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MisterEwok

Member

Registered: 2013-08-28

Posts: 38

g++ isn't compiling!

So, I noticed this yesterday, thinking it was application specific. Now I've tried compiling with multiple pieces of code that I've written, all of which compiled successfully at most a week ago. The following paste is from an attempt on a simple example (so as to minimize the amount to paste). I don't know what I did to cause this. Any ideas?

g++  -c main.cpp
In file included from main.cpp:1:0:
/usr/include/c++/4.8.1/cstdlib:118:11: error: ‘::div_t’ has not been declared
   using ::div_t;
           ^
/usr/include/c++/4.8.1/cstdlib:119:11: error: ‘::ldiv_t’ has not been declared
   using ::ldiv_t;
           ^
/usr/include/c++/4.8.1/cstdlib:121:11: error: ‘::abort’ has not been declared
   using ::abort;
           ^
/usr/include/c++/4.8.1/cstdlib:122:11: error: ‘::abs’ has not been declared
   using ::abs;
           ^
/usr/include/c++/4.8.1/cstdlib:123:11: error: ‘::atexit’ has not been declared
   using ::atexit;
           ^
/usr/include/c++/4.8.1/cstdlib:129:11: error: ‘::atof’ has not been declared
   using ::atof;
           ^
/usr/include/c++/4.8.1/cstdlib:130:11: error: ‘::atoi’ has not been declared
   using ::atoi;
           ^
/usr/include/c++/4.8.1/cstdlib:131:11: error: ‘::atol’ has not been declared
   using ::atol;
           ^
/usr/include/c++/4.8.1/cstdlib:132:11: error: ‘::bsearch’ has not been declared
   using ::bsearch;
           ^
/usr/include/c++/4.8.1/cstdlib:133:11: error: ‘::calloc’ has not been declared
   using ::calloc;
           ^
/usr/include/c++/4.8.1/cstdlib:134:11: error: ‘::div’ has not been declared
   using ::div;
           ^
/usr/include/c++/4.8.1/cstdlib:135:11: error: ‘::exit’ has not been declared
   using ::exit;
           ^
/usr/include/c++/4.8.1/cstdlib:136:11: error: ‘::free’ has not been declared
   using ::free;
           ^
/usr/include/c++/4.8.1/cstdlib:137:11: error: ‘::getenv’ has not been declared
   using ::getenv;
           ^
/usr/include/c++/4.8.1/cstdlib:138:11: error: ‘::labs’ has not been declared
   using ::labs;
           ^
/usr/include/c++/4.8.1/cstdlib:139:11: error: ‘::ldiv’ has not been declared
   using ::ldiv;
           ^
/usr/include/c++/4.8.1/cstdlib:140:11: error: ‘::malloc’ has not been declared
   using ::malloc;
           ^
/usr/include/c++/4.8.1/cstdlib:142:11: error: ‘::mblen’ has not been declared
   using ::mblen;
           ^
/usr/include/c++/4.8.1/cstdlib:143:11: error: ‘::mbstowcs’ has not been declared
   using ::mbstowcs;
           ^
/usr/include/c++/4.8.1/cstdlib:144:11: error: ‘::mbtowc’ has not been declared
   using ::mbtowc;
           ^
/usr/include/c++/4.8.1/cstdlib:146:11: error: ‘::qsort’ has not been declared
   using ::qsort;
           ^
/usr/include/c++/4.8.1/cstdlib:152:11: error: ‘::rand’ has not been declared
   using ::rand;
           ^
/usr/include/c++/4.8.1/cstdlib:153:11: error: ‘::realloc’ has not been declared
   using ::realloc;
           ^
/usr/include/c++/4.8.1/cstdlib:154:11: error: ‘::srand’ has not been declared
   using ::srand;
           ^
/usr/include/c++/4.8.1/cstdlib:155:11: error: ‘::strtod’ has not been declared
   using ::strtod;
           ^
/usr/include/c++/4.8.1/cstdlib:156:11: error: ‘::strtol’ has not been declared
   using ::strtol;
           ^
/usr/include/c++/4.8.1/cstdlib:157:11: error: ‘::strtoul’ has not been declared
   using ::strtoul;
           ^
/usr/include/c++/4.8.1/cstdlib:158:11: error: ‘::system’ has not been declared
   using ::system;
           ^
/usr/include/c++/4.8.1/cstdlib:160:11: error: ‘::wcstombs’ has not been declared
   using ::wcstombs;
           ^
/usr/include/c++/4.8.1/cstdlib:161:11: error: ‘::wctomb’ has not been declared
   using ::wctomb;
           ^
/usr/include/c++/4.8.1/cstdlib:168:10: error: ‘ldiv_t’ does not name a type
   inline ldiv_t
          ^
/usr/include/c++/4.8.1/cstdlib:201:11: error: ‘::lldiv_t’ has not been declared
   using ::lldiv_t;
           ^
/usr/include/c++/4.8.1/cstdlib:207:11: error: ‘::_Exit’ has not been declared
   using ::_Exit;
           ^
/usr/include/c++/4.8.1/cstdlib:211:11: error: ‘::llabs’ has not been declared
   using ::llabs;
