C++学习（四）namespace可以嵌套

最新推荐文章于 2025-05-28 08:56:53 发布

hankern

最新推荐文章于 2025-05-28 08:56:53 发布

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分类专栏： C++ C++学习

本文链接：https://blog.youkuaiyun.com/hankern/article/details/90596885

本文详细探讨了C++中的namespace如何进行嵌套，解释了嵌套namespace的作用，以及它如何帮助减少命名冲突。通过实例，展示了如何在不同层级的namespace中组织代码，以实现更清晰的模块化设计。

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namespace osgEarth
{
    namespace ShaderComp
    {
        // User function injection points.
        enum FunctionLocation
        {
            // vertex is in model space (equivalent to gl_Vertex).
            LOCATION_VERTEX_MODEL,

            // vertex is in view(aka eye) coordinates, with the camera at 0,0,0 
            // looking down the -Z axis.
            LOCATION_VERTEX_VIEW,

            // vertex is in post-perspective coordinates; [-w..w] along each axis
            LOCATION_VERTEX_CLIP,

            // tessellation control shader; model space
            LOCATION_TESS_CONTROL,

            // tessellation evalulation shader; model space
            LOCATION_TESS_EVALUATION,

            // geometry shader; inputs are in model space.
            LOCATION_GEOMETRY,

            // fragment is being colored.
            LOCATION_FRAGMENT_COLORING,

            // fragment is being lit.
            LOCATION_FRAGMENT_LIGHTING,