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How to replace all occurrences of a string?

...st typical use cases, this is well worth not having to worry about special characters. share | improve this answer | follow | ...
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How to escape a pipe char in a code statement in a markdown table?

...taining pieces of code in Markdown. It works fine except when I put a pipe char (i.e. | ) between the backtick (i.e. ` ) chars. ...
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Fast permutation -> number -> permutation mapping algorithms

..., unfortunately. int n = 5; int[] sequence = new int[] { 1, 2, 0, 1, 0 }; char[] list = new char[] { 'a', 'b', 'c', 'd', 'e' }; char[] permuted = new char[n]; bool[] set = new bool[n]; for (int i = 0; i < n; i++) { int s = sequence[i]; int remainingPosition = 0; int index; // F...
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How to profile a bash shell script slow startup?

...e set -x later and set +x earlier (or bracket several sections of interest selectively). Although it's not as fine-grained as GNU date's nanoseconds, Bash 5 includes a variable which gives the time in microseconds. Using it saves you from spawning an external executable for every line and works on ...
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C++ : why bool is 8 bits long?

... address of an object. The object doesn't have to store its own address. A char is typically 8 bits wide, enough to store any of 256 characters, but each char also has an address defined by where in memory it is located. That is why you can create a pointer to a char. – jalf ...
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How to upload files to server using JSP/Servlet?

... Introduction To browse and select a file for upload you need a HTML <input type="file"> field in the form. As stated in the HTML specification you have to use the POST method and the enctype attribute of the form has to be set to "multipart/form-...
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Meaning of acronym SSO in the context of std::string

... a pointer to the free store ("the heap"), which gives similar performance characteristics as if you were to call new char [size]. This prevents a stack overflow for very large strings, but it can be slower, especially with copy operations. As an optimization, many implementations of std::string cre...
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C++模板的特化 - C/C++ - 清泛网 - 专注C/C++及内核技术

... t1, const T t2) { return t1 < t2 ? t2 : t1; } template <> const char* mymax(const char* t1,const char* t2) { return (strcmp(t1,t2) < 0) ? t2 : t1; } 但是你不能这么搞: template <> bool mymax(const char* t1,const char* t2) { return (strcmp(t1,t2) < 0); } 其实...
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max value of integer

...numbers as they were unsigned (that is, handling all bits correctly). The character data type char is 16 bits wide, unsigned, and holds characters using UTF-16 encoding (however, it is possible to assign a char an arbitrary unsigned 16 bit integer that represents an invalid character codepoint) ...
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Reading string from input with space character? [duplicate]

...s per your need. Use: scanf ("%[^\n]%*c", name); The [] is the scanset character. [^\n] tells that while the input is not a newline ('\n') take input. Then with the %*c it reads the newline character from the input buffer (which is not read), and the * indicates that this read in input is discar...