a null … Read more
The above statement defines get to be a pointer to a character. It can store the address of an object of type char, not a character itself. The problem is with both scanf and strcmp call. You need to define an array of characters to store the input string.