http://llvm.org/bugs/show_bug.cgi?id=22734
Bug ID: 22734
Summary: clearer categories for overload resolution failures
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Testcase:
void overloaded(int, float);
void overloaded(float, int);
void overloaded(int, float, double);
void overloaded(float, int, double);
void test() {
overloaded(1, 2, 3, 4);
overloaded(1);
}
We emit a lengthy diagnostics pointing to each overload with a note. Consider
emitting "no matching function for call to 'overloaded', called with 4
arguments but no overload has that many parameters", and maybe not emitting all
the notes.
$ clang b14434192.cc
b14434192.cc:6:3: error: no matching function for call to 'overloaded'
overloaded(1, 2, 3, 4);
^~~~~~~~~~
b14434192.cc:4:6: note: candidate function not viable: requires 3 arguments,
but
4 were provided
void overloaded(float, int, double);
^
b14434192.cc:3:6: note: candidate function not viable: requires 3 arguments,
but
4 were provided
void overloaded(int, float, double);
^
b14434192.cc:2:6: note: candidate function not viable: requires 2 arguments,
but
4 were provided
void overloaded(float, int);
^
b14434192.cc:1:6: note: candidate function not viable: requires 2 arguments,
but
4 were provided
void overloaded(int, float);
^
b14434192.cc:7:3: error: no matching function for call to 'overloaded'
overloaded(1);
^~~~~~~~~~
b14434192.cc:2:6: note: candidate function not viable: requires 2 arguments,
but
1 was provided
void overloaded(float, int);
^
b14434192.cc:1:6: note: candidate function not viable: requires 2 arguments,
but
1 was provided
void overloaded(int, float);
^
b14434192.cc:4:6: note: candidate function not viable: requires 3 arguments,
but
1 was provided
void overloaded(float, int, double);
^
b14434192.cc:3:6: note: candidate function not viable: requires 3 arguments,
but
1 was provided
void overloaded(int, float, double);
^
2 errors generated.
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