Didnt understand code

#1

as in code there is a line as
char s=strtok((char)str.c_str()," ");

  1. in this what is the function of (char*)
  2. what is the function of c_str() function
  3. what this is doing in the code

pls explain i have lot of confusion in understanding this code

#2

hello @shivamgoel150
c_str() function is used to convert c++ string into c style string.
it returns const char* type pointer but strtok takes char* type pointer thats why we are using (char* ) to explicitly type cast const char* into char*.

#3

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