Code Visualizer | C/C++

C Code Structure Visualization in DOT Notation

This visualization uses DOT notation to represent the structure and relationships within a C code snippet, detailing headers, macros, and functions for clearer understanding of the code's organization and dependencies.

This Query related with thread "C Integer Processing Program Overview "

Prompt

#include 
#define ERR_ARGS 100
#define ERR_FILE 101
#define ERR_INS 102
#define ERR_ALLOC 666
#define ERR_EMP 103
void show_error_message(int rc);
#include 
#include "error.h"
#define OK 0
void print_array(int *pb, int *pe);
int key(const int *pb_src, const int *pe_src, int **pb_dst, int **pe_dst);
int init_array(char *filepath, int *count, int **arr);
int key(const int *pb_src, const int *pe_src, int **pb_dst, int **pe_dst);
void mysort(void *ptr, size_t count, size_t size, int (*cmp)(const void *, const void *));
int cmp(const void *one, const void *two);
int write_into_file(char *filepath, int *ps, int *pe);

Answer

DOT Visual Representation of C Code Structure

Below is the DOT notation visualization of the provided C code snippet. This visualization captures the relations and structure of defined functions, constants, and included headers.

digraph G {
    rankdir=LR;
    
    // Headers
    node [shape=box];
    header1 [label="#include "];
    header2 [label="#include "];
    header3 [label="#include \"error.h\""];
    
    // Macros
    node [shape=ellipse];
    macro1 [label="#define ERR_ARGS 100"];
    macro2 [label="#define ERR_FILE 101"];
    macro3 [label="#define ERR_INS 102"];
    macro4 [label="#define ERR_ALLOC 666"];
    macro5 [label="#define ERR_EMP 103"];
    macro6 [label="#define OK 0"];
    
    // Functions
    node [shape=diamond];
    func1 [label="void show_error_message(int rc)"];
    func2 [label="void print_array(int *pb, int *pe)"];
    func3 [label="int key(const int *pb_src, const int *pe_src, int **pb_dst, int **pe_dst)"];
    func4 [label="int init_array(char *filepath, int *count, int **arr)"];
    func5 [label="void mysort(void *ptr, size_t count, size_t size, int (*cmp)(const void *, const void *)"];
    func6 [label="int cmp(const void *one, const void *two)"];
    func7 [label="int write_into_file(char *filepath, int *ps, int *pe)"];
    
    // Edges - Including the relationships
    header1 -> macro1;
    header1 -> macro2;
    header1 -> macro3;
    header1 -> macro4;
    header1 -> macro5;
    header1 -> macro6;
    
    header2 -> func3;
    header2 -> func4;
    header2 -> func5;
    header2 -> func6;
    header2 -> func7;
    
    header3 -> func1;
    
    func4 -> header2;
    func1 -> header3;
    func3 -> macro1;
    func3 -> header2;
    func4 -> header2;
    func5 -> header2;
    func6 -> header2;
    func7 -> header2;
}

Explanation:

Headers: Represented as boxes showing the files included by the corresponding #include statements.
- #include <stdio.h>: For standard input and output operations.
- #include <stdlib.h>: For memory allocation, control functions, and other utilities.
- #include "error.h": A custom header presumably for error handling.
Macros: Represented as ellipses. Constants defined for error codes and successful operation.
- ERR_ARGS, ERR_FILE, ERR_INS, ERR_ALLOC, ERR_EMP, OK.
Functions: Represented as diamonds. Functions defined in the code with their return types and parameters.
- show_error_message(int rc), print_array(int *pb, int *pe), key(const int *pb_src, const int *pe_src, int **pb_dst, int **pe_dst), init_array(char *filepath, int *count, int **arr), mysort(void *ptr, size_t count, size_t size, int (*cmp)(const void *, const void *)), cmp(const void *one, const void *two), write_into_file(char *filepath, int *ps, int *pe).
Edges: Arrows indicating relationships between nodes:
- Functions from stdlib.h such as key, init_array, mysort, cmp, and write_into_file.
- Functions defined within the code and are related to headers and macros.

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