Intellisense states: namespace "std" has no member "bit_cast". yet it compiles

[Dexus0]

Bug type: Language Service

Describe the bug

• OS and Version: Windows 10.0.19043 Build 19043
• VS Code Version: 1.62.3
• C/C++ Extension Version: v1.7.1

The bug

Intellisense marks std::bit_cast<>() as not being defined even though it is, also it doesn't auto complete it.
Furthermore the code compiles without errors.

Code sample and logs

Code sample

// test.cpp
#include <bit>

int main(int argc, char const *argv[])
{
    return std::bit_cast<int>(1.f);
}

Configurations in `c_cpp_properties.json`

{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "${workspaceFolder}/**"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "cStandard": "gnu17",
            "intelliSenseMode": "windows-gcc-x64",
            "compilerPath": "C:/msys64/mingw64/bin/g++.exe",
            "compilerArgs": [
                "-Os",
                "-std=c++20",
                "-Wall",
                "-Wconversion",
                "-Werror"
            ],
            "cppStandard": "c++20"
        }
    ],
    "version": 4
}

Logs from running `C/C++: Log Diagnostics`

-------- Diagnostics - 22/11/2021, 18:22:08
Version: 1.7.1
Current Configuration:
{
    "name": "Win32",
    "includePath": [
        "${workspaceFolder}/**"
    ],
    "defines": [
        "_DEBUG",
        "UNICODE",
        "_UNICODE"
    ],
    "cStandard": "gnu17",
    "intelliSenseMode": "windows-gcc-x64",
    "compilerPath": "C:/msys64/mingw64/bin/g++.exe",
    "compilerArgs": [
        "-Os",
        "-std=c++20",
        "-Wall",
        "-Wconversion",
        "-Werror"
    ],
    "cppStandard": "c++20",
    "compilerPathIsExplicit": true,
    "cStandardIsExplicit": true,
    "cppStandardIsExplicit": true,
    "intelliSenseModeIsExplicit": true,
    "mergeConfigurations": false,
    "browse": {
        "path": [
            "${workspaceFolder}/**"
        ],
        "limitSymbolsToIncludedHeaders": true
    }
}
Translation Unit Mappings:
[ C:\Users\username\Desktop\C++\test.cpp ]:
    C:\USERS\username\DESKTOP\C++\TEST.CPP
Translation Unit Configurations:
[ C:\Users\username\Desktop\C++\test.cpp ]:
    Process ID: 7764
    Memory Usage: 21 MB
    Compiler Path: C:/msys64/mingw64/bin/g++.exe
    Includes:
        C:\MSYS64\MINGW64\INCLUDE\C++\11.2.0
        C:\MSYS64\MINGW64\INCLUDE\C++\11.2.0\X86_64-W64-MINGW32
        C:\MSYS64\MINGW64\INCLUDE\C++\11.2.0\BACKWARD
        C:\MSYS64\MINGW64\LIB\GCC\X86_64-W64-MINGW32\11.2.0\INCLUDE
        C:\MSYS64\MINGW64\INCLUDE
        C:\MSYS64\MINGW64\LIB\GCC\X86_64-W64-MINGW32\11.2.0\INCLUDE-FIXED
        C:\MSYS64\MINGW64\X86_64-W64-MINGW32\INCLUDE
    Defines:
        _DEBUG
        UNICODE
        _UNICODE
    Standard Version: c++20
    IntelliSense Mode: windows-gcc-x64
    Other Flags:
        --g++
        --gnu_version=110200
Total Memory Usage: 21 MB

------- Workspace parsing diagnostics -------
Number of files discovered (not excluded): 3315
Number of files parsed: 16

