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c++ Programming Glossary: subtractingWhat should happen to the negation of a size_t (i.e. `-sizeof(struct foo)`))? http://stackoverflow.com/questions/1269019/what-should-happen-to-the-negation-of-a-size-t-i-e-sizeofstruct-foo ... The negative of an unsigned quantity is computed by subtracting its value from 2 n where n is the number of bits in the pro..
What is exactly the base pointer and stack pointer? To what do they point? http://stackoverflow.com/questions/1395591/what-is-exactly-the-base-pointer-and-stack-pointer-to-what-do-they-point the start of the function. Local variables are accessed by subtracting a constant offset from ebp. All x86 calling conventions define..
implementing the derivative in C/C++ http://stackoverflow.com/questions/1559695/implementing-the-derivative-in-c-c point subtraction increases since the numerator requires subtracting nearly equal numbers. If h is too small you can loose a lot..
How do I gaussian blur an image without using any in-built gaussian functions? http://stackoverflow.com/questions/1696113/how-do-i-gaussian-blur-an-image-without-using-any-in-built-gaussian-functions You can do an edge detect using this sort of filter by subtracting the surrounding pixels from the current pixel. This will leave..
Calculating variance with large numbers http://stackoverflow.com/questions/1721980/calculating-variance-with-large-numbers you're calculating the variance. Variance is calculated by subtracting the mean from every element and calculating the weighted sum..
http://stackoverflow.com/questions/1761626/weighted-random-numbers sum of the weights 3 go through the items one at a time subtracting their weight from your random number until you get the item..
http://stackoverflow.com/questions/2261440/dynamic-allocation-of-memory as all the second code sample is doing is moving adding subtracting the stack pointer rather than manipulating the heap. If you..
Wrapping FILE* with custom std::ostream http://stackoverflow.com/questions/4151504/wrapping-file-with-custom-stdostream pbase is calculating the number of characters to flush by subtracting the base output pointer from the current output pointer put..
How do I convert boost::posix_time::ptime to time_t? http://stackoverflow.com/questions/4461586/how-do-i-convert-boostposix-timeptime-to-time-t way or the best I can do is to compute it directly by subtracting from gregorian date 1970 1 1 c boost boost date time share..
http://stackoverflow.com/questions/4705593/int-vs-const-int is a bidimensional point Rect is a rectangle and adding subtracting a point means translating the rectangle. If however to translate..
How does atoi() function in C++ work? http://stackoverflow.com/questions/5710091/how-does-atoi-function-in-c-work add is the integer value of the character. This is done by subtracting the ascii value of '0' from the ascii value of the digit in..
Error subtracting floating point numbers when passing through 0.0 http://stackoverflow.com/questions/5742032/error-subtracting-floating-point-numbers-when-passing-through-0-0 subtracting floating point numbers when passing through 0.0 The following.. non zero Can anyone tell me what is causing the error when subtracting 0.2 from 0.2 Is this a rounding error or something else Most.. is that 0.2 can't be stored exactly. So when you are subtracting it from some value every time causing some error. If you do..
Multiply two integers without the use of any binary operators http://stackoverflow.com/questions/6386199/multiply-two-integers-without-the-use-of-any-binary-operators Use increment and decrement instead of adding or subtracting one Take advantage of implicit conversion of integral types..
How do compilers treat variable length arrays http://stackoverflow.com/questions/7627235/how-do-compilers-treat-variable-length-arrays how much memory to reserve inside the function normally by subtracting the stack pointer in order to accomodate the number of elements..
Integer subtraction with wrap around for N bits http://stackoverflow.com/questions/8309538/integer-subtraction-with-wrap-around-for-n-bits is bad something like v max 2 v max return v For example subtracting 24 from 16 with 5 bit wrap with a range of 32 31 sub_wrap 5..
New velocity after circle collision http://stackoverflow.com/questions/8429315/new-velocity-after-circle-collision c p . That is the normalized vector you obtain when subtracting p from c . Now I have taken coeff to be a fudge factor between..
How to check dependencies of floats http://stackoverflow.com/questions/9136860/how-to-check-dependencies-of-floats that remains. Absolute errors are adding to at adding and subtracting and the error of x is negligibly small. Surely you are not counting.. divide greater valuer by lesser one and God save you from subtracting the close values after that. There are two simple ways to escape..
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