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How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?

...only match at that position or earlier. For example: std::string test = "0123123"; size_t match1 = test.rfind("123"); // returns 4 (rightmost match) size_t match2 = test.rfind("123", 2); // returns 1 (skipped over later match) size_t match3 = test.rfind("123", 0); // returns std::string::npos (i...
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In Python, how do I index a list with another list?

... A functional approach: a = [1,"A", 34, -123, "Hello", 12] b = [0, 2, 5] from operator import itemgetter print(list(itemgetter(*b)(a))) [1, 34, 12] share | impro...
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Submitting HTML form using Jquery AJAX

... answered May 1 '13 at 18:27 abc123abc123 15.5k66 gold badges4444 silver badges7373 bronze badges ...
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How can I move a tag on a git branch to a different commit?

...imately has a problem and needs to be updated/re-released. git tag -d fix123 # delete the old local tag git push github :fix123 # delete the old remote tag (use for each affected remote) git tag fix123 790a621265 # create a new local tag git push github fix123 ...
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What is the best Java email address validation method? [closed]

...tor, and "clearly", they are not valid. Here we go: ., .com, com., abc and 123. Also, adding leading or trailing white space do not invalidate the strings either. You be the judge! – Martin Andersson Mar 19 '13 at 21:12 ...
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SHFileOperation函数总结(文件夹的移动、复制、删除) - C/C++ - 清泛网 -...

...将本地文件复制到192.168.1.99 那么只要在192.168.1.99上共享123目录 然后将pTo设置为 就可以了 但不要设置为 对hNameMappings操作是Undocumented!! 如果没有指定hNameMappings 那么hNameMappings一直是NULL 只有当某种操作(copy,move,rename)引起了...
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How do I get the key at a specific index from a Dictionary in Swift?

...ere is no guarantee it will come out ordered like below) let dict = ["c": 123, "d": 045, "a": 456] for (index, entry) in enumerate(dict) { println(index) // 0 1 2 println(entry) // (d, 45) (c, 123) (a, 456) } If you want to sort first.. var sortedKeysArray = sorted(dict...
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How to get rid of the 'undeclared selector' warning

...se a leak because its selector is unknown". – Hampden123 Nov 20 '13 at 16:38 1 @Hampden123: that ...
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svn : how to create a branch from certain revision of trunk

... actually specify this on the command line using your example: svn copy -r123 http://svn.example.com/repos/calc/trunk \ http://svn.example.com/repos/calc/branches/my-calc-branch Where 123 would be the revision number in trunk you want to copy. As others have noted, you can also use the @ synt...
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How to format strings in Java

...sing it. For example the following code MessageFormat.format("Number {0}", 1234)); depending on default locale can produce Number 1,234 instead of Number 1234. – pavel_kazlou Dec 4 '12 at 10:25 ...