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/* { dg-options "-fdiagnostics-show-caret" } */
/* Verify that we emit a "return *this;" fix-it hint for
a missing return in an assignment operator. */
struct s1 {
s1& operator=(const s1&) { } // { dg-warning "no return statement in function returning non-void" }
/* { dg-begin-multiline-output "" }
s1& operator=(const s1&) { }
^
return *this;
{ dg-end-multiline-output "" } */
};
/* Likewise for +=. */
struct s2 {
s2& operator+=(const s2&) {} // { dg-warning "no return statement in function returning non-void" }
/* { dg-begin-multiline-output "" }
s2& operator+=(const s2&) {}
^
return *this;
{ dg-end-multiline-output "" } */
};
/* No warning for "void" return. */
struct s3 {
void operator=(const s3&) { }
};
/* We shouldn't issue the fix-it hint if the return type isn't right. */
struct s4 {
int operator=(int) { } // { dg-warning "no return statement in function returning non-void" }
/* { dg-begin-multiline-output "" }
int operator=(int) { }
^
{ dg-end-multiline-output "" } */
};
/* Example of a multi-line fix-it hint. */
struct s5 {
int i;
s5& operator=(const s5& z) {
i = z.i;
} // { dg-warning "no return statement in function returning non-void" }
/* { dg-begin-multiline-output "" }
i = z.i;
+ return *this;
}
^
{ dg-end-multiline-output "" } */
};
/* Example of a multi-line fix-it hint with other statements. */
extern void log (const char *);
struct s6 {
int i;
s6& operator=(const s6& z) {
log ("operator=\n");
i = z.i;
} // { dg-warning "no return statement in function returning non-void" }
/* { dg-begin-multiline-output "" }
i = z.i;
+ return *this;
}
^
{ dg-end-multiline-output "" } */
};
/* Another example of a multi-line fix-it hint with other statements. */
struct s7 {
int i;
s7& operator=(const s6& z) {
if (z.i)
log ("operator=\n");
else
log ("operator=\n");
i = z.i;
} // { dg-warning "no return statement in function returning non-void" }
/* { dg-begin-multiline-output "" }
i = z.i;
+ return *this;
}
^
{ dg-end-multiline-output "" } */
};
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