When I compile and run this the output is:
press n to continue
n
Enter the filename: [ �h�� ]
But, if I call the new(); directly it run perfectly. But when I call new(); in if statement or switch statement, it shows the above output. I tried scanf , fgets and gets in the new() fucntion but still not working.
#include<stdio.h>
#include<stdlib.h>
int menu();
int new();
int main(){
menu();
return 0;
}
int menu(){
printf("press n to continue\n");
//char c = getc(stdin);
char c = getchar();
if(c=='n'){
new();
}
else if(c==27){
return 0;
}
}
int new(){
char filename[50];
printf("Enter the filename: ");
//fgets(filename, 50, stdin);
scanf("%[^\n]s", filename);
printf("[ %s ]\n\n", filename);
return 0;
}
getchar()
will read one character from stdin and leave the \\n. So when you call scanf - it stops immediately and you got nothing. To skip whitespaces and start reading from non-space character add space before format.
scanf(" %49[^\n]", filename);
Do not mix %[] and %s
Always specify max number of chars to read (leaving one additional char for nul-terminator)
And compile with highest warning level - so you do not leave menu function without return.
Oh. and check the return value of scanf
if(scanf(" %49[^\n]", filename) == 1)
printf("[ %s ]", filename);
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