Hi, I don't know what is wrong with #include "fstream" however when I compile my program with gcc-4.4, it says gcc -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"multi2sim\" -DVERSION=\"3.0.3\" -DSTDC_HEADERS=1 -DHAVE_SYS_WAIT_H=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_FCNTL_H=1 -DHAVE_STDINT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_SYS_TIME_H=1 -DHAVE_TERMIOS_H=1 -DHAVE_UNISTD_H=1 -DHAVE_STRUCT_STAT_ST_BLKSIZE=1 -DHAVE_STRUCT_STAT_ST_BLOCKS=1 -DHAVE_ST_BLOCKS=1 -DHAVE_STRUCT_STAT_ST_RDEV=1 -DTIME_WITH_SYS_TIME=1 -DLSTAT_FOLLOWS_SLASHED_SYMLINK=1 -DLSTAT_FOLLOWS_SLASHED_SYMLINK=1 -DHAVE_STDLIB_H=1 -DHAVE_MALLOC=1 -DHAVE_STDLIB_H=1 -DHAVE_REALLOC=1 -DRETSIGTYPE=void -DHAVE_VPRINTF=1 -DHAVE_ALARM=1 -DHAVE_BZERO=1 -DHAVE_FTRUNCATE=1 -DHAVE_GETCWD=1 -DHAVE_GETTIMEOFDAY=1 -DHAVE_MKDIR=1 -DHAVE_STRCASECMP=1 -DHAVE_STRDUP=1 -DHAVE_STRSTR=1 -I. -I../src/libmhandle -I../src/libstruct -I../src/libopt -I../src/libmisc -I../src/libm2skernel -I../src/libdisasm -I../src/libesim -I../src/libnetwork -I../src/libcachesystem -I../src/libgpukernel -I../src/libgpudisasm -Wall -fno-strict-aliasing -ggdb -MT bpred.o -MD -MP -MF .deps/bpred.Tpo -c -o bpred.o bpred.c bpred.c:21: fatal error: fstream: No such file or directory That file is actually present: mahmood@mpc:~$ find /usr/ -name "fstream" /usr/include/c++/4.1.2/fstream /usr/include/c++/4.4/fstream mahmood@mpc:~$ gcc -v Using built-in specs. Target: i686-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.4.4-14ubuntu5' --with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.4 --enable-shared --enable-multiarch --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.4 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-targets=all --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=i686-linux-gnu --host=i686-linux-gnu --target=i686-linux-gnu Thread model: posix gcc version 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu5) any idea about that? // Naderan *Mahmood;
