why we use pointer here and
can we use other variable here
String tokenizer
@Ankit_123 No we have to use pointer here. It is defined within the strtok function.
On a first call, the function expects a C string as argument for str, whose first character is used as the starting location to scan for tokens. In subsequent calls, the function expects a null pointer and uses the position right after the end of the last token as the new starting location for scanning.
Refer this:
http://www.cplusplus.com/reference/cstring/strtok/
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