           ^
/usr/include/c++/4.8.1/cstdlib:213:10: error: ‘lldiv_t’ does not name a type
   inline lldiv_t
          ^
/usr/include/c++/4.8.1/cstdlib:217:11: error: ‘::lldiv’ has not been declared
   using ::lldiv;
           ^
/usr/include/c++/4.8.1/cstdlib:228:11: error: ‘::atoll’ has not been declared
   using ::atoll;
           ^
/usr/include/c++/4.8.1/cstdlib:229:11: error: ‘::strtoll’ has not been declared
   using ::strtoll;
           ^
/usr/include/c++/4.8.1/cstdlib:230:11: error: ‘::strtoull’ has not been declared
   using ::strtoull;
           ^
/usr/include/c++/4.8.1/cstdlib:232:11: error: ‘::strtof’ has not been declared
   using ::strtof;
           ^
/usr/include/c++/4.8.1/cstdlib:233:11: error: ‘::strtold’ has not been declared
   using ::strtold;
           ^
/usr/include/c++/4.8.1/cstdlib:241:22: error: ‘__gnu_cxx::lldiv_t’ has not been declared
   using ::__gnu_cxx::lldiv_t;
                      ^
/usr/include/c++/4.8.1/cstdlib:243:22: error: ‘__gnu_cxx::_Exit’ has not been declared
   using ::__gnu_cxx::_Exit;
                      ^
/usr/include/c++/4.8.1/cstdlib:245:22: error: ‘__gnu_cxx::llabs’ has not been declared
   using ::__gnu_cxx::llabs;
                      ^
/usr/include/c++/4.8.1/cstdlib:246:22: error: ‘__gnu_cxx::div’ has not been declared
   using ::__gnu_cxx::div;
                      ^
/usr/include/c++/4.8.1/cstdlib:247:22: error: ‘__gnu_cxx::lldiv’ has not been declared
   using ::__gnu_cxx::lldiv;
                      ^
/usr/include/c++/4.8.1/cstdlib:249:22: error: ‘__gnu_cxx::atoll’ has not been declared
   using ::__gnu_cxx::atoll;
                      ^
/usr/include/c++/4.8.1/cstdlib:250:22: error: ‘__gnu_cxx::strtof’ has not been declared
   using ::__gnu_cxx::strtof;
                      ^
/usr/include/c++/4.8.1/cstdlib:251:22: error: ‘__gnu_cxx::strtoll’ has not been declared
   using ::__gnu_cxx::strtoll;
                      ^
/usr/include/c++/4.8.1/cstdlib:252:22: error: ‘__gnu_cxx::strtoull’ has not been declared
   using ::__gnu_cxx::strtoull;
                      ^
/usr/include/c++/4.8.1/cstdlib:253:22: error: ‘__gnu_cxx::strtold’ has not been declared
   using ::__gnu_cxx::strtold;
                      ^
In file included from main.cpp:2:0:
/usr/include/c++/4.8.1/cstdio:95:11: error: ‘::FILE’ has not been declared
   using ::FILE;
           ^
/usr/include/c++/4.8.1/cstdio:96:11: error: ‘::fpos_t’ has not been declared
   using ::fpos_t;
           ^
/usr/include/c++/4.8.1/cstdio:98:11: error: ‘::clearerr’ has not been declared
   using ::clearerr;
           ^
/usr/include/c++/4.8.1/cstdio:99:11: error: ‘::fclose’ has not been declared
   using ::fclose;
           ^
/usr/include/c++/4.8.1/cstdio:100:11: error: ‘::feof’ has not been declared
   using ::feof;
           ^
/usr/include/c++/4.8.1/cstdio:101:11: error: ‘::ferror’ has not been declared
   using ::ferror;
           ^
/usr/include/c++/4.8.1/cstdio:102:11: error: ‘::fflush’ has not been declared
   using ::fflush;
           ^
/usr/include/c++/4.8.1/cstdio:103:11: error: ‘::fgetc’ has not been declared
   using ::fgetc;
           ^
/usr/include/c++/4.8.1/cstdio:104:11: error: ‘::fgetpos’ has not been declared
   using ::fgetpos;
           ^
/usr/include/c++/4.8.1/cstdio:105:11: error: ‘::fgets’ has not been declared
   using ::fgets;
           ^
/usr/include/c++/4.8.1/cstdio:106:11: error: ‘::fopen’ has not been declared
   using ::fopen;
           ^
/usr/include/c++/4.8.1/cstdio:107:11: error: ‘::fprintf’ has not been declared
   using ::fprintf;
           ^
/usr/include/c++/4.8.1/cstdio:108:11: error: ‘::fputc’ has not been declared
   using ::fputc;
           ^
/usr/include/c++/4.8.1/cstdio:109:11: error: ‘::fputs’ has not been declared
   using ::fputs;
           ^
/usr/include/c++/4.8.1/cstdio:110:11: error: ‘::fread’ has not been declared
   using ::fread;
           ^
/usr/include/c++/4.8.1/cstdio:111:11: error: ‘::freopen’ has not been declared
   using ::freopen;
           ^
/usr/include/c++/4.8.1/cstdio:112:11: error: ‘::fscanf’ has not been declared
   using ::fscanf;
           ^
/usr/include/c++/4.8.1/cstdio:113:11: error: ‘::fseek’ has not been declared
   using ::fseek;
           ^
