Could someone explain why this happens

[GSLR]

Hi everyone

I was fiddling with some code ln and came across a dilemma ,here is the code

# include <stdio.h>
# include <conio.c>

/********************************** FUNCTION PROTOTYPES ********************/

int test(void);

/********************************** BEGIN MAIN  ****************************/

int main(int argv, char *argc[])
{
 int number;
 printf("Enter a number:");
 scanf("%d",&number);
 switch (number){
                 case (1):
                         test();
                 break;
                 }

     system("PAUSE");
      return 0;
}

/********************************** FUNCTION ******************************/

int test(void)
{
int f;
char name_test[20];

clrscr();
printf("Program is here");
//scanf("%d",&f);
gets(name_test);
 printf(name_test);
 return 0;
 }

ok so whats the problem, well if i run this program as is the gets function is never called or (skipped) so i never get to input some text.
I found that if i put a scanf function just before the gets function the program halts and allows me to enter input into the char array.
I found tht it was the switch command that was creating all this hassle and i was just wondering why?

Thanx for your help.

[Brighteyes]

Don't mix scanf and gets, the newline that scanf tends to leave in the input stream immediately satisfies gets and you never get a chance to enter more data. You shouldn't be using gets anyway, there's no way to make it safe. Try this instead:

/* Read the data then ignore a single character, presumably the newline */
scanf("%d%*c",&number);

then

/* Use fgets to get the name */
fgets(name_test, sizeof (name_test), stdin);

[GSLR]

Hi

ok i just tried to replace gets with fgets and when i run the program with the scanf function remed out it still skips the fgets function and doesnt allow me to enter the input from stdin.

Thanx

# include <stdio.h>
# include <conio.c>

/********************************** FUNCTION PROTOTYPES ********************/

int test(void);

/********************************** BEGIN MAIN  ****************************/

int main(int argv, char *argc[])
{
 int number;
 printf("Enter a number:");
 scanf("%d",&number);
 switch (number){
                 case (1):
                         test();
                 break;
                 }

     system("PAUSE");
      return 0;
}

/********************************** FUNCTION ******************************/

int test(void)
{
int f;
char name_test[20];

clrscr();
printf("Program is here");
//scanf("%d",&f);    /*i dont want to use this to pause prog flow
fgets(name_test,20,stdin);                   /*MODIFIED LINE*/
 printf(name_test);
 return 0;
 }

[GSLR]

Thanx Salem

much appreciated.