File: for-range-unused.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (21 lines) | stat: -rw-r--r-- 471 bytes parent folder | download | duplicates (38) 
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}}
}