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Determining 32 vs 64 bit in C++
...king for a way to reliably determine whether C++ code is being compiled in 32 vs 64 bit. We've come up with what we think is a reasonable solution using macros, but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we are try...
Why is a round-trip conversion via a string not safe for a double?
...f87daf7fa),
/*6*/ I64(0xefb3ab16c59b14a0),
/*7*/ I64(0x850fadc09923329c),
/*8*/ I64(0x93ba47c980e98cde),
/*9*/ I64(0xa402b9c5a8d3a6e6),
/*10*/ I64(0xb616a12b7fe617a8),
/*11*/ I64(0xca28a291859bbf90),
/*12*/ I64(0xe070f78d39275566),
/*13*/ I64(0xf92e0c3537826140),
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A non-blocking read on a subprocess.PIPE in Python
...s and connect to its output stream (standard output). I want to be able to execute non-blocking reads on its standard output. Is there a way to make .readline non-blocking or to check if there is data on the stream before I invoke .readline ? I'd like this to be portable or at least work under Wind...
解决：Run-Time Check Failure #0，The value of ESP was not properly sav...
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你定义函数指针原型时出错。
其实你定义的没有错，但是编译器不认识而已，因为你调用的dll函数是一个远函数，而且是一个C函数，你得告诉编译器它是个c函数才行。那么你就可以在定义该函数的时候加上一句话，
FAR PASCAL ...
coinitialize失败，返回值是0x80010106 无法在设置线程模式后对其加以更改 ...
coinitialize失败，返回值是0x80010106 无法在设置线程模式后对其加以更改无法在设置线程模式后对其加以更改错误代码：2147549446(0x80010106)经分析，是因为调用CoInitialize()不当所致。遂改用CoInitializeEx(NUL...无法在设置线程模式后对其...
蓝牙通信接收的信息出现乱码？ - App应用开发 - 清泛IT社区，为创新赋能！
ESP32发送的是英文字符和数字,编译的蓝牙APP接收的是乱码
请问怎么解决以上问题?我们已经解决过类似问题，有一篇深入的乱码的原理及解决思路的文章：https://www.fun123.cn/reference/iot/bluetooth_codec.html
这里仅提供一下思路：
1、...
How to call an external command?
...ing if there is an easy way to have the command behave exactly as if I had executed it in bash.
– Kevin Wheeler
Sep 1 '15 at 23:17
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how to change directory using Windows command line
I'm using cmd.exe (C:\WINDOWS\System32\cmd.exe) and I have to change my current directory to "D:\temp" i.e. temp folder in the D drive.
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Run a string as a command within a Bash script
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You can use eval to execute a string:
eval $illcommando
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clang: how to list supported target architectures?
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pndcpndc
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