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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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How do I use valgrind to find memory leaks?
...ok at the C code I wrote too:
#include <stdlib.h>
int main() {
char* string = malloc(5 * sizeof(char)); //LEAK: not freed!
return 0;
}
Well, there were 5 bytes lost. How did it happen? The error report just says
main and malloc. In a larger program, that would be seriously trouble...
How to replace all occurrences of a string?
...st typical use cases, this is well worth not having to worry about special characters.
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What happens to an open file handle on Linux if the pointed file gets moved or deleted
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void perror_and_exit() {
perror(NULL);
exit(1);
}
int main(int argc, char *argv[]) {
int fd;
if ((fd = open("data", O_RDONLY)) == -1) {
perror_and_exit();
}
char buf[5];
for (int i = 0; i < 5; i++) {
bzero(buf, 5);
if (read(fd, buf, 5) != 5) {
perror_and_exit();
...
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...
How to upload files to server using JSP/Servlet?
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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-...
How do I get the directory that a program is running from?
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How about add char pBuf[256]; size_t len = sizeof(pBuf); to let the solution more clearly.
– charles.cc.hsu
Oct 5 '16 at 13:22
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Command-line Unix ASCII-based charting / plotting tool
Is there a good command-line UNIX charting / graphing / plotting tool out there? I'm looking for something that will plot xy points on an ASCII graph.
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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...
How to increment a pointer address and pointer's value?
... ----------
let me give an example, this might help;
char **str;
str = (char **)malloc(sizeof(char*)*2); // allocate mem for 2 char*
str[0]=(char *)malloc(sizeof(char)*10); // allocate mem for 10 char
str[1]=(char *)malloc(sizeof(char)*10); // allocate m...