int main ()
{
char s[32] = "niksat";
char t[32] = "";
strrev (s); //taskin
strcpy (t, s);
strcat (t, "so so");
puts (t);
printf("%d\n", strcmp("taskvar", t));
return 0;
}
Output
Taskin so so
13
Description
This code snippet demonstrates the use of various string manipulation functions from the C Standard Library. Let's break down the code step by step:
Here's what the code does:
1. The code includes the necessary header files (`<stdio.h>` for standard input/output and `<string.h>` for string manipulation functions).
2. Inside the `main()` function:
- A character array `s` is initialized with the string "niksat".
- An empty character array `t` is initialized.
3. The `strrev(s)` function is called to reverse the string in array `s`. The result of this operation is that `s` now contains the string "taskin".
4. The `strcpy(t, s)` function is used to copy the contents of `s` (which is now "taskin") into `t`, making `t` also "taskin".
5. The `strcat(t, "so so")` function concatenates the string "so so" to the end of the `t` array, resulting in `t` becoming "taskinso so".
6. The `puts(t)` function is used to print the concatenated string `t` ("taskinso so").
7. The `printf("%d\n", strcmp("taskvar", t));` line compares the string "taskvar" with the contents of the array `t`. The `strcmp` function returns an integer:
- If the two strings are equal, it returns 0.
- If the first string is lexicographically less than the second string, it returns a negative value.
- If the first string is lexicographically greater than the second string, it returns a positive value.
The comparison is between "taskvar" and "taskinso so", so the printed output is likely a non-zero value.
8. The program then returns 0 to indicate successful execution.
Overall, this code demonstrates the use of various string manipulation functions to reverse, copy, and concatenate strings, as well as to compare strings.
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