https://bugs.llvm.org/show_bug.cgi?id=38350
Bug ID: 38350
Summary: cannot initialize a variable of type A with an rvalue
of type A
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: zhong...@pku.org.cn
CC: llvm-bugs@lists.llvm.org
The code is as follow:
#include <iostream>
void test(const int *data, int dimension)
{
const int (*m)[dimension] = reinterpret_cast<const
int(*)[dimension]>(data);
for (int i = 0; i < dimension; ++i) {
for (int j = 0; j < dimension; ++j)
std::cout << m[i][j] << " ";
std::cout << std::endl;
}
}
int main()
{
int data[][2] = { {1, 2}, {3, 4} };
test(*data, 2);
return 0;
}
clang rejects the code:
error: cannot initialize a variable of type 'const int (*)[dimension]' with an
rvalue of type 'const int (*)[dimension]'
const int (*m)[dimension] = reinterpret_cast<const
int(*)[dimension]>(data);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
gcc accepts it.
My gcc is 9.0.0 and my clang is 7.0.0.
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