File: c99-variable-length-array-cxx11.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 (30 lines) | stat: -rw-r--r-- 1,222 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 -Wvla-extension %s
struct StillPOD {
  StillPOD() = default;
};

struct StillPOD2 {
  StillPOD np;
};

struct NonPOD {
  NonPOD(int) {}
};

struct POD {
  int x;
  int y;
};

// We allow VLAs of POD types, only.
void vla(int N) { // expected-note 5{{here}}
  int array1[N]; // expected-warning{{variable length arrays are a C99 feature}} expected-note {{parameter 'N'}}
  POD array2[N]; // expected-warning{{variable length arrays are a C99 feature}} expected-note {{parameter 'N'}}
  StillPOD array3[N]; // expected-warning{{variable length arrays are a C99 feature}} expected-note {{parameter 'N'}}
  StillPOD2 array4[N][3]; // expected-warning{{variable length arrays are a C99 feature}} expected-note {{parameter 'N'}}
  NonPOD array5[N]; // expected-error{{no matching constructor for initialization of 'NonPOD [N]'}}
  // expected-warning@-1{{variable length arrays are a C99 feature}} expected-note@-1 {{parameter 'N'}}
  // expected-note@-16{{candidate constructor not viable}}
  // expected-note@-18{{candidate constructor (the implicit copy constructor) not viable}}
  // expected-note@-19{{candidate constructor (the implicit move constructor) not viable}}
}