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Please may I know how to browse these libraries of C language in Ubuntu? I want to write vanilla code to plot a graph a graph in two dimensions.

I work on Ubuntu. I am familiar with Turbo C and I used to browse the libraries in Turbo C quite easily. Now, since I am on Ubuntu I want to know how I may browse the libraries.
Thank you.

Thanks for the reply.
I think I was a little aware that I have used statments:


myfunction fun = &numbers;
int a = 2;
int *y;
y = fun(&a); // fun, function pointer is pointing to int*...

The following is the code that I am currently struggling with:
I want to have a function pointer whose return type can be of any data type and whose arguments can be of any data type (there can be...

#include<stdio.h>
char ( *strings(char (*)[10]) )[10];

int main()
{
int i;
char mystring[5][10];
char (*ptrstring)[10];
printf("Enter strings:\n");
for (i = 0; i < 5;...

Hello, I am trying to return the address of a two-dimensional array after passing it to a function and collecting it in **ptrstring.
The code does not compile successfully.
How do I return address...