Simple C Question

[LittleShell]

I have a simple question. Below I have typed a program that prompts one to input their name and the program then prints out their name. The program works fine if you enter just a first name. If you press space and enter your last name as well the program doesn't work. Why?

Here's the code:

#include <stdio.h>
#include <string.h>

int main()
{
    char *name[125];
    
    printf("Please enter your name: ");
    scanf("%s", &name);
    
    printf("Your name is %s ", name);
    
    getchar();
    getchar();
 }

[bithub]

scanf() stops at a space. If you want to read an entire line from a user (spaces and all), then use fgets() instead of scanf().

Also, your usage is incorrect. You declared an array of char pointers which is incorrect. You should have just declared an array of chars, and passed that to scanf(). The first paragraph regarding scanf() stopping at spaces still applies though.

[bythos]

i do not think getchar(); is needed.

[RockyMarrone]

you have to tell specifically to scanf that consider the new line character also \n

check your code with one modified line

#include <stdio.h>
#include <string.h>

int main()
{
  char *name[125];

  printf("Please enter your name: ");
  scanf("%[^\n]s", &name);

  printf("Your name is %s ", name);

  getchar();
  getchar();
}

[Epy]

i do not think getchar(); is needed.

It's to create a pause at the end of the program.

[Dino]

The simple answer is that scanf() leaves the newline character in the input buffer from the first issuance, and the second time scanf() is issued, it sees the newline character in the input buffer and treats the input as empty.

[LittleShell]

Thank you to all! I know it was a simple question but I had to ask. Thank you to each of you for sharing your experience.

LittleShell