Logs from the language server logging

cpptools/rescanFolder
Shutting down IntelliSense server: C:\USERS\USERNAME\DESKTOP\C++\TEST.CPP
Discovering files...
  Processing folder (recursive): C:/MSYS64/MINGW64/INCLUDE/
  Processing folder (recursive): C:/MSYS64/MINGW64/LIB/GCC/X86_64-W64-MINGW32/11.2.0/INCLUDE/
  Processing folder (recursive): C:/MSYS64/MINGW64/LIB/GCC/X86_64-W64-MINGW32/11.2.0/INCLUDE-FIXED/
  Processing folder (recursive): C:/MSYS64/MINGW64/X86_64-W64-MINGW32/INCLUDE/
  Processing folder (recursive): C:/USERS/USERNAME/DESKTOP/C++/
  Discovering files: 3315 file(s) processed
  0 file(s) removed from database
Done discovering files.
Parsing open files...
Populate include completion cache.
Parsing remaining files...
Checking for syntax errors: file:///c%3A/Users/username/Desktop/C%2B%2B/test.cpp
Done parsing open files.
sending compilation args for C:\USERS\USERNAME\DESKTOP\C++\TEST.CPP
  include: C:\MSYS64\MINGW64\INCLUDE\C++\11.2.0
  include: C:\MSYS64\MINGW64\INCLUDE\C++\11.2.0\X86_64-W64-MINGW32
  include: C:\MSYS64\MINGW64\INCLUDE\C++\11.2.0\BACKWARD
  include: C:\MSYS64\MINGW64\LIB\GCC\X86_64-W64-MINGW32\11.2.0\INCLUDE
  include: C:\MSYS64\MINGW64\INCLUDE
  include: C:\MSYS64\MINGW64\LIB\GCC\X86_64-W64-MINGW32\11.2.0\INCLUDE-FIXED
  include: C:\MSYS64\MINGW64\X86_64-W64-MINGW32\INCLUDE
  define: __STDC__=1
  define: __cplusplus=202002L
  define: __STDC_UTF_16__=1
  define: __STDC_UTF_32__=1
  define: __STDC_HOSTED__=1
  define: __GNUC__=11
  define: __GNUC_MINOR__=2
  define: __GNUC_PATCHLEVEL__=0
  define: __VERSION__="11.2.0"
  define: __ATOMIC_RELAXED=0
  define: __ATOMIC_SEQ_CST=5
  define: __ATOMIC_ACQUIRE=2
  define: __ATOMIC_RELEASE=3
  define: __ATOMIC_ACQ_REL=4
  define: __ATOMIC_CONSUME=1
  define: __pic__=1
  define: __PIC__=1
  define: __OPTIMIZE_SIZE__=1
  define: __OPTIMIZE__=1
  define: __FINITE_MATH_ONLY__=0
  define: __SIZEOF_INT__=4
  define: __SIZEOF_LONG__=4
  define: __SIZEOF_LONG_LONG__=8
  define: __SIZEOF_SHORT__=2
  define: __SIZEOF_FLOAT__=4
  define: __SIZEOF_DOUBLE__=8
  define: __SIZEOF_LONG_DOUBLE__=16
  define: __SIZEOF_SIZE_T__=8
  define: __CHAR_BIT__=8
  define: __BIGGEST_ALIGNMENT__=16
  define: __ORDER_LITTLE_ENDIAN__=1234
  define: __ORDER_BIG_ENDIAN__=4321
  define: __ORDER_PDP_ENDIAN__=3412
  define: __BYTE_ORDER__=__ORDER_LITTLE_ENDIAN__
  define: __FLOAT_WORD_ORDER__=__ORDER_LITTLE_ENDIAN__
  define: __SIZEOF_POINTER__=8
  define: __GNUC_EXECUTION_CHARSET_NAME="UTF-8"
  define: __GNUC_WIDE_EXECUTION_CHARSET_NAME="UTF-16LE"
  define: __GNUG__=11
  define: __SIZE_TYPE__=long long unsigned int
  define: __PTRDIFF_TYPE__=long long int
  define: __WCHAR_TYPE__=short unsigned int
  define: __WINT_TYPE__=short unsigned int
  define: __INTMAX_TYPE__=long long int
  define: __UINTMAX_TYPE__=long long unsigned int
  define: __CHAR8_TYPE__=unsigned char
  define: __CHAR16_TYPE__=short unsigned int
  define: __CHAR32_TYPE__=unsigned int
  define: __SIG_ATOMIC_TYPE__=int
  define: __INT8_TYPE__=signed char
  define: __INT16_TYPE__=short int
  define: __INT32_TYPE__=int
  define: __INT64_TYPE__=long long int
  define: __UINT8_TYPE__=unsigned char
  define: __UINT16_TYPE__=short unsigned int
  define: __UINT32_TYPE__=unsigned int
  define: __UINT64_TYPE__=long long unsigned int
  define: __INT_LEAST8_TYPE__=signed char
  define: __INT_LEAST16_TYPE__=short int
  define: __INT_LEAST32_TYPE__=int
