something is very wrong with strings. I have been using them for weeks without issue, but halfway through Monday, I started having strange issues:
[Clang IntelliSense] Error: variable has incomplete type 'std::string'
whenever I try to make a string. similar errors occur when I try wstring and ostringstream, but not stringstream. initializing std::string* salso works fine but s->append(...) results in"member has access into incomplete type 'std::string'"
this all came about because visual studio (VS) was all of a sudden unable to find some#includesthat i have had for weeks, including some standard libraries (don't remember which because...). I solved that by having VS search for the correct files and it found some files (unsure if they're the same as before or different) so it no longer has an issue with the#include statements but now I have this issue.
I had been using <string.h> fine for weeks. while researching this issue, i read that <string.h> is the wrong file to use so I've tried #include <string> but there is no difference. I've since tried<strings.h> and <cstring>but no difference there as well.
I checked out my external dependencies and string.h has dozens of errors, which I thought is weird because it's a standard file that I haven't touched.
I'm using VS2015, GNU make, and I see Clang IntelliSense but I also see some g++ here so i'm not sure what compiler it's actually using. also using visualGDB 5.3. let me know if I forgot anything.
#include <iostream>
#include <string>
#include <sstream>
int main(int argc, char *argv[])
{
std::string message = "uncomment";
...
message
is the part that is highlighted as having an issue (incomplete type)
std::wstring wideMessage;
also incomplete type
expected results: no problems like the past few weeks. i was able to declare, initialize, append(), whatever
actual results: can't compile/debug
errors: variable has incomplete type 'std::string'
variable has incomplete type 'std::wstring'
no matching constructor for initialization of 'std::ostringstream'
I see many similar issues here, but all the issues have to do with forward declaration and I don't see what that has to do with this. I'm not having any issues with classes, structs, or functions; even declaring a variable in main() is problematic
edit: based on this answer, it is likely using VC++ 14.0 as a compiler but I do not know how to tell for sure
edit 2: error message:
1> VisualGDB: Sending 45 updated source files to build machine...
1> VisualGDB: Run "make CONFIG=Debug" in directory "/tmp/VisualGDB/c/Users/pthien/VS/Whatever/Whatever" on pthien@buildserver (SSH)
1> /opt/poky/1.8/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ -march=armv7-a -mfloat-abi=hard -mfpu=neon -mtune=cortex-a8 --sysroot=/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi -ggdb -ffunction-sections -O0 -std=c++11 -march=armv7-a -mfloat-abi=hard -mfpu=neon -mtune=cortex-a8 --sysroot=/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi -ggdb -ffunction-sections -O0 -I/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi/usr/include -I/opt/googletest-master/googletest/include -I/opt/boost_1_61_0 -I../../cereal/cereal-1.2.2/cereal-1.2.2/include -I/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi/usr/websocketpp-master -I/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi/usr/include/websocketpp -I/opt/curl-7.54.0 -I/opt/boost_1_61_0/boost -I/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi/usr/include/easywsclient-master -I/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi/usr/include/uWebSockets-master -I/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi/usr/include/c++/4.9.2/experimental -I/opt/boost_1_61_0/boost/tr1/tr1 -I/opt/boost_1_61_0/tools/build/src/engine -I/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi/usr/include/c++/4.9.2 -I/opt/curl-7.54.0/include -I/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi/usr/include/cereal -I/opt/poky/1.8/sysroots/x86_64-pokysdk-linux/usr/lib/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.9.2/include-fixed -I/opt/boost_1_61_0/boost/compatibility/cpp_c_headers -I"../../../../../Program -IFiles -I(x86)/Microsoft -IVisual -IStudio -I10.0/VC/crt/src" -I"../../../../../Program -IFiles -I(x86)/Microsoft -IVisual -IStudio -I14.0/VC/include" -I/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi/usr/include/c++/4.9.2/arm-poky-linux-gnueabi -DDEBUG -c Whatever.cpp -o Debug/Whatever.o -MD -MF Debug/Whatever.dep
1> C:\Users\pthien\AppData\Local\VisualGDB\RemoteSourceCache\buildserver\0008\include\wchar.h(459,20): note : 'wcstold'
1> extern long double wcstold (const wchar_t *__restrict __nptr,
1> ^
1> Whatever.cpp: In function 'int main(int, char**)':
1>C:\Users\pthien\VS\Whatever\Whatever\Whatever.cpp(138,47): error : 'strlen' was not declared in this scope
1> size_t request_len = strlen(webSocketRequest);
1> ^
1> Makefile:160: recipe for target 'Debug/Whatever.o' failed
1> make: *** [Debug/Whatever.o] Error 1
1> -------------------------------------------------------------
1> Command exited with code 2
1> Executable: make
1> Arguments: CONFIG=Debug
1> Directory: /tmp/VisualGDB/c/Users/pthien/VS/Whatever/Whatever
1>VisualGDB : error : Command-line action failed
1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.MakeFile.Targets(37,5): error MSB3073: The command ""C:\Program Files (x86)\Sysprogs\VisualGDB\\VisualGDB.exe" /build "C:\Users\pthien\VS\Whatever\Whatever\Whatever.vcxproj" "/solution:C:\Users\pthien\VS\Whatever\Whatever.sln" "/config:Debug" "/platform:Win32"" exited with code 1.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
this is about 10% of the output, including the beginning and the end. what's weird is the issue with strlen(). it is not underlined in the IDE so I had no idea there was an issue with it. it makes sense because i commented out the #includefor <string.h>and <cstring> and strlen() is in one of those.
