Start C Programming

Learn C by running code one line at a time and watching memory change. Pointers are hard because you cannot see them. Each time you run a line, this app draws the stack frame of each call, the variables inside it, the heap blocks you borrow with malloc, and where each pointer points. The value that changed last turns yellow, and you can step back to see it again. Step through and rewind - Run to the next line, back to the previous line, to a breakpoint, or to the end - Watch frames pile up when a function is called and disappear when it returns - Pointers are arrows, arrays are rows of slots, and structs show their members and padding - Tap a variable to see its bytes in hex, decimal, binary, or characters - Set scanf input, command-line arguments, and files before you run, and see what your program read and wrote - Processes and threads appear in tables, and each process's memory,…