  define: __INT_LEAST64_TYPE__=long long int
  define: __UINT_LEAST8_TYPE__=unsigned char
  define: __UINT_LEAST16_TYPE__=short unsigned int
  define: __UINT_LEAST32_TYPE__=unsigned int
  define: __UINT_LEAST64_TYPE__=long long unsigned int
  define: __INT_FAST8_TYPE__=signed char
  define: __INT_FAST16_TYPE__=short int
  define: __INT_FAST32_TYPE__=int
  define: __INT_FAST64_TYPE__=long long int
  define: __UINT_FAST8_TYPE__=unsigned char
  define: __UINT_FAST16_TYPE__=short unsigned int
  define: __UINT_FAST32_TYPE__=unsigned int
  define: __UINT_FAST64_TYPE__=long long unsigned int
  define: __INTPTR_TYPE__=long long int
  define: __UINTPTR_TYPE__=long long unsigned int
  define: __GXX_WEAK__=1
  define: __DEPRECATED=1
  define: __GXX_RTTI=1
  define: __GXX_EXPERIMENTAL_CXX0X__=1
  define: __STDCPP_DEFAULT_NEW_ALIGNMENT__=16
  define: __STDCPP_THREADS__=1
  define: __EXCEPTIONS=1
  define: __GXX_ABI_VERSION=1016
  define: __SCHAR_MAX__=0x7f
  define: __SHRT_MAX__=0x7fff
  define: __INT_MAX__=0x7fffffff
  define: __LONG_MAX__=0x7fffffffL
  define: __LONG_LONG_MAX__=0x7fffffffffffffffLL
  define: __WCHAR_MAX__=0xffff
  define: __WCHAR_MIN__=0
  define: __WINT_MAX__=0xffff
  define: __WINT_MIN__=0
  define: __PTRDIFF_MAX__=0x7fffffffffffffffLL
  define: __SIZE_MAX__=0xffffffffffffffffULL
  define: __SCHAR_WIDTH__=8
  define: __SHRT_WIDTH__=16
  define: __INT_WIDTH__=32
  define: __LONG_WIDTH__=32
  define: __LONG_LONG_WIDTH__=64
  define: __WCHAR_WIDTH__=16
  define: __WINT_WIDTH__=16
  define: __PTRDIFF_WIDTH__=64
  define: __SIZE_WIDTH__=64
  define: __INTMAX_MAX__=0x7fffffffffffffffLL
  define: __INTMAX_C(c)=c ## LL
  define: __UINTMAX_MAX__=0xffffffffffffffffULL
  define: __UINTMAX_C(c)=c ## ULL
  define: __INTMAX_WIDTH__=64
  define: __SIG_ATOMIC_MAX__=0x7fffffff
  define: __SIG_ATOMIC_MIN__=(-__SIG_ATOMIC_MAX__ - 1)
  define: __SIG_ATOMIC_WIDTH__=32
  define: __INT8_MAX__=0x7f
  define: __INT16_MAX__=0x7fff
  define: __INT32_MAX__=0x7fffffff
  define: __INT64_MAX__=0x7fffffffffffffffLL
  define: __UINT8_MAX__=0xff
  define: __UINT16_MAX__=0xffff
  define: __UINT32_MAX__=0xffffffffU
  define: __UINT64_MAX__=0xffffffffffffffffULL
  define: __INT_LEAST8_MAX__=0x7f
  define: __INT8_C(c)=c
  define: __INT_LEAST8_WIDTH__=8
  define: __INT_LEAST16_MAX__=0x7fff
  define: __INT16_C(c)=c
  define: __INT_LEAST16_WIDTH__=16
  define: __INT_LEAST32_MAX__=0x7fffffff
  define: __INT32_C(c)=c
  define: __INT_LEAST32_WIDTH__=32
  define: __INT_LEAST64_MAX__=0x7fffffffffffffffLL
  define: __INT64_C(c)=c ## LL
  define: __INT_LEAST64_WIDTH__=64
  define: __UINT_LEAST8_MAX__=0xff
  define: __UINT8_C(c)=c
  define: __UINT_LEAST16_MAX__=0xffff
  define: __UINT16_C(c)=c
  define: __UINT_LEAST32_MAX__=0xffffffffU
  define: __UINT32_C(c)=c ## U
  define: __UINT_LEAST64_MAX__=0xffffffffffffffffULL
  define: __UINT64_C(c)=c ## ULL
  define: __INT_FAST8_MAX__=0x7f
  define: __INT_FAST8_WIDTH__=8
  define: __INT_FAST16_MAX__=0x7fff
  define: __INT_FAST16_WIDTH__=16
  define: __INT_FAST32_MAX__=0x7fffffff
  define: __INT_FAST32_WIDTH__=32
  define: __INT_FAST64_MAX__=0x7fffffffffffffffLL
  define: __INT_FAST64_WIDTH__=64
  define: __UINT_FAST8_MAX__=0xff
  define: __UINT_FAST16_MAX__=0xffff
  define: __UINT_FAST32_MAX__=0xffffffffU
  define: __UINT_FAST64_MAX__=0xffffffffffffffffULL
  define: __INTPTR_MAX__=0x7fffffffffffffffLL
  define: __INTPTR_WIDTH__=64
