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将Linux代码移植到Windows的简单方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...先是一些准备工作,在Windows平台上面安装上Cygwin的最新版本,在Cygwin中安装好GCC等开发工具。 同样也需要一个Windows开发环境。可以使用最新版本Visual Studio, Microsoft Visual Studio .NET 2003。从www.gnu.org上取得Tar的最新源代码,版本是1...
正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...现(?),最后是8个数字(\d{8})。
分枝条件
不幸的是,刚才那个表达式也能匹配010)12345678或(022-87654321这样的“不正确”的格式。要解决这个问题,我们需要用到分枝条件。正则表达式里的分枝条件指的是有几种规则,如果满足其...
Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注IT技能提升
...C) -o foo $(objects) $(normal_libs)
当然,我们还可以把上面的那个例子写得更简洁一些:
libs_for_gcc = -lgnu
normal_libs =
ifeq ($(CC),gcc)
libs=$(libs_for_gcc)
else
libs=$(normal_libs)
endif
foo: $(objects)
$(CC) -o foo $(objects) $(libs)
...
Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注IT技能提升
...C) -o foo $(objects) $(normal_libs)
当然,我们还可以把上面的那个例子写得更简洁一些:
libs_for_gcc = -lgnu
normal_libs =
ifeq ($(CC),gcc)
libs=$(libs_for_gcc)
else
libs=$(normal_libs)
endif
foo: $(objects)
$(CC) -o foo $(objects) $(libs)
...
Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注IT技能提升
...C) -o foo $(objects) $(normal_libs)
当然,我们还可以把上面的那个例子写得更简洁一些:
libs_for_gcc = -lgnu
normal_libs =
ifeq ($(CC),gcc)
libs=$(libs_for_gcc)
else
libs=$(normal_libs)
endif
foo: $(objects)
$(CC) -o foo $(objects) $(libs)
...
Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注IT技能提升
...C) -o foo $(objects) $(normal_libs)
当然,我们还可以把上面的那个例子写得更简洁一些:
libs_for_gcc = -lgnu
normal_libs =
ifeq ($(CC),gcc)
libs=$(libs_for_gcc)
else
libs=$(normal_libs)
endif
foo: $(objects)
$(CC) -o foo $(objects) $(libs)
...
Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注IT技能提升
...C) -o foo $(objects) $(normal_libs)
当然,我们还可以把上面的那个例子写得更简洁一些:
libs_for_gcc = -lgnu
normal_libs =
ifeq ($(CC),gcc)
libs=$(libs_for_gcc)
else
libs=$(normal_libs)
endif
foo: $(objects)
$(CC) -o foo $(objects) $(libs)
...
Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注IT技能提升
...C) -o foo $(objects) $(normal_libs)
当然,我们还可以把上面的那个例子写得更简洁一些:
libs_for_gcc = -lgnu
normal_libs =
ifeq ($(CC),gcc)
libs=$(libs_for_gcc)
else
libs=$(normal_libs)
endif
foo: $(objects)
$(CC) -o foo $(objects) $(libs)
...
Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注IT技能提升
...C) -o foo $(objects) $(normal_libs)
当然,我们还可以把上面的那个例子写得更简洁一些:
libs_for_gcc = -lgnu
normal_libs =
ifeq ($(CC),gcc)
libs=$(libs_for_gcc)
else
libs=$(normal_libs)
endif
foo: $(objects)
$(CC) -o foo $(objects) $(libs)
...
Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注IT技能提升
...C) -o foo $(objects) $(normal_libs)
当然,我们还可以把上面的那个例子写得更简洁一些:
libs_for_gcc = -lgnu
normal_libs =
ifeq ($(CC),gcc)
libs=$(libs_for_gcc)
else
libs=$(normal_libs)
endif
foo: $(objects)
$(CC) -o foo $(objects) $(libs)
...
