[Solved] Segmentation Fault on return of main function [closed]

[ad_1] Look at your loop here: for(int i=0; i<3*n; i++) { all[j].h = b[i].h; all[j].w = min(b[i].w,b[i].l); all[j].l = max(b[i].w, b[i].l); j++; // increment all[j].h = b[i].l; all[j].w = min(b[i].w,b[i].h); all[j].l = max(b[i].w, b[i].h); j++; // increment again all[j].h = b[i].w; all[j].w = min(b[i].l,b[i].h); all[j].l = max(b[i].l, b[i].h); j++; // increment once again } Look … Read more

[Solved] Check Username or Password Availability Using AJAX on Codeigniter

[ad_1] You passed username from jQuery with username: $(‘#userId’).val() not userId Try following with $this->input->post(‘username’) $username = strtolower(trim($this->input->post(‘username’))); Or change posted data index from jQuery: username to userId userId: $(‘#userId’).val() 0 [ad_2] solved Check Username or Password Availability Using AJAX on Codeigniter

[Solved] Efficient checking for NULL pointers in function called millions of times [closed]

[ad_1] GNU C compiler has a __builtin_expect to tell the optimizer the most probable outcome of a value. It is not standard C though. You can #define macros to wrap around it and conditionally switch which definition to use, based on the compiler. Linux kernel uses it this way (include/linux/compiler.h): #define likely(x) __builtin_expect(!!(x), 1) #define … Read more

[Solved] Parsing input data from a text file [closed]

[ad_1] #include <stdio.h> #include <stdlib.h> struct classes { char name[20]; char department[5];//+1 for ‘\0’ int course_number; }; int main(void){ FILE *file; char buffer[50]; struct classes student, students[48]; int i, count=0; file = fopen(“inputfile.txt”, “r”); while (fgets(buffer, sizeof(buffer), file)){ //Format : NAME is enrolled in DEPARTMENT NUMBER. if(3 == sscanf(buffer, “%19s %*s %*s %*s %4s %d”, … Read more

[Solved] How to compute calendar date?

[ad_1] Indeed, you can get the date from a Calendar object: Calendar cal = new GregorianCalendar() Date d; cal.add(Calendar.DATE, 3); d = cal.getTime(); [ad_2] solved How to compute calendar date?

[Solved] cannot concatenate ‘str’ and ‘file’ objects : Python error

[ad_1] for src_file, src_code in src_dict.iteritems(): # assuming, here, that you want to honor the handle’s path if already given filename = src_file.name if not “https://stackoverflow.com/” in filename: filename = os.path.join(filepath, filename) try: set.dependencies = subprocess.check_output([‘unifdef’, ‘-s’, filename]) except subprocess.CalledProcessError: pass # etc. By the way, set is a bad variable name, since set is … Read more

[Solved] Need Help to understand the do while loop in details

[ad_1] You are right, all values of deck are 0 at the beginning and the loop works because the do{}while(condition); is executing at least once before checking condition. The loop is looking here for the first uninitialized card. Duplicate output is just what the loop is currently checking, it finds an initialized card so it … Read more

[Solved] How adjust code functionality to specifications using data.table function

[ad_1] With data.table, we can specify the .SDcols to select the ‘DR’ columns or ‘date_cols’ and assign back the output to those, then instead of using rowwise matching, use a row/column indexing to extract the values to create the ‘Result’ library(data.table) # get the column names that starts with DR dr_names <- grep(“^DR”, names(df1), value … Read more

[Solved] PHP’s compilers StringBuilder in C++

[ad_1] This is called string interpolation. It’s not a mystery, or a secret; there’s an entire section of the PHP manual dedicated to explaining it. C has printf that does a very similar thing: const unsigned int MAX_SIZE = 255; char variable[MAX_SIZE]; snprintf(variable, MAX_SIZE-1, “Var1 has %d value. Var 2 has %d value.”, var1, var2); … Read more

[Solved] How to make PHP BB Codes with RegExp?

[ad_1] The user asked for something simple, so I gave him something simple. $input = “[link=http://www.google.com]test[/link]”; $replacement = preg_replace(‘/\[link=(.*?)\](.*?)\[\/link\]/’, ‘<a href=”https://stackoverflow.com/questions/10458103/”>$2</a>’, $input); Where /\[link=(.*?)\](.*?)\[\/link\]/ is the regex, <a href=”https://stackoverflow.com/questions/10458103/”>$2</a> is the format, $input is the input/data, and $replacement is the return. 1 [ad_2] solved How to make PHP BB Codes with RegExp?