  define: __UINTPTR_MAX__=0xffffffffffffffffULL
  define: __GCC_IEC_559=2
  define: __GCC_IEC_559_COMPLEX=2
  define: __FLT_EVAL_METHOD__=0
  define: __FLT_EVAL_METHOD_TS_18661_3__=0
  define: __DEC_EVAL_METHOD__=2
  define: __FLT_RADIX__=2
  define: __FLT_MANT_DIG__=24
  define: __FLT_DIG__=6
  define: __FLT_MIN_EXP__=(-125)
  define: __FLT_MIN_10_EXP__=(-37)
  define: __FLT_MAX_EXP__=128
  define: __FLT_MAX_10_EXP__=38
  define: __FLT_DECIMAL_DIG__=9
  define: __FLT_MAX__=3.40282346638528859811704183484516925e+38F
  define: __FLT_NORM_MAX__=3.40282346638528859811704183484516925e+38F
  define: __FLT_MIN__=1.17549435082228750796873653722224568e-38F
  define: __FLT_EPSILON__=1.19209289550781250000000000000000000e-7F
  define: __FLT_DENORM_MIN__=1.40129846432481707092372958328991613e-45F
  define: __FLT_HAS_DENORM__=1
  define: __FLT_HAS_INFINITY__=1
  define: __FLT_HAS_QUIET_NAN__=1
  define: __FLT_IS_IEC_60559__=2
  define: __DBL_MANT_DIG__=53
  define: __DBL_DIG__=15
  define: __DBL_MIN_EXP__=(-1021)
  define: __DBL_MIN_10_EXP__=(-307)
  define: __DBL_MAX_EXP__=1024
  define: __DBL_MAX_10_EXP__=308
  define: __DBL_DECIMAL_DIG__=17
  define: __DBL_MAX__=double(1.79769313486231570814527423731704357e+308L)
  define: __DBL_NORM_MAX__=double(1.79769313486231570814527423731704357e+308L)
  define: __DBL_MIN__=double(2.22507385850720138309023271733240406e-308L)
  define: __DBL_EPSILON__=double(2.22044604925031308084726333618164062e-16L)
  define: __DBL_DENORM_MIN__=double(4.94065645841246544176568792868221372e-324L)
  define: __DBL_HAS_DENORM__=1
  define: __DBL_HAS_INFINITY__=1
  define: __DBL_HAS_QUIET_NAN__=1
  define: __DBL_IS_IEC_60559__=2
  define: __LDBL_MANT_DIG__=64
  define: __LDBL_DIG__=18
  define: __LDBL_MIN_EXP__=(-16381)
  define: __LDBL_MIN_10_EXP__=(-4931)
  define: __LDBL_MAX_EXP__=16384
  define: __LDBL_MAX_10_EXP__=4932
  define: __DECIMAL_DIG__=21
  define: __LDBL_DECIMAL_DIG__=21
  define: __LDBL_MAX__=1.18973149535723176502126385303097021e+4932L
  define: __LDBL_NORM_MAX__=1.18973149535723176502126385303097021e+4932L
  define: __LDBL_MIN__=3.36210314311209350626267781732175260e-4932L
  define: __LDBL_EPSILON__=1.08420217248550443400745280086994171e-19L
  define: __LDBL_DENORM_MIN__=3.64519953188247460252840593361941982e-4951L
  define: __LDBL_HAS_DENORM__=1
  define: __LDBL_HAS_INFINITY__=1
  define: __LDBL_HAS_QUIET_NAN__=1
  define: __LDBL_IS_IEC_60559__=2
  define: __FLT32_MANT_DIG__=24
  define: __FLT32_DIG__=6
  define: __FLT32_MIN_EXP__=(-125)
  define: __FLT32_MIN_10_EXP__=(-37)
  define: __FLT32_MAX_EXP__=128
  define: __FLT32_MAX_10_EXP__=38
  define: __FLT32_DECIMAL_DIG__=9
  define: __FLT32_MAX__=3.40282346638528859811704183484516925e+38F32
  define: __FLT32_NORM_MAX__=3.40282346638528859811704183484516925e+38F32
  define: __FLT32_MIN__=1.17549435082228750796873653722224568e-38F32
  define: __FLT32_EPSILON__=1.19209289550781250000000000000000000e-7F32
  define: __FLT32_DENORM_MIN__=1.40129846432481707092372958328991613e-45F32
  define: __FLT32_HAS_DENORM__=1
  define: __FLT32_HAS_INFINITY__=1
  define: __FLT32_HAS_QUIET_NAN__=1
  define: __FLT32_IS_IEC_60559__=2
  define: __FLT64_MANT_DIG__=53
  define: __FLT64_DIG__=15
  define: __FLT64_MIN_EXP__=(-1021)
  define: __FLT64_MIN_10_EXP__=(-307)
  define: __FLT64_MAX_EXP__=1024
  define: __FLT64_MAX_10_EXP__=308
  define: __FLT64_DECIMAL_DIG__=17
