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How to loop backwards in python? [duplicate]

... All of these three solutions give the same results if the input is a string: 1. def reverse(text): result = "" for i in range(len(text),0,-1): result += text[i-1] return (result) 2. text[::-1] 3. "".join(reversed(text)) ...
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Regex to validate password strength

...: ^ Start anchor (?=.*[A-Z].*[A-Z]) Ensure string has two uppercase letters. (?=.*[!@#$&*]) Ensure string has one special case letter. (?=.*[0-9].*[0-9]) Ensure string has two digits. (?=.*[a-z].*[a-z].*[a-z]) Ensure string has three lowercase le...
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Regarding 'main(int argc, char *argv[])' [duplicate]

...t wrong than the minimum possible value of argc is 1 and argv[0] holds the string ./mymainprogram whereas argv[1] is NULL. My questions are- 1: What is the maximum value that argc can hold? 2: What are these strings that are added to the argv[]? – phougatv Ja...
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Default template arguments for function templates

... I proved with the following code: #include <iostream> #include <string> #include <sstream> #include <ctype.h> template <typename T> T prettify(T t) { return t; } std::string prettify(char c) { std::stringstream ss; if (isprint((unsigned char)c)) { ss...
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sizeof single struct member in C

...->member) and use it like this: typedef struct { float calc; char text[255]; int used; } Parent; typedef struct { char flag; char text[member_size(Parent, text)]; int used; } Child; I'm actually a bit surprised that sizeof((type *)0)->member) is even allowed as a ...
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Initializing a static std::map in C++

... I'm using your first sample as <int,string> to bind error-numbers (from an enum) with messages - it is working like a charm - thank you. – slashmais Sep 22 '10 at 10:57 ...
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Types in MySQL: BigInt(20) vs Int(20)

...---+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-------+------------------+------+-----+---------+-------+ | id | int(20) unsigned | YES | | NULL | | +-------+------------------+------+-----+---------+-------+ 1 row in set (0,00 sec) mysql> IN...
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How do exceptions work (behind the scenes) in c++

...ception, @object .size _ZTS11MyException, 14 _ZTS11MyException: .string "11MyException" The typeinfo data. .section .eh_frame,"a",@progbits .Lframe1: .long .LECIE1-.LSCIE1 .LSCIE1: .long 0x0 .byte 0x1 .string "zPL" .uleb128 0x1 .sleb128 -4 .byte ...
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How to resolve symbolic links in a shell script

...eferences to '/./', '/../' and extra '/' characters in the null terminated string named by path and stores the canonicalized absolute pathname in the buffer of size PATH_MAX named by resolved_path. The resulting path will have no symbolic link, '/./' or '/../' components. ...
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Simple example of threading in C++

...reate a function that you want the thread to execute, eg: void task1(std::string msg) { std::cout << "task1 says: " << msg; } Now create the thread object that will ultimately invoke the function above like so: std::thread t1(task1, "Hello"); (You need to #include <thread&gt...