Programming Forums > Application Development > C++

linuxpimp20 · May 22nd, 2005, 7:38 AM

I am attempting to learn C and C++. I don't want to just get comfortable with it but be able to say im proficient in them. I wanted to know what libraries are a must to learn in able to say you've "mastered" the language. thanks in advance.

jeff

iignotus · May 22nd, 2005, 9:58 AM

I would say stdio (or iostream), stdlib, time, and maybe math, as well as the STL (notably string and vector). That's the most useful part of the basic language, for me.

To "master" the language, though, you'd have to learn all of them

Ooble · May 22nd, 2005, 12:04 PM

I would add file.h, dir.h and fstream to those.

uman · May 22nd, 2005, 11:50 PM

I vote for std::map and std::deque in addition to the ones already mentioned. Don't bother with stdio.h, file.h, etc. if you're using C++.

IMO, don't bother with std::stack or std::queue. If there is a use for them, I haven't found it yet.

Riddle · May 23rd, 2005, 1:00 AM

Depends on what kind of programs you want to make. iostream.h will most likely be essential, fstream.h comes in handy for file i/o, and looking into stdlib.h wouldn't hurt.

winsock is useful for (as the name might give away) socket programming. This could by used to make port scanners, packet sniffers, and the like.. like I said though, it depends on what you're into.

uman · May 23rd, 2005, 1:27 AM

by the way, for C++ standard library headers you should use <iostream> instead of <iostream.h>, <fstream> instead of <fstream.h>, etc. For C standard library headers, use <cstdlib> instead of <stdlib.h>, <ctime>, <cstdlib>, etc.

Infinite Recursion · May 23rd, 2005, 10:35 AM

iostream, fstream, stdlib, math, string, vector, etc. The standard template library would make your life easier... learn the libraries or at least how to use them if they deal with data or file structures.

if you are in the unix world and writing C code... learn these...
(taken from a program I wrote this morning)

#include <stdio.h>
#include <signal.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/timeb.h>
#include <time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/stat.h>
#include <unistd.h>
#include <syslog.h>
#include <sec/des.h>

May 22nd, 2005, 7:38 AM	#1
linuxpimp20 Hobbyist Programmer Join Date: May 2005 Location: ma Posts: 130 Rep Power: 4	essential C/C++ libraries to know? I am attempting to learn C and C++. I don't want to just get comfortable with it but be able to say im proficient in them. I wanted to know what libraries are a must to learn in able to say you've "mastered" the language. thanks in advance. jeff

May 22nd, 2005, 9:58 AM	#2
iignotus Professional Programmer Join Date: Apr 2005 Location: Nowhere Special Posts: 466 Rep Power: 4	I would say stdio (or iostream), stdlib, time, and maybe math, as well as the STL (notably string and vector). That's the most useful part of the basic language, for me. To "master" the language, though, you'd have to learn all of them __________________ (Toggle Plain Text) % rc4 hexkey < input > output #define S ,t=s[i],s[i]=s[j],s[j]=t /* rc4 hexkey <file / unsigned char k[256],s[256],i,j,t;main(c,v,e)charv;{++v;while(++i)s[ i]=i;for(c=0;(v)++;k[c++]=e)sscanf((v)++-1,"%2x",&e);while(j+=s[i] +k[i%c]S,++i);for(j=0;c=~getchar();putchar(~c^s[t+=s[i]]))j+=s[++i]S;}

May 22nd, 2005, 12:04 PM	#3
Ooble I eat cake for breakfast. Join Date: Jul 2004 Location: In my box. Posts: 4,434 Rep Power: 9	I would add file.h, dir.h and fstream to those. __________________ Me :: You :: Them

May 23rd, 2005, 10:35 AM	#7
Infinite Recursion Programming Guru Join Date: Jul 2004 Location: United States Posts: 3,467 Rep Power: 8	iostream, fstream, stdlib, math, string, vector, etc. The standard template library would make your life easier... learn the libraries or at least how to use them if they deal with data or file structures. if you are in the unix world and writing C code... learn these... (taken from a program I wrote this morning) #include <stdio.h> #include <signal.h> #include <ctype.h> #include <sys/types.h> #include <sys/timeb.h> #include <time.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <netdb.h> #include <sys/stat.h> #include <unistd.h> #include <syslog.h> #include <sec/des.h> __________________ http://jasonpowers.net "There are a thousand hacking at the branches of evil to one who is striking at the root."

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May 22nd, 2005, 11:50 PM	#4
uman Expert Programmer Join Date: Dec 2004 Posts: 794 Rep Power: 4	I vote for std::map and std::deque in addition to the ones already mentioned. Don't bother with stdio.h, file.h, etc. if you're using C++. IMO, don't bother with std::stack or std::queue. If there is a use for them, I haven't found it yet.

May 23rd, 2005, 1:00 AM	#5
Riddle Programmer Join Date: May 2005 Location: Nar Shaddaa Posts: 42 Rep Power: 0	Depends on what kind of programs you want to make. iostream.h will most likely be essential, fstream.h comes in handy for file i/o, and looking into stdlib.h wouldn't hurt. winsock is useful for (as the name might give away) socket programming. This could by used to make port scanners, packet sniffers, and the like.. like I said though, it depends on what you're into.

May 23rd, 2005, 1:27 AM	#6
uman Expert Programmer Join Date: Dec 2004 Posts: 794 Rep Power: 4	by the way, for C++ standard library headers you should use <iostream> instead of <iostream.h>, <fstream> instead of <fstream.h>, etc. For C standard library headers, use <cstdlib> instead of <stdlib.h>, <ctime>, <cstdlib>, etc.

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Programming Forums > Application Development > C++

essential C/C++ libraries to know?