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Kod: Markera allt

func(int n){
printf("%d\n",n);
return func(n+1);
}

int main(){
func(0);
}

Kod: Markera allt

$ cc rekurs/warn=(enab=level6,verbose)

func(int n){
^
%CC-I-DEFRETURNTYPE, The type of the function func defaults to "int".
at line number 2 in file USER:[JANNE]REKURS.C;2
Description: A function definition did not include a type specifier for the function's return value. 
It will default to int. This might not be what you intend. This is also a violation of the C99 Standard. 
User Action: It is a good programming practice to give all function definitions explicit return types. 

printf("%d\n",n);
^
%CC-I-IGNORECALLVAL, In this statement, the value returned from the function "printf(...)" is not used
- if this is intended, it should be cast to "void".
at line number 3 in file USER:[JANNE]REKURS.C;2
Description: A function that returns a value has been invoked, yet the value was not used.
This might not have been what you intended. 
User Action: Cast the function to void to suppress the message. 

int main(){
....^
%CC-I-NOPARMLIST, The declaration of the function main has an empty parameter list.
If the function has parameters, they should be declared here; if it has no parameters,
"void" should be specified in the parameter list.
at line number 7 in file USER:[JANNE]REKURS.C;2
Description: The recommended way to declare a function that takes no parameters is to use "void" in the parameter list. 
User Action: Make the recommended change. 

func(0);
^
%CC-I-IGNORECALLVAL, In this statement, the value returned from the function "func(...)" is not used
- if this is intended, it should be cast to "void".
at line number 8 in file USER:[JANNE]REKURS.C;2
Description: A function that returns a value has been invoked, yet the value was not used.
This might not have been what you intended. 
User Action: Cast the function to void to suppress the message. 
$ 

Kod: Markera allt

string aaa;
int bbb;
if (int.TryParse(aaa, out bbb)) { /* Tomt här! Beräkning sker i själva if()-villkoret */}

Kod: Markera allt

string aaa;
int bbb;
int.TryParse(aaa, out bbb);

Kod: Markera allt

int func(int n){
(void)printf("%d\n",n);
return func(n+1);
}

int main(void){
(void)func(0);
return 0;
}

Kod: Markera allt

             0030       L$2:
A7420020     0030               LDQ     R26, 32(R2)
47E30411     0034               MOV     n, R17                                  ; R3, R17
47E05419     0038               MOV     2, R25
22020030     003C               LDA     R16, 48(R2)
A7620028     0040               LDQ     R27, 40(R2)
40603003     0044               ADDL    n, 1, n                                 ; R3, 1, R3
6B5A4000     0048               JSR     R26, DECC$GXPRINTF                      ; R26, R26
C3FFFFF8     004C               BR      L$2