Principle of C pointer (41)

C ++ boost Library

1. Install Boost in freebsd

Dp @ dp :~ % Ftp http://jaist.dl.sourceforge.net/project/boost/boost/1.55.0/boost_1_55_0.tar.gz.

Dp @ dp :~ % Tar jxvf boost_000055_0.tar.gz

Dp @ dp :~ % Su

Root @ dp:/home/dp # cd boost_000055_0

Root @ dp:/home/dp/boost_000055_0 #./bootstrap. sh

Root @ dp:/home/dp/boost_000055_0 #./bjam

Root @ dp:/home/dp/boost_000055_0 # ldconfig

Root @ dp:/home/dp/boost_000055_0 # cd ..

Test whether the installation is successful:

Dp @ dp :~ /Boostlearn % cat 1.cpp

# Include

# Include

Int main ()

{

Using boost: lexical_cast;

Int a = lexical_cast ("210923 ");

Double B = lexical_cast ("4358.56 ");

Std: cout <a <std: endl;

Std: cout <B <std: endl;

Return 0;

}

Then compile the above program:

Compile with g ++

Dp @ dp :~ /Boostlearn % g ++-o boost_test1 1.cpp-I/home/dp/boost_1_55_0

Compile with CC

Dp @ dp :~ /Boostlearn % g ++-o boost_test1 1.cpp-I/home/dp/boost_1_55_0

Note: cc and gcc compile C code files, while CC and g ++ compile C ++ code files.

Last run

Dp @ dp :~ /Boostlearn %./boost_test1

210923

4358.56

Dp @ dp :~ /Boostlearn %./boost_test2

210923

4358.56

Dp @ dp :~ /Boostlearn %