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c++ Programming Glossary: blWhat is the fastest integer division supporting division by zero no matter what the result is? http://stackoverflow.com/questions/16777456/what-is-the-fastest-integer-division-supporting-division-by-zero-no-matter-what variant is plain C code with integer arithmetic. My problem is that I typically get a division by zero error for result.. I'm happy with the solution unsigned char kill_zero_table 256 1 1 2 3 4 5 6 7 ... 255 ... result x kill_zero_table y.. 256 1 1 2 3 4 5 6 7 ... 255 ... result x kill_zero_table y But this obviously does not work well for bigger ranges...
Split Multiplication of integers http://stackoverflow.com/questions/19900597/split-multiplication-of-integers l uint32_t base 0x10000 uint32_t al a base ah a base bl b base bh b base l al bl h ah bh uint32_t rlh l base al bh h.. uint32_t al a base ah a base bl b base bh b base l al bl h ah bh uint32_t rlh l base al bh h rlh base rlh rlh base ah.. ah bh uint32_t rlh l base al bh h rlh base rlh rlh base ah bl h rlh base l rlh base base l base share improve this answer..
Strange assembly from array 0-initialization http://stackoverflow.com/questions/531477/strange-assembly-from-array-0-initialization assembly from array 0 initialization Inspired by the question Difference.. an array in c c I decided to actually examine the assembly of in my case an optimized release build for Windows Mobile.. of a a 0 sp stack pointer at bottom The generated assembly with my comments byte a 10 0 01 mov r3 #0 r3 0 02 mov r2 #9..
http://stackoverflow.com/questions/6191678/print-c-vtables-using-gdb C vtables using GDB I'm trying to print an object's vtable using gdb.. C vtables using GDB I'm trying to print an object's vtable using gdb I found the show print vt bl on setting but I still.. an object's vtable using gdb I found the show print vt bl on setting but I still don't actually know how to print the..
OpenCV C++/Obj-C: Proper object detection http://stackoverflow.com/questions/8593652/opencv-c-obj-c-proper-object-detection need background subtraction first I tried that but wasn't able to find contours afterwards Here's my image And that's my output.. cv Mat _image int rh 255 rl 100 gh 255 gl 0 bh 70 bl 0 cv cvtColor _image _image CV_RGB2HSV_FULL cv Mat element getStructuringElement.. cv Size 5 5 cv Mat bgIsolation cv inRange _image cv Scalar bl gl rl cv Scalar bh gh rh bgIsolation bitwise_not bgIsolation..
G++ 4.6 -std=gnu++0x: Static Local Variable Constructor Call Timing and Thread Safety http://stackoverflow.com/questions/9533649/g-4-6-std-gnu0x-static-local-variable-constructor-call-timing-and-thread-s 4.6 std gnu 0x Static Local Variable Constructor Call Timing and Thread Safety void a ... void.. x called at the same time an automatic duration local variable non static would be and not at global static initialization.. test.dump test.o file format elf64 x86 64 Disassembly of section .text 0000000000000000 _Z1av 0 55 push rbp 1 48..
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