gcc编绎器命令示例

GCC stands for "GNU Compiler Collection", support C,C++,Objective-C,

Objective-C++,Java,Fortran, and Ada.



Languages Standards Supported by GCC

1.C language: 

a.C89(or ocasionally as C90),To select this standard in GCC,

use one of the options '-ansi','-std=c90',or '-std=iso9899:1990',to obtian all the diagnostic required by the standard, you should also specify '-pedantic', if you want them to be errors rather than warnings.

b.C99: '-std=c99'

2. GCC supports the ISO C++ standard (1998) and contains experimental support for the upcoming ISO C++ standard(200x).

Option Summary

Here is a summary of all the options, grouped by type. Explanations are in the following

sections.



Overall Options

See Section 3.2 [Options Controlling the Kind of Output], page 22.



-c -S -E -o file -combine -no-canonical-prefixes

-pipe -pass-exit-codes

-x language -v -### --help[=class[,...]] --target-help

--version -wrapper@file -fplugin=file -fplugin-arg-name=arg



C Language Options

See Section 3.4 [Options Controlling C Dialect], page 28.



-ansi -std=standard -fgnu89-inline

-aux-info filename

-fno-asm -fno-builtin -fno-builtin-function

-fhosted -ffreestanding -fopenmp -fms-extensions

-trigraphs -no-integrated-cpp -traditional -traditional-cpp

-fallow-single-precision -fcond-mismatch -flax-vector-conversions

-fsigned-bitfields -fsigned-char

-funsigned-bitfields -funsigned-char



C++ Language Options

See Section 3.5 [Options Controlling C++ Dialect], page 33.



-fabi-version=n -fno-access-control -fcheck-new

-fconserve-space -ffriend-injection

-fno-elide-constructors

-fno-enforce-eh-specs

-ffor-scope -fno-for-scope -fno-gnu-keywords

-fno-implicit-templates

-fno-implicit-inline-templates

-fno-implement-inlines -fms-extensions

-fno-nonansi-builtins -fno-operator-names

-fno-optional-diags -fpermissive

-fno-pretty-templates

-frepo -fno-rtti -fstats -ftemplate-depth=n

-fno-threadsafe-statics -fuse-cxa-atexit -fno-weak -nostdinc++

-fno-default-inline -fvisibility-inlines-hidden

-fvisibility-ms-compat

-Wabi -Wconversion-null -Wctor-dtor-privacy

-Wnon-virtual-dtor -Wreorder

-Weffc++ -Wstrict-null-sentinel

-Wno-non-template-friend -Wold-style-cast

-Woverloaded-virtual -Wno-pmf-conversions

-Wsign-promo



Compilation can involve up to four stages: preprocessing, compilation proper, assembly and linking, always in that order.



example:

g++ hello.cpp -o hello2.exe

gcc hello.c -o hello