1
I’m starting to learn C, and I came across the following doubt:
When I ask the user to inform me a song or artist, he ends up informing me a song with spaces, like "AS I AM", however the program skips the part of the music and the artist, how to solve this?
printf("MUSICA: ");
scanf("%s", novo->nome);
printf("ARTISTA: ");
scanf("%s", novo->artista);
printf("ANO: ");
scanf("%d", &novo->ano);
2
the scanf accepts several different structures to perform input values, and to capture an entire line, you must use a structure that reads up to a specific character.
char line[500];
scanf("%[^\n]",line);
The brackets "[" and "]", inform that you will have a condition, the " " indicates that you must collect everything that is typed until you reach " n".
Without specifying the size of the buffer in the format string, there is the risk of a buffer overflow. The correct for this example is scanf("%499[^\n]", line);
that I didn’t know, will be very useful to me.
@Gomiero is safer using the fgets in this case, fgets(line, sizeof(line), stdin) is a great way to avoid buffer overflow.
@Denercarvalho: Exact! It is always best to use the fgets to obtain a user input than the scanf :)
but if the variable is a char pointer, you wouldn’t be able to pick up the size through the sizeof and often use char pointers inside structs.
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typedef struct musica{ char nome[100]; char artista[100]; int ano; struct musica *Prox; }musica;
– Arthur Azevedo
The answer has already solved your problem, I forgot to remove my comment.
– gato