C ++在初始化程序中指定数组索引，例如C [英] C++ specify array indexes in initializer, like C

问题描述

我以前使用过C(嵌入式的东西)，我可以像这样初始化我的数组:

I used C before (embedded stuff), and I can initialize my arrays like that:

int widths[] = { [0 ... 9] = 1, [10 ... 99] = 2, [100] = 3 };

即我可以在初始化器中指定索引.目前，我正在学习 Qt/C ++ ，我不敢相信C ++不支持此功能.

i.e. I can specify indexes inside initializer. Currently I'm learning Qt/C++, and I can't believe this isn't supported in C++.

我有这个选项: -std = gnu ++ 0x ，但是无论如何它不被支持.(我不知道C ++ 11是否支持它，因为Qt在gcc 4.7.x上无法正常工作)

I have this option: -std=gnu++0x, but anyway it isn't supported. (I don't know if it is supported in C++11, because Qt works buggy with gcc 4.7.x)

那么，C ++真的不支持它吗?也许有办法启用它?

So, is it really not supported in C++? Or maybe there's a way to enable it?

UPD:当前我要初始化const数组，因此 std :: fill 无法正常工作.

UPD: currently I want to initialize const array, so std::fill won't work.

推荐答案

几年后，我偶然地对其进行了测试，并且可以确认它可以在 g ++ -std = c ++ 11 中使用，g ++版本为4.8.2.

After years, I tested it just by chance, and I can confirm that it works in g++ -std=c++11, g++ version is 4.8.2.

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