what is the error with the code??

Question

there is a problem in the c++ code. but i am not getting. the link is given below. it would be great help if someone helps me with finding the error of the code. the link is given below:

http://ideone.com/cEMBQB

thanks in advance

Vulpes · Answer

The problem is that you're trying to modify a constant string and so are getting an access violation. If you use a char array rather than char * then the compiler should treat is as a modifiable string and it should then work OK. I've also made another change in the reverse() function as at present you're reversing the first 8 characters of the second string not the first 7: #include #include using namespace std; void reverse( char str[]  int count = 0); int main() { char s1[] = This is a test.; char s2[] = I like C++.; reverse(s1); // reverse entire string reverse(s2 7); // reverse 1st 7 chars cout cout return 0; } void reverse( char str[]  int count) { int i j; char temp; if(!count) count = strlen(str); // not now subtracting 1 for(i=0 j=count -1; i temp = str[i]; str[i] = str[j]; str[j] = temp; } }