Category : alignment

While reading beginner material/tutorials relevant to lock-free programming (and after doing some exercises) I found this happening. Given the following piece of code (where the only difference is pretty much using alignas(64) in struct node2 while manually "aligning" in struct node1) #include <mutex> #include <benchmark/benchmark.h> struct node1 { node1* next{ nullptr }; int value{ 0 ..

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I am trying to calculate a morph offset for a gpu driven animation. To that effect I have the following function (and SSBOS): layout(std140, binding = 7) buffer morph_buffer { vec4 morph_targets[]; }; layout(std140, binding = 8) buffer morph_weight_buffer { float morph_weights[]; }; vec3 GetMorphOffset() { vec3 offset = vec3(0); for(int target_index=0; target_index < target_count; ..

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Given the following C++ class: class X { public: uint8_t a; uint32_t b[256] __attribute__ ((aligned(32))); }; How can the compiler ensure that the storage for b is 32-byte aligned, when an instance of X is presumably word-aligned? Does the aligned attribute only specify alignment relative to the object instance start address? If so, what is ..

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I would like to add QTextEdit widgets in a layout and alternate the alignment QVBoxLayout *lt = new QVBoxLayout; for(int i=0;i<5;i++) { text1 = new QTextEdit; text1->setText("Hello world !" + QString::number(i)); text1->setMaximumSize(100,30); lt->addWidget(text1); lt->setAlignment(Qt::AlignLeft); if(i%2) { lt->setAlignment(Qt::AlignRight); } else { lt->setAlignment(Qt::AlignLeft); } } setLayout(lt); However, the QTextEdits, are all align on the left. Is there ..

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I would like to add QTextEdit widgets in a layout and alternate the alignment QVBoxLayout *lt = new QVBoxLayout; for(int i=0;i<5;i++) { text1 = new QTextEdit; text1->setText("Hello world !" + QString::number(i)); text1->setMaximumSize(100,30); lt->addWidget(text1); lt->setAlignment(Qt::AlignLeft); if(i%2) { lt->setAlignment(Qt::AlignRight); } else { lt->setAlignment(Qt::AlignLeft); } } setLayout(lt); However, the QTextEdits, are all align on the left. Is there ..

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