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c++ Programming Glossary: lowerhttp://stackoverflow.com/questions/11004273/what-is-stdpromise safer and easier to use std async . std promise is a bit lower level for when you want to pass an asynchronous result to the..
Any reason to overload global new and delete? http://stackoverflow.com/questions/1152511/any-reason-to-overload-global-new-and-delete functions or introducing a pool of objects might lower the overhead but doing these things globally Addition I've just..
Case insensitive string comparison in C++ http://stackoverflow.com/questions/11635/case-insensitive-string-comparison-in-c in C with out transforming a string to all upper or lower case Also what ever methods you present are they Unicode friendly..
C++ Vector of Pointers to Objects http://stackoverflow.com/questions/1361139/c-vector-of-pointers-to-objects the reference count and moving transfers ownership at a lower almost free cost . You make them with std make_shared or directly..
http://stackoverflow.com/questions/2346806/what-is-segmentation-fault C . There are many ways to get a segfault at least in the lower level languages such as C . A common way to get a segfault is..
http://stackoverflow.com/questions/253157/how-to-downsize-stdvector std vector Is there a way to resize a std vector to lower capacity when I no longer need previously reserved space c..
http://stackoverflow.com/questions/313970/stl-string-to-lower-case String to lower case I want to convert an STL String to lowercase. I am aware.. String to lower case I want to convert an STL String to lowercase. I am aware of the function tolower however in the past.. an STL String to lowercase. I am aware of the function tolower however in the past I have had issues with this function and..
When and why will an OS initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete? http://stackoverflow.com/questions/370195/when-and-why-will-an-os-initialise-memory-to-0xcd-0xdd-etc-on-malloc-free-new odd numbers are good for finding bugs assuming a cleared lower bit. Large numbers byte values at least are less typical and..
http://stackoverflow.com/questions/408670/stack-static-and-heap-in-c the end only. Stacks usually start high and grow down to lower addresses. You run out of memory when the stack meets the dynamic..
Generating random integer from a range http://stackoverflow.com/questions/5008804/generating-random-integer-from-a-range rand int max min 1 This is still slightly biased towards lower numbers but much less so than your original version. It's also..
Flags to enable thorough and verbose g++ warnings http://stackoverflow.com/questions/5088460/flags-to-enable-thorough-and-verbose-g-warnings looks like level 1 and 2 give more warnings. In theory a lower level is a 'stronger' warning but it's at the cost of more false..
How does the Comma Operator work http://stackoverflow.com/questions/54142/how-does-the-comma-operator-work
Operator Precedence vs Order of Evaluation http://stackoverflow.com/questions/5473107/operator-precedence-vs-order-of-evaluation is meaningful only if other operators with higher or lower precedence are present. Expressions with higher precedence operators..
What are the barriers to understanding pointers and what can be done to overcome them? http://stackoverflow.com/questions/5727/what-are-the-barriers-to-understanding-pointers-and-what-can-be-done-to-overcome one in memory. In other words the second house will have a lower address than the first one. Also they're allocated right next..
Gui toolkits, which should I use? [closed] http://stackoverflow.com/questions/584734/gui-toolkits-which-should-i-use is usable but not really comparable to Qt. Its a much lower level toolkit and isn't as easy to use or fully rounded. Gtkmm..
http://stackoverflow.com/questions/6319146/c11-introduced-a-standardized-memory-model-what-does-it-mean-and-how-is-it-g them. But sometimes for performance reasons you want lower level primitives e.g. the classic double checked locking pattern..
Square detection doesn't find squares http://stackoverflow.com/questions/7731742/square-detection-doesnt-find-squares Canny. Take the upper threshold from slider and set the lower to 0 which forces edges merging Canny gray0 gray 0 thresh 5..
Need for predictable random generator http://stackoverflow.com/questions/910215/need-for-predictable-random-generator For instance for a probability of 20 you could set 10 as a lower bound and 40 as an upper bound. Using those bounds I found that.. offset this by setting its real probability a little bit lower. A probability of 17.5 with the fairish modification yields..
Why does changing 0.1f to 0 slow down performance by 10x? http://stackoverflow.com/questions/9314534/why-does-changing-0-1f-to-0-slow-down-performance-by-10x floating point can be tens to hundreds of times slower than on normalized floating point. This is because many processors.. Then the version with 0 is no longer 10x slower and actually becomes faster. This requires that the code be.. SSE enabled. This means that rather than using these weird lower precision almost zero values we just round to zero instead...
http://stackoverflow.com/questions/11246423/rand-generating-same-numbers Attempt cin mynumber if mynumber TheNumber cout Lower endl else if mynumber TheNumber cout Higher endl while mynumber..
http://stackoverflow.com/questions/11491/string-to-lower-upper-in-c To Lower Upper in C What is the best way people have found to do String.. C What is the best way people have found to do String to Lower case Upper case in C The issue is complicated by the fact that..
Lower than low level common bsd sockets http://stackoverflow.com/questions/124968/lower-than-low-level-common-bsd-sockets than low level common bsd sockets How do you do low low level..
What are the Complexity guarantees of the standard containers? http://stackoverflow.com/questions/181693/what-are-the-complexity-guarantees-of-the-standard-containers S count O log n k find O ln n equal range O ln n Lower Bound Upper Bound O ln n Equality O n InEquality O n Element..
What techniques can be used to speed up C++ compilation times? http://stackoverflow.com/questions/373142/what-techniques-can-be-used-to-speed-up-c-compilation-times parallel utilities Incredibuild Unity Build distcc Use a Lower Optimization Level The more the compiler tries to optimize the..
Returning the greatest key strictly less than the given key in a C++ Map http://stackoverflow.com/questions/529831/returning-the-greatest-key-strictly-less-than-the-given-key-in-a-c-map strictly return the value greater than the passed value. Lower key Use case I have a map with times as keys in a sorted manner..
Optimizations for pow() with const non-integer exponent? http://stackoverflow.com/questions/6475373/optimizations-for-pow-with-const-non-integer-exponent x1 fastpow 24 10 1 1 x0 std printf Direct x^2.4 vg n x1 Lower exponents provide lower initial error but too low causes overflow... result vg n ret return ret __m128 pow125_4 __m128 arg Lower exponents provide lower initial error but too low causes overflow...
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