File: for-range-unused.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (21 lines) | stat: -rw-r--r-- 471 bytes parent folder | download | duplicates (37) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
// RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11 -Wunused

// PR9968: We used to warn that __range is unused in a dependent for-range.

template <typename T>
  struct Vector {
    void doIt() {
      int a; // expected-warning {{unused variable 'a'}}

      for (auto& e : elements) // expected-warning {{unused variable 'e'}}
        ;
    }

    T elements[10];
  };


int main(int, char**) {
  Vector<int>    vector;
  vector.doIt(); // expected-note {{here}}
}