Hello all,
I am making a program that can solve for x. I have already made the program break the string into individual parts using strtok(). However, I don't know how to make the code that checks an individual token for x. For instance if I have 54x + 8 = 22. The program can break it into the tokens 54x, +, 8, = 22, but I don't know how to make the program recognize that 54 has an x in it. Any help would be appreciated.
Thank you for reading this message
Look into the strchr() function in string.h, it will return a pointer to the first occurrence of the character or NULL if not found. It's also possible to create a similar function, that checks if each char in the string is equal to 'x'.
Code:char *found = strchr(argv[1], 'x'); if(found) printf("%c\n", *found); else printf("Not found");
These sort things can be very easly be solved using the state machine. But here is an simple solution
ssharishCode:char exp[] = "54x"; char V; int d; if( sscanf( exp, "%d%c", &d, &V) == 2 ) print d, V else print FAILED
Life is like riding a bicycle. To keep your balance you must keep moving - Einstein
