Section: String Functions
p = strstr(x,y)
where x and y are two strings. The returned integer p
indicates the index into the string x where the substring y
occurs. If no instance of y is found, then p is set to
zero.
strstr in action
--> strstr('hello','lo')
ans =
4
--> strstr('quick brown fox','own')
ans =
9
--> strstr('free stuff','lunch')
ans =
0