in solving a string challenge (strtok implementation video)
why is it necessary to do
charptr= strtok((char)str.c_str( ), " ")
because previously in videos we were directly giving any string to stroke
e.g.
string s= " today is a rainy day ";
char*ptr = strtok(s, " ");
this is wrong you can’t pass string in strtok() function it should be char array
that is why we have write (*char )str.c_str( ); to convert string into character array
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