/usr/include/c++/4.8.1/cstdio:114:11: error: ‘::fsetpos’ has not been declared
   using ::fsetpos;
           ^
/usr/include/c++/4.8.1/cstdio:115:11: error: ‘::ftell’ has not been declared
   using ::ftell;
           ^
/usr/include/c++/4.8.1/cstdio:116:11: error: ‘::fwrite’ has not been declared
   using ::fwrite;
           ^
/usr/include/c++/4.8.1/cstdio:117:11: error: ‘::getc’ has not been declared
   using ::getc;
           ^
/usr/include/c++/4.8.1/cstdio:118:11: error: ‘::getchar’ has not been declared
   using ::getchar;
           ^
/usr/include/c++/4.8.1/cstdio:119:11: error: ‘::gets’ has not been declared
   using ::gets;
           ^
/usr/include/c++/4.8.1/cstdio:120:11: error: ‘::perror’ has not been declared
   using ::perror;
           ^
/usr/include/c++/4.8.1/cstdio:121:11: error: ‘::printf’ has not been declared
   using ::printf;
           ^
/usr/include/c++/4.8.1/cstdio:122:11: error: ‘::putc’ has not been declared
   using ::putc;
           ^
/usr/include/c++/4.8.1/cstdio:123:11: error: ‘::putchar’ has not been declared
   using ::putchar;
           ^
/usr/include/c++/4.8.1/cstdio:124:11: error: ‘::puts’ has not been declared
   using ::puts;
           ^
/usr/include/c++/4.8.1/cstdio:125:11: error: ‘::remove’ has not been declared
   using ::remove;
           ^
/usr/include/c++/4.8.1/cstdio:126:11: error: ‘::rename’ has not been declared
   using ::rename;
           ^
/usr/include/c++/4.8.1/cstdio:127:11: error: ‘::rewind’ has not been declared
   using ::rewind;
           ^
/usr/include/c++/4.8.1/cstdio:128:11: error: ‘::scanf’ has not been declared
   using ::scanf;
           ^
/usr/include/c++/4.8.1/cstdio:129:11: error: ‘::setbuf’ has not been declared
   using ::setbuf;
           ^
/usr/include/c++/4.8.1/cstdio:130:11: error: ‘::setvbuf’ has not been declared
   using ::setvbuf;
           ^
/usr/include/c++/4.8.1/cstdio:131:11: error: ‘::sprintf’ has not been declared
   using ::sprintf;
           ^
/usr/include/c++/4.8.1/cstdio:132:11: error: ‘::sscanf’ has not been declared
   using ::sscanf;
           ^
/usr/include/c++/4.8.1/cstdio:133:11: error: ‘::tmpfile’ has not been declared
   using ::tmpfile;
           ^
/usr/include/c++/4.8.1/cstdio:134:11: error: ‘::tmpnam’ has not been declared
   using ::tmpnam;
           ^
/usr/include/c++/4.8.1/cstdio:135:11: error: ‘::ungetc’ has not been declared
   using ::ungetc;
           ^
/usr/include/c++/4.8.1/cstdio:136:11: error: ‘::vfprintf’ has not been declared
   using ::vfprintf;
           ^
/usr/include/c++/4.8.1/cstdio:137:11: error: ‘::vprintf’ has not been declared
   using ::vprintf;
           ^
/usr/include/c++/4.8.1/cstdio:138:11: error: ‘::vsprintf’ has not been declared
   using ::vsprintf;
           ^
/usr/include/c++/4.8.1/cstdio:167:11: error: ‘::snprintf’ has not been declared
   using ::snprintf;
           ^
/usr/include/c++/4.8.1/cstdio:168:11: error: ‘::vfscanf’ has not been declared
   using ::vfscanf;
           ^
/usr/include/c++/4.8.1/cstdio:169:11: error: ‘::vscanf’ has not been declared
   using ::vscanf;
           ^
/usr/include/c++/4.8.1/cstdio:170:11: error: ‘::vsnprintf’ has not been declared
   using ::vsnprintf;
           ^
/usr/include/c++/4.8.1/cstdio:171:11: error: ‘::vsscanf’ has not been declared
   using ::vsscanf;
           ^
/usr/include/c++/4.8.1/cstdio:177:22: error: ‘__gnu_cxx::snprintf’ has not been declared
   using ::__gnu_cxx::snprintf;
                      ^
/usr/include/c++/4.8.1/cstdio:178:22: error: ‘__gnu_cxx::vfscanf’ has not been declared
   using ::__gnu_cxx::vfscanf;
                      ^
/usr/include/c++/4.8.1/cstdio:179:22: error: ‘__gnu_cxx::vscanf’ has not been declared
   using ::__gnu_cxx::vscanf;
                      ^
/usr/include/c++/4.8.1/cstdio:180:22: error: ‘__gnu_cxx::vsnprintf’ has not been declared
   using ::__gnu_cxx::vsnprintf;
                      ^
/usr/include/c++/4.8.1/cstdio:181:22: error: ‘__gnu_cxx::vsscanf’ has not been declared
   using ::__gnu_cxx::vsscanf;
                      ^
main.cpp: In function ‘int main(int, char**)’:
main.cpp:12:22: error: ‘printf’ was not declared in this scope
     printf("\nUsage:");
                      ^
main.cpp:14:11: error: ‘exit’ was not declared in this scope
     exit(0);
           ^

