G++ isn't compiling!

Question

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)

Answer 1

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");
^