format-test fails 3 tests under GCC with -std=c++11 rather than -std=gnu++11 #1787
Description
Building and running format-test on Ubuntu 20.04 with:
rm -rf build
mkdir build
cmake -GNinja -Bbuild -H. -DCMAKE_CXX_EXTENSIONS=OFF
ninja -C build format-test
build/bin/format-test…I get three failures:
[...]
[ RUN ] FormatterTest.FormatBin
[ OK ] FormatterTest.FormatBin (0 ms)
[ RUN ] FormatterTest.FormatDec
../test/format-test.cc:1124: Failure
Value of: format("{0}", static_cast<__int128_t>((9223372036854775807L)) + 1)
Actual: "0"
Expected: "9223372036854775808"
../test/format-test.cc:1126: Failure
Value of: format("{0}", static_cast<__int128_t>((-9223372036854775807L-1)) - 1)
Actual: "4294967295"
Expected: "-9223372036854775809"
../test/format-test.cc:1128: Failure
Value of: format("{0}", static_cast<__int128_t>((18446744073709551615UL)) + 1)
Actual: "0"
Expected: "18446744073709551616"
../test/format-test.cc:1130: Failure
Value of: format("{0}", int128_max)
Actual: "4294967295"
Expected: "170141183460469231731687303715884105727"
../test/format-test.cc:1132: Failure
Value of: format("{0}", int128_min)
Actual: "0"
Expected: "-170141183460469231731687303715884105728"
../test/format-test.cc:1134: Failure
Value of: format("{0}", uint128_max)
Actual: "4294967295"
Expected: "340282366920938463463374607431768211455"
[ FAILED ] FormatterTest.FormatDec (0 ms)
[ RUN ] FormatterTest.FormatHex
../test/format-test.cc:1165: Failure
Value of: format("{0:x}", static_cast<__int128_t>((9223372036854775807L)) + 1)
Actual: "0"
Expected: "8000000000000000"
../test/format-test.cc:1167: Failure
Value of: format("{0:x}", static_cast<__int128_t>((-9223372036854775807L-1)) - 1)
Actual: "ffffffff"
Expected: "-8000000000000001"
../test/format-test.cc:1169: Failure
Value of: format("{0:x}", static_cast<__int128_t>((18446744073709551615UL)) + 1)
Actual: "0"
Expected: "10000000000000000"
../test/format-test.cc:1171: Failure
Value of: format("{0:x}", int128_max)
Actual: "ffffffff"
Expected: "7fffffffffffffffffffffffffffffff"
../test/format-test.cc:1172: Failure
Value of: format("{0:x}", int128_min)
Actual: "0"
Expected: "-80000000000000000000000000000000"
../test/format-test.cc:1173: Failure
Value of: format("{0:x}", uint128_max)
Actual: "ffffffff"
Expected: "ffffffffffffffffffffffffffffffff"
[ FAILED ] FormatterTest.FormatHex (0 ms)
[ RUN ] FormatterTest.FormatOct
../test/format-test.cc:1200: Failure
Value of: format("{0:o}", static_cast<__int128_t>((9223372036854775807L)) + 1)
Actual: "0"
Expected: "1000000000000000000000"
../test/format-test.cc:1202: Failure
Value of: format("{0:o}", static_cast<__int128_t>((-9223372036854775807L-1)) - 1)
Actual: "37777777777"
Expected: "-1000000000000000000001"
../test/format-test.cc:1204: Failure
Value of: format("{0:o}", static_cast<__int128_t>((18446744073709551615UL)) + 1)
Actual: "0"
Expected: "2000000000000000000000"
../test/format-test.cc:1206: Failure
Value of: format("{0:o}", int128_max)
Actual: "37777777777"
Expected: "1777777777777777777777777777777777777777777"
../test/format-test.cc:1208: Failure
Value of: format("{0:o}", int128_min)
Actual: "0"
Expected: "-2000000000000000000000000000000000000000000"
../test/format-test.cc:1210: Failure
Value of: format("{0:o}", uint128_max)
Actual: "37777777777"
Expected: "3777777777777777777777777777777777777777777"
[ FAILED ] FormatterTest.FormatOct (0 ms)
[ RUN ] FormatterTest.FormatIntLocale
[ OK ] FormatterTest.FormatIntLocale (0 ms)
[...]
[----------] Global test environment tear-down
[==========] 114 tests from 12 test cases ran. (14 ms total)
[ PASSED ] 111 tests.
[ FAILED ] 3 tests, listed below:
[ FAILED ] FormatterTest.FormatDec
[ FAILED ] FormatterTest.FormatHex
[ FAILED ] FormatterTest.FormatOct
3 FAILED TESTS
I think this is cause by the -DCMAKE_CXX_EXTENSIONS=OFF making the compilation command use -std=c++11 rather than -std=gnu++11.