Recent questions tagged C++

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Range TS idioms and the mysterious auto &&

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241 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - default template class argument confuses g++?

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169 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Is `new (this) MyClass();` undefined behaviour after directly calling the destructor?

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375 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Must construct a QApplication before a QWidget & Invalid parameter passed to C runtime function

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416 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - QWidget::heightForWidth() is not called

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249 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Deduction guide and variadic templates

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224 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Passing template function as argument for normal function

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256 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - What's the purpose of dummy addition in this "number of elements" macro?

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199 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - fallocate vs posix_fallocate

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200 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - C2070 - illegal sizeof operand

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347 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Why must I use address-of operator to get a pointer to a member function?

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275 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Is there any built-in function that convert wstring or wchar_t* to UTF-8 in Linux?

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498 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - What is the Windows equivalent of the Unix function gmtime_r?

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230 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Use decltype and std::function with lambda

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359 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - What's are practical example where acquire release memory order differs from sequential consistency?

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198 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Disabling C++0x features in VC 2010?

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167 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Is std::ofstream movable?

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389 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Regex Boost library linking in release mode warns "duplicate section has different size" when using mingw-w64 toolchain

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268 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - false implicitly convert to null pointer

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197 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Understand structured binding in C++17 by analogy

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262 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Saving an image with imwrite in opencv writes all black but imshow shows correctly

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529 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - what is the best way to avoid negative zero in output?

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582 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Divide by zero prevention

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380 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - 'default' as a variable name

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164 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - GCC warning about implicit dereference

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447 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Why does Qt use a signed integer type for its container classes?

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142 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Comparing command parameter with argv[] is not working

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175 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - Why 10^1 is 11?

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189 views 1 answer

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