If the lambda expression captures anything by copy (either implicitly with capture clause [=] or explicitly with a capture that does not include the character &, e.g. [a, b, c]), the closure type includes unnamed non-static data members, declared in unspecified order, that hold copies of...
__cpp_capture_star_this 以[=,*this] 进行*this 的lambda 按值捕获 201603L (C++17) P0018R3 __cpp_char8_t char8_t 201811L (C++20) P0482R6 char8_t 兼容性和可移植性修复(允许从 UTF-8 字符串字面量初始化(无符号)字符数组) 202207L (C++23)(DR20) P2513R4 __cpp_concepts 概念...
==954== by0x114FC5:run() (run.cpp:6) ==954== by0x1142B9: RunTest_RunOutputsCorrectEquations_Test::TestBody() (run_test.cpp:14) 以by 0x开头的行表示调用栈中的单独函数。我已将输出截断(它有来自GTest的噪声),以便集中显示有趣的部分——最顶层的函数和源代码引用run()(run.cpp:6): 最后,...
Allow Lambda capture [=, this] P0409R2 8 6 19.22* 10.0.0* 5.1 2021.1 20.7 12.0 11.0 __VA_OPT__ P0306R4P1042R1 8 (partial)*10 (partial)*12 9 19.25* 11.0.3* 5.1 2021.1 20.7 12.0 11.0 Designated initializers (FTM)* P0329R4 4.7 (partial)*8 3.0 (partial)*10 19.21* 12.0.0*...
// capture by reference (inherits const qualifier) [&x = i]{}; // int& x [&x = ci]{}; // const int& x [&x = std::as_const(i)]{}; // const int& x (std::as_const() adds const qualifier) // example) a sequential integer generator using stateful lambda auto generator ...
Lambda capture this by value Capturing this in a lambda's environment was previously reference-only. An example of where this is problematic is asynchronous code using callbacks that require an object to be available, potentially past its lifetime. *this (C++17) will now make a copy of the ...
-Warc-maybe-repeated-use-of-weak "weak %select{variable|property|implicit property|instance variable}0 %1 may be accessed multiple times in this %select{function|method|block|lambda}2 and may be unpredictably set to nil assign to a strong variable to keep the object alive ...
Lambda capture of parameter packCapture parameter packs by value:template <typename... Args> auto f(Args&&... args){ // BY VALUE: return [...args = std::forward<Args>(args)] { // ... }; } Capture parameter packs by reference:template <typename... Args> auto f(Args&&... args...
CaptureInRef = + allOf(hasCaptureDefaultKind(LambdaCaptureDefault::LCD_ByRef), + unless(hasAnyCapture( + capturesVar(varDecl(hasSameNameAsBoundNode("param"))); + auto CaptureInCopy = allOf( + hasCaptureDefaultKind(LambdaCaptureDefault::LCD_ByCopy), HasRefToParm); + auto CaptureByRefExplicit...
The migrated API does not return an error code. 0 is returned in the lambda. You may need to rewrite this code. DPCT1035 All SYCL devices can be used by the host to submit tasks. You may need to adjust this code. DPCT1036