error: '::memchr' has not been declared

[nlohmann]

Using the release version 8.2.0, the following file cannot be compiled with g++-5 -Ietl-8.2.0/src testetl.cpp -o testetl -std=c++11 using g++-5 (Homebrew gcc5 5.4.0) 5.4.0 on macOS 10.12.1.

#include <vector.h>
#include <string.h>

int main()
{
    return 0;
}

Errors:

In file included from etl-8.2.0/src/ibasic_string.h:39:0,
                 from etl-8.2.0/src/basic_string.h:38,
                 from etl-8.2.0/src/string.h:35,
                 from testetl.cpp:2:
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:75:11: error: '::memchr' has not been declared
   using ::memchr;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:76:11: error: '::memcmp' has not been declared
   using ::memcmp;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:77:11: error: '::memcpy' has not been declared
   using ::memcpy;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:78:11: error: '::memmove' has not been declared
   using ::memmove;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:79:11: error: '::memset' has not been declared
   using ::memset;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:80:11: error: '::strcat' has not been declared
   using ::strcat;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:81:11: error: '::strcmp' has not been declared
   using ::strcmp;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:82:11: error: '::strcoll' has not been declared
   using ::strcoll;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:83:11: error: '::strcpy' has not been declared
   using ::strcpy;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:84:11: error: '::strcspn' has not been declared
   using ::strcspn;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:85:11: error: '::strerror' has not been declared
   using ::strerror;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:86:11: error: '::strlen' has not been declared
   using ::strlen;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:87:11: error: '::strncat' has not been declared
   using ::strncat;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:88:11: error: '::strncmp' has not been declared
   using ::strncmp;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:89:11: error: '::strncpy' has not been declared
   using ::strncpy;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:90:11: error: '::strspn' has not been declared
   using ::strspn;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:91:11: error: '::strtok' has not been declared
   using ::strtok;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:92:11: error: '::strxfrm' has not been declared
   using ::strxfrm;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:93:11: error: '::strchr' has not been declared
   using ::strchr;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:94:11: error: '::strpbrk' has not been declared
   using ::strpbrk;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:95:11: error: '::strrchr' has not been declared
   using ::strrchr;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:96:11: error: '::strstr' has not been declared
   using ::strstr;
           ^

The same errors occur with GCC 4.9.3 and GCC 6.2.0 with the same compiler flags.

[jwellbelove]

It may be that the compiler is picking up ETL's string.h instead of the C library's version. You may have to play around with the include directory paths. I think it can happen if you set the include path directly to etl/src/ If you set the path to the one containing the ETL library then you can #include "etl/src/..." Hope that helps.

[nlohmann]

Sorry, I don't get it to work.

I tried

#include "etl-8.2.0/src/vector.h"
#include "etl-8.2.0/src/string.h"

int main()
{
    return 0;
}

and ran g++-5 testetl.cpp -o testetl -std=c++11 (the file testetl.cpp is in a directory that contains the release directory etl-8.2.0). The error message is

In file included from etl-8.2.0/src/ivector.h:904:0,
                 from etl-8.2.0/src/vector.h:38,
                 from testetl.cpp:1:
etl-8.2.0/src/private/ivectorpointer.h:38:33: fatal error: private/pvoidvector.h: No such file or directory
compilation terminated.

When I add -I etl-8.2.0/src to resolve private/pvoidvector.h, I get

In file included from etl-8.2.0/src/ibasic_string.h:39:0,
                 from etl-8.2.0/src/basic_string.h:38,
                 from etl-8.2.0/src/string.h:35,
                 from testetl.cpp:2:
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:75:11: error: '::memchr' has not been declared
   using ::memchr;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:76:11: error: '::memcmp' has not been declared
   using ::memcmp;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:77:11: error: '::memcpy' has not been declared
   using ::memcpy;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:78:11: error: '::memmove' has not been declared
   using ::memmove;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:79:11: error: '::memset' has not been declared
   using ::memset;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:80:11: error: '::strcat' has not been declared
   using ::strcat;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:81:11: error: '::strcmp' has not been declared
   using ::strcmp;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:82:11: error: '::strcoll' has not been declared
   using ::strcoll;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:83:11: error: '::strcpy' has not been declared
   using ::strcpy;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:84:11: error: '::strcspn' has not been declared
   using ::strcspn;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:85:11: error: '::strerro' has not been declared
   using ::strerror;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:86:11: error: '::strlen' has not been declared
   using ::strlen;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:87:11: error: '::strncat' has not been declared
   using ::strncat;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:88:11: error: '::strncmp' has not been declared
   using ::strncmp;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:89:11: error: '::strncpy' has not been declared
   using ::strncpy;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:90:11: error: '::strspn' has not been declared
   using ::strspn;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:91:11: error: '::strtok' has not been declared
   using ::strtok;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:92:11: error: '::strxfrm' has not been declared
   using ::strxfrm;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:93:11: error: '::strchr' has not been declared
   using ::strchr;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:94:11: error: '::strpbrk' has not been declared
   using ::strpbrk;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:95:11: error: '::strrchr' has not been declared
   using ::strrchr;
           ^
/usr/local/Cellar/gcc5/5.4.0/include/c++/5.4.0/cstring:96:11: error: '::strstr' has not been declared
   using ::strstr;
           ^

[jwellbelove]

Hi Niel,

Sorry to hear you're still having issues.

private/pvoidvector.h is an error. It should be just pvoidvector.h

I've updated the file in the master branch

As for the other errors, could you try changing the cstring include in the classes to string.h and see if it makes a difference?

John.

[jwellbelove]

I've changed the name of string.h to cstring.h which seems to solve the issues you are seeing. The code is on theme master branch.

[IAMFINN]

same question,Do you fixed?

[jwellbelove]

It is fixed as far as I know