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Check if a string contains a string in C++

...lt;chrono> std::string randomString( size_t len ); int main(int argc, char* argv[]) { using namespace std::chrono; const size_t haystacksCount = 200000; std::string haystacks[haystacksCount]; std::string needle = "hello"; bool sink = true; high...
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How do you append an int to a string in C++? [duplicate]

... Following on Eric's comment: char cstr[10];sprintf(cstr,"Player %d",i); or char *cstr;asprintf(cstr,"Player %d",i); – tomsmeding Dec 26 '13 at 17:33 ...
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What are the downsides to using Dependency Injection? [closed]

...inject - the text "Hello World". Easy enough... void Say_Something (const char *p_text) { std::cout << p_text << std::endl; } How is that more inflexible than the original? Well, what if I decide that the output should be unicode. I probably want to switch from std::cout to std::wco...
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Position of least significant bit that is set

...x077CB531U)) >> 27]; } } return total; } unsigned char lowestBitTable[256]; int get_lowest_set_bit(unsigned num) { unsigned mask = 1; for (int cnt = 1; cnt <= 32; cnt++, mask <<= 1) { if (num & mask) { return cnt; } } ...
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Max length UITextField

When I've tried How to you set the maximum number of characters that can be entered into a UITextField using swift? , I saw that if I use all 10 characters, I can't erase the character too. ...
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Are HLists nothing more than a convoluted way of writing tuples?

...provides a form of polymorphic function value which allows the compiler to select type-specific cases in exactly the way you're doubtful about. For instance, // size is a function from values of arbitrary type to a 'size' which is // defined via type specific cases object size extends Poly1 { imp...
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Set breakpoint in C or C++ code programmatically for gdb on Linux

... By looking here, I found the following way: void main(int argc, char** argv) { asm("int $3"); int a = 3; a++; // In gdb> print a; expect result to be 3 } This seems a touch hackish to me. And I think this only works on x86 architecture. ...
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JPG vs. JPEG image formats

...ut it is inaccurate. • The JPEG group were mostly Unix shops, thus the 4-char .jpeg extension, not because of Mac. • It was the DOS 8.3 limit that caused the shortening to .jpg — windows was just a shell on top of DOS. • The commonly accepted .jpg form is because of programs that had to cope...
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How to remove line breaks from a file in Java?

...eplace actually does is to create and return a new String object with the characters changed as required. But your code then throws away that String ... Here are some possible solutions. Which one is most correct depends on what exactly you are trying to do. // #1 text = text.replace("\n", ""...
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Check string for palindrome

... Why not just: public static boolean istPalindrom(char[] word){ int i1 = 0; int i2 = word.length - 1; while (i2 > i1) { if (word[i1] != word[i2]) { return false; } ++i1; --i2; } return true; } Example: Inp...