  define: __FLT64_MAX__=1.79769313486231570814527423731704357e+308F64
  define: __FLT64_NORM_MAX__=1.79769313486231570814527423731704357e+308F64
  define: __FLT64_MIN__=2.22507385850720138309023271733240406e-308F64
  define: __FLT64_EPSILON__=2.22044604925031308084726333618164062e-16F64
  define: __FLT64_DENORM_MIN__=4.94065645841246544176568792868221372e-324F64
  define: __FLT64_HAS_DENORM__=1
  define: __FLT64_HAS_INFINITY__=1
  define: __FLT64_HAS_QUIET_NAN__=1
  define: __FLT64_IS_IEC_60559__=2
  define: __FLT128_MANT_DIG__=113
  define: __FLT128_DIG__=33
  define: __FLT128_MIN_EXP__=(-16381)
  define: __FLT128_MIN_10_EXP__=(-4931)
  define: __FLT128_MAX_EXP__=16384
  define: __FLT128_MAX_10_EXP__=4932
  define: __FLT128_DECIMAL_DIG__=36
  define: __FLT128_MAX__=1.18973149535723176508575932662800702e+4932F128
  define: __FLT128_NORM_MAX__=1.18973149535723176508575932662800702e+4932F128
  define: __FLT128_MIN__=3.36210314311209350626267781732175260e-4932F128
  define: __FLT128_EPSILON__=1.92592994438723585305597794258492732e-34F128
  define: __FLT128_DENORM_MIN__=6.47517511943802511092443895822764655e-4966F128
  define: __FLT128_HAS_DENORM__=1
  define: __FLT128_HAS_INFINITY__=1
  define: __FLT128_HAS_QUIET_NAN__=1
  define: __FLT128_IS_IEC_60559__=2
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  define: __FLT32X_DIG__=15
  define: __FLT32X_MIN_EXP__=(-1021)
  define: __FLT32X_MIN_10_EXP__=(-307)
  define: __FLT32X_MAX_EXP__=1024
  define: __FLT32X_MAX_10_EXP__=308
  define: __FLT32X_DECIMAL_DIG__=17
  define: __FLT32X_MAX__=1.79769313486231570814527423731704357e+308F32x
  define: __FLT32X_NORM_MAX__=1.79769313486231570814527423731704357e+308F32x
  define: __FLT32X_MIN__=2.22507385850720138309023271733240406e-308F32x
  define: __FLT32X_EPSILON__=2.22044604925031308084726333618164062e-16F32x
  define: __FLT32X_DENORM_MIN__=4.94065645841246544176568792868221372e-324F32x
  define: __FLT32X_HAS_DENORM__=1
  define: __FLT32X_HAS_INFINITY__=1
  define: __FLT32X_HAS_QUIET_NAN__=1
  define: __FLT32X_IS_IEC_60559__=2
  define: __FLT64X_MANT_DIG__=64
  define: __FLT64X_DIG__=18
  define: __FLT64X_MIN_EXP__=(-16381)
  define: __FLT64X_MIN_10_EXP__=(-4931)
  define: __FLT64X_MAX_EXP__=16384
  define: __FLT64X_MAX_10_EXP__=4932
  define: __FLT64X_DECIMAL_DIG__=21
  define: __FLT64X_MAX__=1.18973149535723176502126385303097021e+4932F64x
  define: __FLT64X_NORM_MAX__=1.18973149535723176502126385303097021e+4932F64x
  define: __FLT64X_MIN__=3.36210314311209350626267781732175260e-4932F64x
  define: __FLT64X_EPSILON__=1.08420217248550443400745280086994171e-19F64x
  define: __FLT64X_DENORM_MIN__=3.64519953188247460252840593361941982e-4951F64x
  define: __FLT64X_HAS_DENORM__=1
  define: __FLT64X_HAS_INFINITY__=1
  define: __FLT64X_HAS_QUIET_NAN__=1
  define: __FLT64X_IS_IEC_60559__=2
  define: __DEC32_MANT_DIG__=7
  define: __DEC32_MIN_EXP__=(-94)
  define: __DEC32_MAX_EXP__=97
  define: __DEC32_MIN__=1E-95DF
  define: __DEC32_MAX__=9.999999E96DF
  define: __DEC32_EPSILON__=1E-6DF
  define: __DEC32_SUBNORMAL_MIN__=0.000001E-95DF
  define: __DEC64_MANT_DIG__=16
  define: __DEC64_MIN_EXP__=(-382)
  define: __DEC64_MAX_EXP__=385
  define: __DEC64_MIN__=1E-383DD
  define: __DEC64_MAX__=9.999999999999999E384DD
  define: __DEC64_EPSILON__=1E-15DD
  define: __DEC64_SUBNORMAL_MIN__=0.000000000000001E-383DD
  define: __DEC128_MANT_DIG__=34
