structure

Given a structure array (in C) I am attempting to print out the results in groups of gender and in sub order by numerical order. For example: struct employee{ char gender[13] char name[13]; int id; }; Say I define the structure array like so: struct employee info[2]={{"male","Matt",1234},{"female","Jessica",2345},{"male","Josh",1235}}; How could I go about printing the results like 1234 Matt 1235 Josh 2345 Jessica You'll need to implement a sorting function that compares the structs as you require int compare(const void *s1, const void *s2) { struct employee *e1 = (struct employee *)s1; struct

In C, when we use structures, when would it be inappropriate to use #pragma pack directive..? an addition to the question..... Can someone please explain more on how might the accessing of unaligned data specially with a pointer fail? Firmware developer here. #pragma pack is very familiar territory. I'll explain. In general you should not use #pragma pack . Yes, it will make your structures smaller in memory since it eliminates all padding between struct members. But it can make accessing those members much more expensive since the members may no longer fall along their required alignment. For

I wrote a simple script to calculate the golden ratio from 1,2,5. Is there a way to actually produce a visual through tensorflow (possibly with the aid of matplotlib or networkx ) of the actual graph structure? The doc of tensorflow is pretty similar to a factor graph so I was wondering: How can an image of the graph structure be generated through tensorflow? In this example below, it would be C_1, C_2, C_3 as individual nodes, and then C_1 would have the tf.sqrt operation followed by the operation that brings them together. Maybe the graph structure (nodes,edges) can be imported into networkx

For a simulation program I'm working in Delphi 2010. The simulation isn't a problem but I need to use large collection of data which gives a problem. The data is available in excel sheets, so there is no need to edit this data in Delphi, but collecting this data from the excel sheets takes around 10min. This isn't a problem as long as you don't need to collect the data every time the program runs. So I made a program which collects all the data makes it visible, not problems here,and then store it. However I can't store it to a "Delphi format" , without losing the structure, so it can be

I've started learning Perl but most of my former programming experience has been in languages that emphasize object oriented programming such as C# and Java. All the Perl examples I have found tend to be long single function programs and I find my self writing code the same way. Are there any resources or tutorials for writing maintainable well structured programs? Firstly, regardless of what sort of Perl programming you're doing, you'll probably find Perl::Critic to be invaluable. The command-line tool is by far the most convenient for getting feedback on your code, but you there is also a

I'm trying to write a C structure in a file (to write in binary) and read it to recover it. I don't know if it is possible. Here is what I have : head.hh: #include <iostream> typedef struct s_test { char cmd[5]; std::string str; }t_test; main.cpp: #include <stdlib.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include "head.hh" int main() { t_test test; int fd = open("test", O_APPEND | O_CREAT | O_TRUNC | O_WRONLY, 0666); test.cmd[0] = 's'; test.cmd[1] = 'm'; test.cmd[2] = 's'; test.cmd[3] = 'g'; test.str = "hello world"; write(fd, &test, sizeof(t_test)); close(fd); fd =