Why is system("clear") executing prematurely?

[Adam Rinkleff]

In input(), system("clear") executes first in a while loop, and then add(); is called... however, before add(); finishes and returns to input(), system("clear"); is called again and executes in the middle of add();

	while (continu==1){
		system("clear");
		printf("\n\nEnter Command: ");
			fgets(input, sizeof(input), stdin);
    				if ((p = strchr(input, '\n')) != NULL)
      				*p = '\0';
			if (strcmp(input, "a")==0){add();}
	}

Here is add();

void add(){
char input[250];
char *p;

		List *new=(List *)malloc(sizeof(List));



		printf("\n\nEnter Name: ");
			fgets(input, 250, stdin);
    				if ((p = strchr(input, '\n')) != NULL)
      				*p = '\0';
			strcpy(new->name, input);
			printf("Name: %s", new->name);

		printf("\n\nEnter Number: ");
			fgets(input, sizeof(input), stdin);
    				if ((p = strchr(input, '\n')) != NULL)
      				*p = '\0';
				strcpy(new->number, input);       <--------- Why would system("clear") execute here??????
				printf("Number: %s", new->number);
}

When I run the program, system("clear"); executes a second time, right before the final line of add(); such that the screen is cleared prematurely, and then the final printf statement is executed, followed by the "Enter Command" from input();

[Adam Rinkleff]

It should look like this:

---------------Top of the Screen------------------


Enter Command:


Instead I get:

---------------Top of the Screen------------------
Number: 123456789

Enter Command:

[quzah]

printf does not guarantee a write unless you have a newline or an fflush call after it.


Quzah.

[Adam Rinkleff]

Thanks! The following seems to work just fine:

printf("Number: %s\n", new->number);