  define: __DEC128_MIN_EXP__=(-6142)
  define: __DEC128_MAX_EXP__=6145
  define: __DEC128_MIN__=1E-6143DL
  define: __DEC128_MAX__=9.999999999999999999999999999999999E6144DL
  define: __DEC128_EPSILON__=1E-33DL
  define: __DEC128_SUBNORMAL_MIN__=0.000000000000000000000000000000001E-6143DL
  define: __REGISTER_PREFIX__=
  define: __USER_LABEL_PREFIX__=
  define: __GNUC_STDC_INLINE__=1
  define: __STRICT_ANSI__=1
  define: __WCHAR_UNSIGNED__=1
  define: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1=1
  define: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2=1
  define: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4=1
  define: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8=1
  define: __GCC_ATOMIC_BOOL_LOCK_FREE=2
  define: __GCC_ATOMIC_CHAR_LOCK_FREE=2
  define: __GCC_ATOMIC_CHAR8_T_LOCK_FREE=2
  define: __GCC_ATOMIC_CHAR16_T_LOCK_FREE=2
  define: __GCC_ATOMIC_CHAR32_T_LOCK_FREE=2
  define: __GCC_ATOMIC_WCHAR_T_LOCK_FREE=2
  define: __GCC_ATOMIC_SHORT_LOCK_FREE=2
  define: __GCC_ATOMIC_INT_LOCK_FREE=2
  define: __GCC_ATOMIC_LONG_LOCK_FREE=2
  define: __GCC_ATOMIC_LLONG_LOCK_FREE=2
  define: __GCC_ATOMIC_TEST_AND_SET_TRUEVAL=1
  define: __GCC_ATOMIC_POINTER_LOCK_FREE=2
  define: __HAVE_SPECULATION_SAFE_VALUE=1
  define: __PRAGMA_REDEFINE_EXTNAME=1
  define: __SIZEOF_INT128__=16
  define: __SIZEOF_WCHAR_T__=2
  define: __SIZEOF_WINT_T__=2
  define: __SIZEOF_PTRDIFF_T__=8
  define: __amd64=1
  define: __amd64__=1
  define: __x86_64=1
  define: __x86_64__=1
  define: __SIZEOF_FLOAT80__=16
  define: __SIZEOF_FLOAT128__=16
  define: __ATOMIC_HLE_ACQUIRE=65536
  define: __ATOMIC_HLE_RELEASE=131072
  define: __GCC_ASM_FLAG_OUTPUTS__=1
  define: __k8=1
  define: __k8__=1
  define: __code_model_medium__=1
  define: __MMX__=1
  define: __SSE__=1
  define: __SSE2__=1
  define: __FXSR__=1
  define: __SSE_MATH__=1
  define: __SSE2_MATH__=1
  define: __MMX_WITH_SSE__=1
  define: __SEG_FS=1
  define: __SEG_GS=1
  define: __SEH__=1
  define: __stdcall=__attribute__((__stdcall__))
  define: __fastcall=__attribute__((__fastcall__))
  define: __thiscall=__attribute__((__thiscall__))
  define: __cdecl=__attribute__((__cdecl__))
  define: __GXX_MERGED_TYPEINFO_NAMES=0
  define: __GXX_TYPEINFO_EQUALITY_INLINE=0
  define: __MSVCRT__=1
  define: __MINGW32__=1
  define: _WIN32=1
  define: __WIN32=1
  define: __WIN32__=1
  define: __WINNT=1
  define: __WINNT__=1
  define: _INTEGRAL_MAX_BITS=64
  define: __MINGW64__=1
  define: __WIN64=1
  define: __WIN64__=1
  define: _WIN64=1
  define: __declspec(x)=__attribute__((x))
  define: __DECIMAL_BID_FORMAT__=1
  define: _REENTRANT=1
  define: _DEBUG
  define: UNICODE
  define: _UNICODE
  other: --g++
  other: --gnu_version=110200
  stdver: c++20
  intelliSenseMode: windows-gcc-x64
Queueing IntelliSense update for files in translation unit of: C:\USERS\USERNAME\DESKTOP\C++\TEST.CPP
  Parsing: 16 files(s) processed
Done parsing remaining files.
cpptools/getCodeActions: file:///c%3A/Users/username/Desktop/C%2B%2B/test.cpp (id: 1478)
cpptools/finishUpdateSquiggles
Error squiggle count: 2
Update IntelliSense time (sec): 0.341
cpptools/getSemanticTokens: file:///c%3A/Users/username/Desktop/C%2B%2B/test.cpp (id: 1479)
cpptools/getFoldingRanges: file:///c%3A/Users/username/Desktop/C%2B%2B/test.cpp (id: 1480)
cpptools/getCodeActions: file:///c%3A/Users/username/Desktop/C%2B%2B/test.cpp (id: 1481)

