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Best way to create unique token in Rails?

...ar to assert the unicity in this case. – Thibaut Barrère Apr 4 '12 at 8:41 1 For those looking f...
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What is an Endpoint?

...is answer told me that it was the latter. – Thorkil Værge Jul 25 '19 at 10:05 So unfortunate that OP didn't select th...
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mqtt协议一般最大支持订阅几个主题? - 创客硬件开发 - 清泛IT社区,为创新赋能!

...内存)往往是更常见的瓶颈。嵌入式设备: 一个运行在ESP32或STM32单片机上的客户端,其可用内存可能只有几百KB。它可能只能成功维护几十个甚至几个订阅,因为每个订阅都需要内存来存储主题过滤器和其他相关状态。超过限...
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Align two inline-blocks left and right on same line

... @ValerioColtrè I agree that the empty space is the most (and possibly, only!) annoying thing about this approach. Explicitly managing your font-size is rather undesirable. I propose a different solution. Note that the .header:after decor...
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In C, do braces act as a stack frame?

...Edit: Kristopher Johnson (and simon and Daniel) are right, and my initial response was wrong. With gcc 4.3.4.on CYGWIN, the code: void foo(int[]); void bar(void); void foobar(int); void foobar(int flag) { if (flag) { int big[100000000]; foo(big); } bar(); } gives: ...
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Why are these constructs using pre and post-increment undefined behavior?

... 0x00000000 <+0>: push %ebp 0x00000001 <+1>: mov %esp,%ebp 0x00000003 <+3>: sub $0x10,%esp 0x00000006 <+6>: movl $0x0,-0x4(%ebp) // i = 0 i = 0 0x0000000d <+13>: addl $0x1,-0x4(%ebp) // i++ i = 1 0x00000011 <+17>: mov ...
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What is the difference between the dot (.) operator and -> in C++? [duplicate]

... edited Apr 19 '17 at 4:00 buræquete 12.5k44 gold badges3131 silver badges6262 bronze badges answered Aug 6 '09 at 12:42 ...
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What is an Android PendingIntent?

...om it was said by Antoine de Saint Exupéry and translated by Lewis Galantière ;) – Choletski Jul 20 '16 at 15:48
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Using CSS to affect div style inside iframe

...lp people give an example to of how to – Simon Dragsbæk Sep 27 '13 at 14:24 is this just come up in 2018? I remember ...
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How to kill all processes matching a name?

... Awesome - Ubuntu 18.04.1 LTS – Salathiel Genèse Oct 23 '18 at 9:23 For case-insensitive matches use -i, like...