src.cpp: In function 'int main()':
src.cpp:21:16: error: expected unqualified-id before '[' token
for (auto& [key, val] : a) {
^
src.cpp:21:16: error: expected ';' before '[' token
src.cpp:21:17: error: 'key' was not declared in this scope
for (auto& [key, val] : a) {
^
src.cpp:21:22: error: 'val' was not declared in this scope
for (auto& [key, val] : a) {
^
src.cpp: In lambda function:
src.cpp:21:27: error: expected '{' before ':' token
for (auto& [key, val] : a) {
^
src.cpp: In function 'int main()':
src.cpp:21:27: error: expected ';' before ':' token
src.cpp:21:27: error: expected primary-expression before ':' token
src.cpp:21:27: error: expected ')' before ':' token
src.cpp:21:27: error: expected primary-expression before ':' token