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c++ Programming Glossary: freqsine wave that slowly ramps up frequency from f1 to f2 for a given time http://stackoverflow.com/questions/11199509/sine-wave-that-slowly-ramps-up-frequency-from-f1-to-f2-for-a-given-time wave that slowly ramps up frequency from f1 to f2 for a given time I'm writing a c program.. program to generate a sinusoidal wave that slowly ramps up frequency from f1 to f2 for a giving time interval. I have written.. time interval. I have written this c program to ramp the frequency from 0 to 10 Hz but the problem is that the frequency changes..
How can I measure CPU time and wall clock time on both Linux/Windows? http://stackoverflow.com/questions/17432502/how-can-i-measure-cpu-time-and-wall-clock-time-on-both-linux-windows #include Windows.h double get_wall_time LARGE_INTEGER time freq if QueryPerformanceFrequency freq Handle error return 0 if.. LARGE_INTEGER time freq if QueryPerformanceFrequency freq Handle error return 0 if QueryPerformanceCounter time Handle.. time Handle error return 0 return double time.QuadPart freq.QuadPart double get_cpu_time FILETIME a b c d if GetProcessTimes..
::std::vector::at() vs operator[] << surprising results!! 5 to 10 times slower/faster! http://stackoverflow.com/questions/3269809/stdvectorat-vs-operator-surprising-results-5-to-10-times-slower-f vector #define ELEMENTS_IN_VECTOR 1000000 int main __int64 freq start end diff_Result if QueryPerformanceFrequency LARGE_INTEGER.. end diff_Result if QueryPerformanceFrequency LARGE_INTEGER freq throw Not supported freq 1000000 microseconds std vector int.. LARGE_INTEGER freq throw Not supported freq 1000000 microseconds std vector int vec vec.reserve ELEMENTS_IN_VECTOR..
Quick and dirty way to profile your code http://stackoverflow.com/questions/61278/quick-and-dirty-way-to-profile-your-code start size_t times const TCHAR name double cpu_frequency cache the CPU frequency which doesn't change. static double.. times const TCHAR name double cpu_frequency cache the CPU frequency which doesn't change. static double ret 0 store as double.. floating point and not truncating if ret 0 LARGE_INTEGER freq QueryPerformanceFrequency freq ret static_cast double freq.QuadPart..
GNU GCC (g++): Why does it generate multiple dtors? http://stackoverflow.com/questions/6613870/gnu-gcc-g-why-does-it-generate-multiple-dtors
Efficient way of storing Huffman tree http://stackoverflow.com/questions/759707/efficient-way-of-storing-huffman-tree file into memory character by character and builds a frequency table for the whole document. This would only require outputting.. read a chunk of data about 64 kilobyte in size and run the frequency analysis over that create a tree and encode it. However.. in this case before every chunk I will need to output my frequency tree so that the decoder is able to re build its tree and..
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