Last edited by MisterEwok (2013-08-29 10:15:07)

MisterEwok

Member

Registered: 2013-08-28

Posts: 38

Re: g++ isn't compiling!

I've already tried force removing and reinstalling gcc and gcc-libs, with no change.

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,456

Website

Re: g++ isn't compiling!

Is gcc also not compiling?  If gcc works on a c file, you should probably change the title to specify g++ as all the issues are c++ lib related.

---

"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

at0m5k

Member

Registered: 2013-07-22

Posts: 40

Website

Re: g++ isn't compiling!

These look like linking errors. Make sure that all of your headers are defined explicitly (just to be sure). Then make sure that you are using the std namespace i.e using namespace std;.

---

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MisterEwok

Member

Registered: 2013-08-28

Posts: 38

Re: g++ isn't compiling!

@Trilby: compiling and linking work with a simple .c program so I changed the title

@at0m5k: The -c flag means I'm only trying to compile in the above paste.

MisterEwok

Member

Registered: 2013-08-28

Posts: 38

Re: g++ isn't compiling!

Like I said, I have never had this problem until two days ago.

When I change the includes to

#include <stdlib.h>
#include <stdio.h>

instead of

#include <cstdlib>
#include <cstdio>

as I originally had it, I get this:

g++ -c main.cpp
main.cpp: In function ‘int main(int, char**)’:
main.cpp:12:22: error: ‘printf’ was not declared in this scope
     printf("\nUsage:");
                      ^
main.cpp:14:11: error: ‘exit’ was not declared in this scope
     exit(0);
           ^

And these lines are also at the end of the first paste.

