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CPU指令集avx程序无法运行,运行崩溃 - C/C++ - 清泛网 - 专注C/C++及内核技术

... lscpu 命令查看CPU指令集,看是否支持。比如_mm256_cmpeq_epi64 这个函数需要avx2指令集,但是CPU不支持,就导致程序崩溃起不来。原因就是CPU不支持相应的指令集导致的。 Linux上使用 lscpu 命令查看CPU指令集,看是否支持。 比如 _m...
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char类型移动跨平台踩过的坑 - C/C++ - 清泛网 - 专注C/C++及内核技术

...符号处理的,但是在ARM32下被当成了无符号导致问题,ARM64正常有符号。经调查,在PC上,char类型默认为signed-char,但是在一些嵌入式设备 char强转int时,发现在x86平台下是按照有符号处理的,但是在ARM32下被当成了无符号导致问...
https://www.tsingfun.com/it/cp... 

char类型移动跨平台踩过的坑 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术

...符号处理的,但是在ARM32下被当成了无符号导致问题,ARM64正常有符号。经调查,在PC上,char类型默认为signed-char,但是在一些嵌入式设备 char强转int时,发现在x86平台下是按照有符号处理的,但是在ARM32下被当成了无符号导致问...
https://www.tsingfun.com/it/cp... 

char类型移动跨平台踩过的坑 - C/C++ - 清泛网 - 专注C/C++及内核技术

...符号处理的,但是在ARM32下被当成了无符号导致问题,ARM64正常有符号。经调查,在PC上,char类型默认为signed-char,但是在一些嵌入式设备 char强转int时,发现在x86平台下是按照有符号处理的,但是在ARM32下被当成了无符号导致问...
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Open a file with su/sudo inside Emacs

... 64 The nice thing about Tramp is that you only pay for that round-trip to SSH when you open the fi...
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how to split the ng-repeat data with three columns using bootstrap

... 64 This solution is very simple: JSON: [{id:"1",name:"testA"},{id:"2",name:"test B"},{id:"3",nam...
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How to find unused/dead code in java projects [closed]

... 64 CodePro was recently released by Google with the Eclipse project. It is free and highly effect...
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How do you reverse a string in place in C or C++?

...ch more complicated the asm loop body is when xor-swap is compiled for x86-64 with gcc -O3.) Ok, fine, let's fix the UTF-8 chars... (This is XOR-swap thing. Take care to note that you must avoid swapping with self, because if *p and *q are the same location you'll zero it with a^a==0. XOR-swap ...
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What is the difference between C# and .NET?

...drew Hare 310k6363 gold badges611611 silver badges614614 bronze badges 3 ...
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How to remove unreferenced blobs from my git repo

...ultiplyByZer0 3,73333 gold badges2727 silver badges4646 bronze badges answered Feb 6 '13 at 12:06 Sam WatkinsSam Watkins 5,89733 g...