If flushing std doesn’t work, then try reading in the extra characters and discarding, as suggested here. This will work: #include <string.h> #include <stdio.h> int main(){ char nombre[10]; char mensaje[80]; int c; printf(“Type your name:\n”); scanf(“%9s”, nombre); while((c= getchar()) != ‘\n’ && c != EOF) /* discard */ ; printf(“Now, type a message:\n”); gets(mensaje); printf(“%s:%s”,nombre,mensaje); … Read more
The obvious answer is to learn from what the compiler is trying to tell you – you should never, ever, use gets(), as it is totally unsafe. Use fgets() instead, which allows you to prevent possible buffer overruns. #define BUFFER_SIZE 100 char buff[BUFFER_SIZE]; gets( buff); // unsafe! fgets( buff, sizeof(buff), stdin ); // safe
I’m the founder of Coderbyte and also the guy who created this gets(stdin) hack. The comments on this post are correct that it is a form of find-and-replace, so let me explain why I did this really quickly. Back in the day when I first created the site (around 2012), it only supported JavaScript. There … Read more
Try: scanf(“%d\n”, &a); gets only reads the ‘\n’ that scanf leaves in. Also, you should use fgets not gets: http://www.cplusplus.com/reference/clibrary/cstdio/fgets/ to avoid possible buffer overflows. Edit: if the above doesn’t work, try: … scanf(“%d”, &a); getc(stdin); …
In order to use gets safely, you have to know exactly how many characters you will be reading, so that you can make your buffer large enough. You will only know that if you know exactly what data you will be reading. Instead of using gets, you want to use fgets, which has the signature … Read more
Never use gets. It offers no protections against a buffer overflow vulnerability (that is, you cannot tell it how big the buffer you pass to it is, so it cannot prevent a user from entering a line larger than the buffer and clobbering memory). Avoid using scanf. If not used carefully, it can have the … Read more
In order to use gets safely, you have to know exactly how many characters you will be reading, so that you can make your buffer large enough. You will only know that if you know exactly what data you will be reading. Instead of using gets, you want to use fgets, which has the signature … Read more