源内海合会部分禁用迂腐警告 [英] Partially disable pedantic warnings in gcc within source

问题描述

我试图让 GCC 闭嘴我的二进制常量的使用。它们使code更具可读性，而且$ P $使用 -pedantic 我遵守，否则pvent我。我要么想拥有像 -fnobinaryconstwarn 开关或类似的（我不认为细读了一阵手册页之后存在），或者使用

I am trying to get gcc to shut up about my usage of binary constants. They make the code more readable, but prevent me from using -pedantic which I comply with otherwise. I would either like to have a switch like -fnobinaryconstwarn or similar (which I don't think exists after perusing the man page for a while) or use a

#pragma GCC diagnostic ignored "-pedantic" 

有选择性地禁用喜欢这里描述的一小段迂腐的警告：
<一href=\"http://stackoverflow.com/questions/965093/selectively-disable-gcc-warnings-for-only-part-of-a-translation-unit\">Selectively禁用GCC警告只是一个翻译单元的一部分？
不幸的是，似乎并没有工作。
我有哪些选择？

to selectively disable the pedantic warnings for a short stretch like described here: Selectively disable GCC warnings for only part of a translation unit? Unfortunately that doesn't seem to work. What are my options?

有关铛

#pragma GCC diagnostic ignored "-Wpedantic"

的作品，而上面的行不，但它产生一个错误 GCC 。

推荐答案

也许，你可以使用宏，可以做自己想做的可移植的方式来实现的。
这里有一个简单的例子：

maybe, you could use a macro which can do what you want to achieve in a portable manner. here's a short example:

#include <stdio.h>

#define BINARY(N) strtol(#N, 0, 2)

int main()
{
    unsigned int piece = BINARY(10010101);
    printf("%u\n", piece);

    return 0;
}

在理论上，GCC应该能够优化调用strtol将离开，你不会失去可读性。

in theory, gcc should be able to optimize the calls to strtol away and you don't lose readability.

编辑：看来，GCC不优化strtol将呼吁远离截至目前。然而，你的表现应该的损失可以忽略不计。

It seems that gcc does NOT optimize the strtol calls away as of now. However, your performance loss should be negligible.

干杯！

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