Allan

Pacman

From: Brisbane, AU

Registered: 2007-06-09

Posts: 11,656

Website

Re: g++ isn't compiling!

Show us the code...

---

PGP Key: F99FFE0FEAE999BD | I develop pacman - buy me a drink!

MisterEwok

Member

Registered: 2013-08-28

Posts: 38

Re: g++ isn't compiling!

#include <stdlib.h>
#include <stdio.h>
#include "matrixOps.h"

using namespace std;

int main(int argsc, char* Args[])
{
  /* Check for correct number of arguments (output file not required; defaults to "RESULT.mat") */
  if (argsc < 3)
  {
    printf("\nUsage:");
    printf("\nMultMatrices first_matrix_file second_matrix_file output_file(optional)\n\n");
    exit(0);
  }
  
  //declare variables (three matrices and their respective dimensions)
  double **A, **B, **C;
  int Arows, Acols, Brows, Bcols, Crows, Ccols;
  
  //Populate Matrices A and B from first two file arguments
  readMatrix(Args[1],A,Arows,Acols);
  readMatrix(Args[2],B,Brows,Bcols);
  
  //Populate Matrix C by multiplying A and B
  mat_mat_multiply(A,Arows,Acols,B,Brows,Bcols,C,Crows,Ccols);
  
  //Write the resultant C matrix to the third file argument
  writeMatrix(Args[3],C,Crows,Ccols);

  return 0;
}

WorMzy

Administrator

From: Scotland

Registered: 2010-06-16

Posts: 13,373

Website

Re: g++ isn't compiling!

Could you check that your filesystem isn't corrupted by checking the filetype and size of the include files. e.g.

$ file /usr/include/c++/4.8.1/cstdio
/usr/include/c++/4.8.1/cstdio: C source, ASCII text

$ du /usr/include/c++/4.8.1/cstdio 
8       /usr/include/c++/4.8.1/cstdio

---

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Making lemonade from lemons since 2015.

Allan

Pacman

From: Brisbane, AU

Registered: 2007-06-09

Posts: 11,656

Website

Re: g++ isn't compiling!

#include <stdlib.h>
#include <stdio.h>

Use cstdlib.h instead of stdlib.h ,etc

---

PGP Key: F99FFE0FEAE999BD | I develop pacman - buy me a drink!

MisterEwok

Member

Registered: 2013-08-28

Posts: 38

Re: g++ isn't compiling!

@Allan:

 g++ -c main.cpp
main.cpp:1:21: fatal error: cstdlib.h: No such file or directory
 #include <cstdlib.h>
                     ^
compilation terminated.

@WorMsy

$ file /usr/include/c++/4.8.1/cstdio
/usr/include/c++/4.8.1/cstdio: C source, ASCII text
$ du /usr/include/c++/4.8.1/cstdio
8	/usr/include/c++/4.8.1/cstdio

Allan

Pacman

From: Brisbane, AU

Registered: 2007-06-09

Posts: 11,656

Website

Re: g++ isn't compiling!

I should have said "#include <cstdlib>"

---

PGP Key: F99FFE0FEAE999BD | I develop pacman - buy me a drink!

MisterEwok

Member

Registered: 2013-08-28

Posts: 38

Re: g++ isn't compiling!

@Allan: That's what I had in the first place; see original post.

Allan

Pacman

From: Brisbane, AU

Registered: 2007-06-09

Posts: 11,656

Website

Re: g++ isn't compiling!

Can you give us a more minimal example without a mystery header so we can actually try compiling it ourselves?

---

PGP Key: F99FFE0FEAE999BD | I develop pacman - buy me a drink!

Allan

Pacman

From: Brisbane, AU

Registered: 2007-06-09

Posts: 11,656

Website

Re: g++ isn't compiling!

Also run "pacman -Qkk" on gcc and glibc to check all files are fine.

---

PGP Key: F99FFE0FEAE999BD | I develop pacman - buy me a drink!

MisterEwok

Member

Registered: 2013-08-28

Posts: 38

Re: g++ isn't compiling!

