Linux g++

Usage: g++ [options] file...
Options:
-pass-exit-codes         Exit with highest error code from a phase
--help                   Display this information
--target-help            Display target specific command line options
--help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]
                           Display specific types of command line options
(Use '-v --help' to display command line options of sub-processes)
--version                Display compiler version information
-dumpspecs               Display all of the built in spec strings
-dumpversion             Display the version of the compiler
-dumpmachine             Display the compiler's target processor
-print-search-dirs       Display the directories in the compiler's search path
-print-libgcc-file-name Display the name of the compiler's companion library
-print-file-name=<lib>   Display the full path to library <lib>
-print-prog-name=<prog> Display the full path to compiler component <prog>
-print-multiarch         Display the target's normalized GNU triplet, used as
                           a component in the library path
-print-multi-directory   Display the root directory for versions of libgcc
-print-multi-lib         Display the mapping between command line options and
                           multiple library search directories
-print-multi-os-directory Display the relative path to OS libraries
-print-sysroot           Display the target libraries directory
-print-sysroot-headers-suffix Display the sysroot suffix used to find headers
-Wa,<options>            Pass comma-separated <options> on to the assembler
-Wp,<options>            Pass comma-separated <options> on to the preprocessor
-Wl,<options>            Pass comma-separated <options> on to the linker
-Xassembler <arg>        Pass <arg> on to the assembler
-Xpreprocessor <arg>     Pass <arg> on to the preprocessor
-Xlinker <arg>           Pass <arg> on to the linker
-save-temps              Do not delete intermediate files
-save-temps=<arg>        Do not delete intermediate files
-no-canonical-prefixes   Do not canonicalize paths when building relative
                           prefixes to other gcc components
-pipe                    Use pipes rather than intermediate files
-time                    Time the execution of each subprocess
-specs=<file>            Override built-in specs with the contents of <file>
-std=<standard>          Assume that the input sources are for <standard>
--sysroot=<directory>    Use <directory> as the root directory for headers
                           and libraries
-B <directory>           Add <directory> to the compiler's search paths
-v                       Display the programs invoked by the compiler
-###                     Like -v but options quoted and commands not executed
-E                       Preprocess only; do not compile, assemble or link
-S                       Compile only; do not assemble or link
-c                       Compile and assemble, but do not link
-o <file>                Place the output into <file>
-pie                     Create a position independent executable
-shared                  Create a shared library
-x <language>            Specify the language of the following input files
                           Permissible languages include: c c++ assembler none
                           'none' means revert to the default behavior of
                           guessing the language based on the file's extension

Options starting with -g, -f, -m, -O, -W, or --param are automatically
passed on to the various sub-processes invoked by g++. In order to pass
other options on to these processes the -W<letter> options must be used.

For bug reporting instructions, please see:
<http://gcc.gnu.org/bugs.html>.

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Linux g++

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