Remove Asterisks from C Strings
You can write a function to remove asterisks at the beginning and end of a string, following these steps:
- Create a function, for example removeStars, which takes a string as a parameter.
- Use a while loop to iterate through the string and find the position of the first non-asterisk character, which is then labeled as start.
- Using a while loop to iterate through the string in reverse order, find the position of the first non-asterisk character and label it as “end”.
- Extract the substring between start and end using the substr function, which is the string with the leading and trailing asterisks removed.
- Return the string without the leading and trailing asterisks.
Here is an example code:
#include <stdio.h>
#include <string.h>
char* removeStars(char* str) {
int start = 0;
int end = strlen(str) - 1;
while(str[start] == '*') {
start++;
}
while(str[end] == '*') {
end--;
}
return str + start;
}
int main() {
char str[] = "****Hello, World!****";
char* result = removeStars(str);
printf("Result: %s\n", result);
return 0;
}
In the example above, the removeStars function will eliminate the leading and trailing asterisks from the string ‘str’ and return the modified string.