dev c++ - Problems assigning char string to char array -


I have already read all the pre-related answers to my problem, however, I am unable to understand it is not a very bright codec I can check my problem.

I am trying to write a CSV file using entries from the 2D array. String.h has already been included in the main (). 

  zero create_marks_csv (int root [] [20], float p [] [20], float si [] [20], int n) {system ("cls"); Four straws [100], strobe [100], Strauss [100]; Printf ("Enter the filename for \ nwriting matrix" :); Gets (str1); Printf ("create \ n% s.csv file", str1); File * FP; Int i, j; Str1 = strcat (str1, "csv."); Str1 = strcat ("C: \\ User \\ Neil \\ Document \\ Trust CSV Log \\", str1); fp = fopen (str1, "w +"); For (i = 1; i & lt; = n; i ++) {for (j = 1; j & lt; = n; j ++) {if (i == j) fprintf (FP, "X "); Other fprintf (FP, "% d", root [i] [j]); } Fprintf (FP, "\ n"); } Fclose (fpose); Printf ("File created:% s", str1); System ("cls"); }   
 Alerts and Errors are as follows:  
  5 20c: \ user \ neil \ document \ main.c [warning] #include additional tokens End of Instructions [enabled by default] C: \ Users \ Neil \ Documents \ main.c in function 'create_marks_csv': 168 6 C: \ Users \ Neil \ Documents \ main.c [Error] Type incompatible type 'four' Type [4] Type 'four' * 1696C: \ user \ neil \ document \ main.c [error] Incompatible type when 'char [100]' type 'four * '28C: \ Users \ Neil \ Documents \ Make Makefile Target win recipe 'main.o' failed    
 
 
 Each time you type  str1 = , then you are asking to change the compiler to  str1  so that it indicates that the location in the memory is found on its right hand side  =  Sign in but you have declared  four straw [100] , which means that  str1  is interpreted as an indicator, that place To start the 100-letter block It can only tell if the declaration is allocated to them, then there is no point in writing  str1 = . The first argument of  
  strcat  is likely to be a disaster, although passing the string continuously, although the compiler does not feel like the first argument of  vortex  is concatenation There should be sufficiently a character buffer to catch the results of To add something to the end of a constant string, you can allocate a buffer adequately, then make a constant copy of the string, then call  strcat .  
 In general, what you probably need to do without the return value of  strcat  is that  strcat  is defined as  There is no need to write  = on the right side . It is advisable to use  
 instead of  fgets , because then you can avoid the possibility that you can get more input If you assign 100 characters to your biggest buffer to fit into your allotted character buffer, then you only get the string  "C: \\ Users \\ Neil \\ Document \\ Trust CSV log \\" . (Other 5 characters are required to keep the string  ".csv"  and the terminal faucet character.)  
 I also noticed that you have  str2  Declare and  str3  but I did not know why you used one of these. It seems that you do not need both of them, but it may be appropriate to use  str2  as a buffer for the last closing of your code.

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