Here's a hello code:

#include <cstdio>

using namespace std;

int main ()
{
  printf("\nHello world!\n\n");
  
  return 0;
}

Compiling gives:

$ g++ -c hello.cpp 
In file included from hello.cpp:1:0:
/usr/include/c++/4.8.1/cstdio:95:11: error: ‘::FILE’ has not been declared
   using ::FILE;
           ^
/usr/include/c++/4.8.1/cstdio:96:11: error: ‘::fpos_t’ has not been declared
   using ::fpos_t;
           ^
/usr/include/c++/4.8.1/cstdio:98:11: error: ‘::clearerr’ has not been declared
   using ::clearerr;
           ^
/usr/include/c++/4.8.1/cstdio:99:11: error: ‘::fclose’ has not been declared
   using ::fclose;
           ^
/usr/include/c++/4.8.1/cstdio:100:11: error: ‘::feof’ has not been declared
   using ::feof;
           ^
/usr/include/c++/4.8.1/cstdio:101:11: error: ‘::ferror’ has not been declared
   using ::ferror;
           ^
/usr/include/c++/4.8.1/cstdio:102:11: error: ‘::fflush’ has not been declared
   using ::fflush;
           ^
/usr/include/c++/4.8.1/cstdio:103:11: error: ‘::fgetc’ has not been declared
   using ::fgetc;
           ^
/usr/include/c++/4.8.1/cstdio:104:11: error: ‘::fgetpos’ has not been declared
   using ::fgetpos;
           ^
/usr/include/c++/4.8.1/cstdio:105:11: error: ‘::fgets’ has not been declared
   using ::fgets;
           ^
/usr/include/c++/4.8.1/cstdio:106:11: error: ‘::fopen’ has not been declared
   using ::fopen;
           ^
/usr/include/c++/4.8.1/cstdio:107:11: error: ‘::fprintf’ has not been declared
   using ::fprintf;
           ^
/usr/include/c++/4.8.1/cstdio:108:11: error: ‘::fputc’ has not been declared
   using ::fputc;
           ^
/usr/include/c++/4.8.1/cstdio:109:11: error: ‘::fputs’ has not been declared
   using ::fputs;
           ^
/usr/include/c++/4.8.1/cstdio:110:11: error: ‘::fread’ has not been declared
   using ::fread;
           ^
/usr/include/c++/4.8.1/cstdio:111:11: error: ‘::freopen’ has not been declared
   using ::freopen;
           ^
/usr/include/c++/4.8.1/cstdio:112:11: error: ‘::fscanf’ has not been declared
   using ::fscanf;
           ^
/usr/include/c++/4.8.1/cstdio:113:11: error: ‘::fseek’ has not been declared
   using ::fseek;
           ^
/usr/include/c++/4.8.1/cstdio:114:11: error: ‘::fsetpos’ has not been declared
   using ::fsetpos;
           ^
/usr/include/c++/4.8.1/cstdio:115:11: error: ‘::ftell’ has not been declared
   using ::ftell;
           ^
/usr/include/c++/4.8.1/cstdio:116:11: error: ‘::fwrite’ has not been declared
   using ::fwrite;
           ^
/usr/include/c++/4.8.1/cstdio:117:11: error: ‘::getc’ has not been declared
   using ::getc;
           ^
/usr/include/c++/4.8.1/cstdio:118:11: error: ‘::getchar’ has not been declared
   using ::getchar;
           ^
/usr/include/c++/4.8.1/cstdio:119:11: error: ‘::gets’ has not been declared
   using ::gets;
           ^
/usr/include/c++/4.8.1/cstdio:120:11: error: ‘::perror’ has not been declared
   using ::perror;
           ^
/usr/include/c++/4.8.1/cstdio:121:11: error: ‘::printf’ has not been declared
   using ::printf;
           ^
/usr/include/c++/4.8.1/cstdio:122:11: error: ‘::putc’ has not been declared
   using ::putc;
           ^
/usr/include/c++/4.8.1/cstdio:123:11: error: ‘::putchar’ has not been declared
   using ::putchar;
           ^
/usr/include/c++/4.8.1/cstdio:124:11: error: ‘::puts’ has not been declared
   using ::puts;
           ^
/usr/include/c++/4.8.1/cstdio:125:11: error: ‘::remove’ has not been declared
   using ::remove;
           ^
/usr/include/c++/4.8.1/cstdio:126:11: error: ‘::rename’ has not been declared
   using ::rename;
           ^
/usr/include/c++/4.8.1/cstdio:127:11: error: ‘::rewind’ has not been declared
   using ::rewind;
           ^
