This question already has answers here:
fgets doesn't work after scanf [duplicate]
(7 answers)
scanf() leaves the newline character in the buffer
(7 answers)
Closed 12 days ago.
I have do while menu setup and inside is the switch statement to select each menu option. However when you select option "1" it immediately loads two of my printf() statements without allowing the user to input for one of the statements (I'm using fgets()).
When I input 1 during the initial menu, it immediately prompts me with
"Enter Name of Artist:
Enter Name of song: "
And If input anything it accepts it, takes me to the next printf, "Enter song length: "
And that's it. I can't seem to understand why I don't get prompted the first two printf's one after the other.
Thanks
Related
This question already has answers here:
scanf() leaves the newline character in the buffer
(7 answers)
Closed 1 year ago.
I'm new to programming, trying to learn C.
The program below is showing no signs of error still the output is not correct. I tried it without using '&' sign as "ms" and "sc" are characters but still that doesn't work. What am I doing wrong?
the problem is that you missed enclosing quotation marks in the scanf call
replace the following
line 5: scanf("%c",&ms)
line 7: scanf("%c",&sc)
This question already has answers here:
fgets doesn't work after scanf [duplicate]
(7 answers)
Closed 2 years ago.
discrepency
Hi everyone,
Currently working on some Harvard's CS50 problems, I've noticed that substituting get_int by scanf makes my program behave erratically.
The problem at hand here consists in creating a plurality election mockup. And the simple fact that I replace get_int by scanf in order to register the number of votes during the election ends up signalling the first vote as 'invalid' (a function later in the code is charged of checking vote validity).
I've checked multiple times, used the debugger, but to no avail.
Any hints as to why that happens would be deeply appreciated.
scanf("%i", &vote_count) does not consume anything after the number. What comes after the number is most likely a newline character, which is what will be seen by get_string. That probably causes the first name to be an empty string.
You should see all that if you use a debugger.
This question already has answers here:
How do you allow spaces to be entered using scanf?
(11 answers)
Closed 3 years ago.
I need to read the text using scanf, but what I know scanf is reading characters to the first space. I don't know that it's possible to read more words into the array by scanf and i have no any idea.
That's not correct; scanf reads according to the format string you give it.
Nothing keeps you from using a format that reads past spaces, returns, or whatever else, for example scanf("%50c",buffer); will read 50 characters, no matter what they are; or scanf("%[^|]", buffer); will read everything up the first |. Read up on the definition of the scanf family.
This question already has answers here:
Non blocking getch()
(2 answers)
Closed 3 years ago.
I am making a typing game in C Language in this game letters come from the top of the window and user has to type that letter to delete it and to stop it from touching the specific boundary line if it touches the boundary line user lose points and ultimately lose the game. Now I am having trouble to print the list of the characters and take input at the same time. If I tried to use the scanf() or getch() function they both stop the printing process is there any way that I could get input from a user without stopping the printing process.
Kbhit Function really Works for that problem.
This question already has answers here:
Capture characters from standard input without waiting for enter to be pressed
(21 answers)
Closed 6 years ago.
I cant use scanf() because to receive integer input you need to press ENTER (when you are running the program).
Use curses library and use getch function to read a key without pressing enter. This works on linux and i think you can also use it on windows
If you are in Windows, then use getch() from conio.h
If you are in Unix/Linux.. you will probably need some terminal/tty adjustments. Check here:
What is Equivalent to getch() & getche() in Linux?