fgets

[Bill Cunningham]

I have been away from C for awhile and need a refresher. fgets 2nd
parameter takes an int but the 1st takes a string. When I compile what I
write everything works fine but this is what I type-

#include <stdio.h>

int main()
{
char p[5];
printf("enter code-> ");
fflush(stdout);
fgets (p,sizeof(int),stdin);
printf("%s\n",p);
return 0;
}

Everything's cool and works the way I want. But is there a similarity
with the 5 chars and the ints in fgets 2nd parameter? I shouldn've used 5
for int should I have?

Bill

 

[Gregory Pietsch]

    I have been away from C for awhile and need a refresher. fgets 2nd
parameter takes an int but the 1st takes a string. When I compile what I
write everything works fine but this is what I type-

#include <stdio.h>

int main()
{
    char p[5];
    printf("enter code-> ");
    fflush(stdout);
    fgets (p,sizeof(int),stdin);

What's the sizeof(int) for? The fgets function reads in a string. If
you want to convert the string to an integer, use atoi, atol, atoll,
strtol, strtoul, or strtoull. -- Gregory Pietsch