The file example.cc contains simple program illustrating a few
features of the L_function class. To build it, we assume that you've
installed libLfunction and its headers to locations where your
compiler and linker know how to find them -- if not by default, then
using the -I and -L C preprocessor flags (CPPFLAGS).
To build the example, run "make -f Makefile.example" from within this
directory. A few standard environment variables affect the outcome:
* CXX: the name of your C++ compiler (default: c++)
* CXXFLAGS: flags to pass to the C++ compiler (default: empty)
* CPPFLAGS: flags to pass to the C++ preprocessor (default: empty)
* LDFLAGS: flags to pass to the linker (default: empty)
* LIBS: the "-l<library>" flags for the linker (default: -lLfunction)
Examples:
1. Compile using g++ from the GNU Compiler Collection:
$ make CXX="g++" -f Makefile.example
2. Compile with g++, using a few performance optimizations:
$ make CXX=g++ CXXFLAGS="-march=native -O2 -pipe" -f Makefile.example
3. Compile using clang++ from LLVM:
$ make CXX="clang++" -f Makefile.example
4. Build against a copy of lcalc installed under /usr/local, and
execute the result:
$ export CPPFLAGS="-I/usr/local/include"
$ export LDFLAGS="-L/usr/local/lib"
$ export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/usr/local/lib"
$ make -f Makefile.example
$ ./example
5. Build in C++17 mode:
$ make CXXFLAGS="-std=c++17" -f Makefile.example
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