[sean-mcmanus]

Yeah, I repro the issue, but when I build with the minGW 11.2 g++ I get the same error.

[Dexus0]

standard is set to c++20?

[sean-mcmanus]

Oops, you're right -- it builds after I add the -std=c++20 is added -- I was thinking #7268 had been implemented.

[sean-mcmanus]

It's caused by __has_builtin(__builtin_bit_cast) evaluating to false under IntelliSense. I've filed an internal bug against our parser shared with VS.

[sean-mcmanus]

Actually, it was a one-line fix, so I didn't need to file a bug on the other team (unless there's some unexpected issue with it):

[eypsume]

It's same error on the Fedora 35 with the same ms-vscode-cpptools(1.7.1) version.

my c_cpp_properties.json is:
{
"configurations": [
{
"name": "Linux",
"includePath": [
"${workspaceFolder}/**"
],
"defines": [],
"compilerPath": "/usr/bin/gcc",
"cStandard": "gnu17",
"cppStandard": "c++17",
"intelliSenseMode": "linux-gcc-x64"
}
],
"version": 4
}

problem error: namespace "std" has no member "out" C/C++(135)

[sean-mcmanus]

Fixed with https://github.com/microsoft/vscode-cpptools/releases/edit/1.8.0-insiders

[eypsume]

It's still in 1.8.0

[sean-mcmanus]

@eypsume Can you provide more repro details? I'm seeing the bug as fixed. You may be hitting a different scenario. Are you using c++20? When you run C/C++: Log Diagnostics, what do you see for this info:

    Standard Version: c++20
    IntelliSense Mode: linux-gcc-x64
    Other Flags:
        --g++
        --gnu_version=110200
        --ms_extensions

@Colengms Did you repro the bug with 1.8.0-insiders2?

[Colengms]

@sean-mcmanus With 1.8.0-insiders2, I'm not able to reproduce the issue as described here. @eypsume Can you provide a stand-alone example that repro's with 1.8.0-insiders2, that we could use to investigate further?

[Colengms]

I can repro by switching back to 1.7.1. Since something was definitely fixed related to what is described in this issue, I'm going to re-resolve this as fixed. @eypsume If you are still able to repro an issue, please let us know how to repro. :)