/usr/include/c++/4.8.1/cstdio:128:11: error: ‘::scanf’ has not been declared
   using ::scanf;
           ^
/usr/include/c++/4.8.1/cstdio:129:11: error: ‘::setbuf’ has not been declared
   using ::setbuf;
           ^
/usr/include/c++/4.8.1/cstdio:130:11: error: ‘::setvbuf’ has not been declared
   using ::setvbuf;
           ^
/usr/include/c++/4.8.1/cstdio:131:11: error: ‘::sprintf’ has not been declared
   using ::sprintf;
           ^
/usr/include/c++/4.8.1/cstdio:132:11: error: ‘::sscanf’ has not been declared
   using ::sscanf;
           ^
/usr/include/c++/4.8.1/cstdio:133:11: error: ‘::tmpfile’ has not been declared
   using ::tmpfile;
           ^
/usr/include/c++/4.8.1/cstdio:134:11: error: ‘::tmpnam’ has not been declared
   using ::tmpnam;
           ^
/usr/include/c++/4.8.1/cstdio:135:11: error: ‘::ungetc’ has not been declared
   using ::ungetc;
           ^
/usr/include/c++/4.8.1/cstdio:136:11: error: ‘::vfprintf’ has not been declared
   using ::vfprintf;
           ^
/usr/include/c++/4.8.1/cstdio:137:11: error: ‘::vprintf’ has not been declared
   using ::vprintf;
           ^
/usr/include/c++/4.8.1/cstdio:138:11: error: ‘::vsprintf’ has not been declared
   using ::vsprintf;
           ^
/usr/include/c++/4.8.1/cstdio:167:11: error: ‘::snprintf’ has not been declared
   using ::snprintf;
           ^
/usr/include/c++/4.8.1/cstdio:168:11: error: ‘::vfscanf’ has not been declared
   using ::vfscanf;
           ^
/usr/include/c++/4.8.1/cstdio:169:11: error: ‘::vscanf’ has not been declared
   using ::vscanf;
           ^
/usr/include/c++/4.8.1/cstdio:170:11: error: ‘::vsnprintf’ has not been declared
   using ::vsnprintf;
           ^
/usr/include/c++/4.8.1/cstdio:171:11: error: ‘::vsscanf’ has not been declared
   using ::vsscanf;
           ^
/usr/include/c++/4.8.1/cstdio:177:22: error: ‘__gnu_cxx::snprintf’ has not been declared
   using ::__gnu_cxx::snprintf;
                      ^
/usr/include/c++/4.8.1/cstdio:178:22: error: ‘__gnu_cxx::vfscanf’ has not been declared
   using ::__gnu_cxx::vfscanf;
                      ^
/usr/include/c++/4.8.1/cstdio:179:22: error: ‘__gnu_cxx::vscanf’ has not been declared
   using ::__gnu_cxx::vscanf;
                      ^
/usr/include/c++/4.8.1/cstdio:180:22: error: ‘__gnu_cxx::vsnprintf’ has not been declared
   using ::__gnu_cxx::vsnprintf;
                      ^
/usr/include/c++/4.8.1/cstdio:181:22: error: ‘__gnu_cxx::vsscanf’ has not been declared
   using ::__gnu_cxx::vsscanf;
                      ^
hello.cpp: In function ‘int main()’:
hello.cpp:7:30: error: ‘printf’ was not declared in this scope
   printf("\nHello world!\n\n");
                              ^

MisterEwok

Member

Registered: 2013-08-28

Posts: 38

Re: g++ isn't compiling!

$ pacman -Qkk gcc glibc
gcc: 1938 total files, 0 altered files
warning: glibc: /etc/gai.conf (Modification time mismatch)
warning: glibc: /etc/locale.gen (Modification time mismatch)
warning: glibc: /etc/locale.gen (Size mismatch)
warning: glibc: /etc/nscd.conf (Modification time mismatch)
glibc: 1503 total files, 3 altered files

derhamster

Member

Registered: 2012-07-08

Posts: 86

Re: g++ isn't compiling!

Compile the code in verbose mode:

g++ -v main.cpp

and post the output. Might be worth looking at the default include directories.

Also, did you try compiling the code with clang?

Edit, with more ideas:
You can generate a list of defined preprocessor macros with:

g++ -dM -E - < /dev/null

Its quite long, but someone might still spot some missing or incorrectly defined macros in there.

Do you have any environment variables defined, that affect g++? printenv lists all variables.

Last edited by derhamster (2013-08-30 17:27:30)