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c++ Programming Glossary: overflowBest way to detect integer overflow in C/C++ http://stackoverflow.com/questions/199333/best-way-to-detect-integer-overflow-in-c-c way to detect integer overflow in C C I was writing a program in C to find all solutions of.. However spurious solutions can be generated when a b overflows the integer limit. I ended up checking for this using code.. code like unsigned long b c c_test ... c_test c b Possible overflow if c_test b c There has been an overflow else c c_test No overflow..
Generate random numbers uniformly over an entire range http://stackoverflow.com/questions/288739/generate-random-numbers-uniformly-over-an-entire-range 1 max min 1 min Note make sure RAND_MAX 1 does not overflow thanks Demi The division generates a random number in the interval..
Which, if any, C++ compilers do tail-recursion optimization? http://stackoverflow.com/questions/34125/which-if-any-c-compilers-do-tail-recursion-optimization and checking if it results in an infinite loop or a stack overflow I did this with GCC and found out that O2 is sufficient but.. is perform a call that would otherwise result in a stack overflow or looking at the assembly output. However you cann usually..
What are all the common undefined behaviour that a C++ programmer should know about? [closed] http://stackoverflow.com/questions/367633/what-are-all-the-common-undefined-behaviour-that-a-c-programmer-should-know-ab types Using memcpy to copy overlapping buffers . Buffer overflows Reading or writing to an object or array at an offset that.. is negative or beyond the size of that object stack heap overflow Integer Overflows Signed integer overflow Evaluating an expression.. stack heap overflow Integer Overflows Signed integer overflow Evaluating an expression that is not mathematically defined..
How to determine CPU and memory consumption from inside a process? http://stackoverflow.com/questions/63166/how-to-determine-cpu-and-memory-consumption-from-inside-a-process Add other values in next statement to avoid int overflow on right hand side... totalVirtualMem memInfo.totalswap totalVirtualMem.. Add other values in next statement to avoid int overflow on right hand side... virtualMemUsed memInfo.totalswap memInfo.freeswap.. memInfo.totalram Multiply in next statement to avoid int overflow on right hand side... totalPhysMem memInfo.mem_unit Physical..
When should I use the new keyword in C++? http://stackoverflow.com/questions/655065/when-should-i-use-the-new-keyword-in-c the stack if you allocate too many objects you risk stack overflow. You won't need to delete it later. Memory is no longer allocated..
Why is reading lines from stdin much slower in C++ than Python? http://stackoverflow.com/questions/9371238/why-is-reading-lines-from-stdin-much-slower-in-c-than-python UNSAFE and should NOT BE USED due to potential of buffer overflow. So I wrote this iteration using fgets the safer alternative..
Heap corruption under Win32; how to locate? http://stackoverflow.com/questions/1069/heap-corruption-under-win32-how-to-locate an option. A colleague just walked past and asked Stack Overflow Are we getting stack overflows now And now the question How..
to_string is not a member of std, says so g++ http://stackoverflow.com/questions/12975341/to-string-is-not-a-member-of-std-says-so-g clearly says it exists and an earlier question on Stack Overflow for g version 4.5 says that it can be turned on with the std..
Most vexing parse: why doesn't A a(()); work? http://stackoverflow.com/questions/1424510/most-vexing-parse-why-doesnt-a-a-work parse why doesn't A a work Among the many things Stack Overflow has taught me is what is known as the most vexing parse which..
C++ Cross-Platform High-Resolution Timer http://stackoverflow.com/questions/1487695/c-cross-platform-high-resolution-timer includes a ptime class that's been recommended on Stack Overflow before. See its docs on microsec_clock local_time and microsec_clock..
Common macro to read input data and check its validity http://stackoverflow.com/questions/15792984/common-macro-to-read-input-data-and-check-its-validity to read input data and check its validity I saw on Stack Overflow that many similar questions are repeated and they are related..
How to use SQLite in a multi-threaded application? http://stackoverflow.com/questions/1680249/how-to-use-sqlite-in-a-multi-threaded-application about using it in multiple threads none of the other Stack Overflow questions really helped me unfortunately . My use case The database.. this. I've tried reading around other answers on Stack Overflow the SQLite site but I haven't found all the answers. Here are..
Learning C and/or C++ from beginner to advanced [closed] http://stackoverflow.com/questions/171126/learning-c-and-or-c-from-beginner-to-advanced
How to perform a bitwise operation on floating point numbers http://stackoverflow.com/questions/1723575/how-to-perform-a-bitwise-operation-on-floating-point-numbers . I am doing this to solve the problem described in Stack Overflow question How to solve linear equations using a genetic algorithm..
How to parse space-separated floats in C++ quickly? http://stackoverflow.com/questions/17465061/how-to-parse-space-separated-floats-in-c-quickly do the following float x y z file x y z Someone in Stack Overflow recommended to use Boost.Spirit but I couldn't find any simple..
At what point is it worth using a database? http://stackoverflow.com/questions/2648802/at-what-point-is-it-worth-using-a-database of External Data Structures Posting questions to Stack Overflow about serialization or converting trees and lists to use files..
g++ undefined reference to typeinfo http://stackoverflow.com/questions/307352/g-undefined-reference-to-typeinfo found the solution online but it's not present in Stack Overflow .gnu.linkonce. stuff undefined reference to method object file..
http://stackoverflow.com/questions/357600/is-const-cast-safe on const_cast. The only info I could find on Stack Overflow is The const_cast is used to add remove const ness or volatile..
Does C++ support compile-time counters? http://stackoverflow.com/questions/6166337/does-c-support-compile-time-counters seen id cn 32 cn 0 Add more as desired trimmed for Stack Overflow code block. 1 1 1 1 1 1 Define a single new function..
How to determine CPU and memory consumption from inside a process? http://stackoverflow.com/questions/63166/how-to-determine-cpu-and-memory-consumption-from-inside-a-process totalSys lastTotalSys totalIdle lastTotalIdle Overflow detection. Just skip this value. percent 1.0 else total totalUser.. lastSysCPU timeSample.tms_utime lastUserCPU Overflow detection. Just skip this value. percent 1.0 else percent timeSample.tms_stime..
How much is too much with C++0x auto keyword http://stackoverflow.com/questions/6434971/how-much-is-too-much-with-c0x-auto-keyword was moved to SE.Programmers and then back to Stack Overflow. Discussion about this can be found in this meta question ...
Why should `new` be used as little as possible? http://stackoverflow.com/questions/6500313/why-should-new-be-used-as-little-as-possible be used as little as possible I stumbled upon the Stack Overflow question Memory leak with std string when using std list std..
Subclass/inherit standard containers? http://stackoverflow.com/questions/6806173/subclass-inherit-standard-containers standard containers I often read this statements on Stack Overflow. Personally I don't find any problem with this unless I am using..
How to specialize std::hash<Key>::operator() for user-defined type in unordered containers? http://stackoverflow.com/questions/8157937/how-to-specialize-stdhashkeyoperator-for-user-defined-type-in-unordered include xfunctional various related question s in Stack Overflow it seems possible to specialize std hash X operator namespace..
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