I am working through the K&R 2nd Edition and have run into a curious problem with exercise 3-2. For some reason only the \n shows up like it's supposed to and of the two tabs in my original string, one shows up as \ while the other is missing completely. I also get varying amounts of garbage in the string, the most current output string being "I \ am (micro symbol mu) . \n". Even more curious is there are a couple more spaces between the \n and period than in the original. I looked up the solution (https://code.google.com/p/k-and-r-exercises/source/browse/3-2.c) and it is fairly similar to what I did. Furthermore, I did two putchars in main, '\' and 't', and got the \t to display without issue. I am pretty stumped on what is causing this error and could really use your advice.
#include<stdio.h>
#include<string.h>
void switchFunction(char s[], char t[]);
main(){
char originalString[] = "I \t am \t . \n \0";
char copiedString[1000];
char a, b;
switchFunction(originalString, copiedString);
printf(originalString);
printf("\n");
printf(copiedString);
printf("\n");
a = '\\';
b = 't';
putchar(a);
putchar(b);
}
void switchFunction(char s[], char t[]){
int i;
int j = 0;
int originalStringLen;
originalStringLen = strlen(s);
printf("Original is %d characters.\n", originalStringLen);
for(i = 0; i < originalStringLen; ++i){
switch(s[i]){
case '\n':
t[j] = '\\';
j++;
t[j] = 'n';
j++;
break;
case '\t':
t[j] = '\\';
j++;
t[j] = 't';
j++;
break;
default:
t[i] = s[i];
j++;
}
}
t[j] = '\0';
}
P.S. I did a putchar for every character in the new string inside the function (as they were getting assigned) and got significantly more garbage characters although the \t's show up without issue.
