modernize-avoid-c-arrays.cpp
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// RUN: %check_clang_tidy %s modernize-avoid-c-arrays %t
int a[] = {1, 2};
// CHECK-MESSAGES: :[[@LINE-1]]:1: warning: do not declare C-style arrays, use std::array<> instead
int b[1];
// CHECK-MESSAGES: :[[@LINE-1]]:1: warning: do not declare C-style arrays, use std::array<> instead
void foo() {
int c[b[0]];
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not declare C VLA arrays, use std::vector<> instead
using d = decltype(c);
d e;
// Semi-FIXME: we do not diagnose these last two lines separately,
// because we point at typeLoc.getBeginLoc(), which is the decl before that
// (int c[b[0]];), which is already diagnosed.
}
template <typename T, int Size>
class array {
T d[Size];
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not declare C-style arrays, use std::array<> instead
int e[1];
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not declare C-style arrays, use std::array<> instead
};
array<int[4], 2> d;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: do not declare C-style arrays, use std::array<> instead
using k = int[4];
// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: do not declare C-style arrays, use std::array<> instead
array<k, 2> dk;
template <typename T>
class unique_ptr {
T *d;
int e[1];
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not declare C-style arrays, use std::array<> instead
};
unique_ptr<int[]> d2;
// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not declare C-style arrays, use std::array<> instead
using k2 = int[];
// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not declare C-style arrays, use std::array<> instead
unique_ptr<k2> dk2;
// Some header
extern "C" {
int f[] = {1, 2};
int j[1];
inline void bar() {
{
int j[j[0]];
}
}
extern "C++" {
int f3[] = {1, 2};
// CHECK-MESSAGES: :[[@LINE-1]]:1: warning: do not declare C-style arrays, use std::array<> instead
int j3[1];
// CHECK-MESSAGES: :[[@LINE-1]]:1: warning: do not declare C-style arrays, use std::array<> instead
struct Foo {
int f3[3] = {1, 2};
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not declare C-style arrays, use std::array<> instead
int j3[1];
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not declare C-style arrays, use std::array<> instead
};
}
struct Bar {
int f[3] = {1, 2};
int j[1];
};
}