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PinnedHOW TO ANSWER A QUESTION PinPopular
Chris Maunder12-Jul-09 23:37
cofounderChris Maunder12-Jul-09 23:37 
PinnedHOW TO ASK A QUESTION PinPopular
Chris Maunder12-Feb-09 18:19
cofounderChris Maunder12-Feb-09 18:19 
Questiondownload a web page Pin
mike741117hrs 35mins ago
mike741117hrs 35mins ago 
AnswerRe: download a web page Pin
Mircea Neacsu17hrs 5mins ago
Mircea Neacsu17hrs 5mins ago 
GeneralRe: download a web page Pin
mike74118hrs 37mins ago
mike74118hrs 37mins ago 
GeneralRe: download a web page Pin
Mircea Neacsu7hrs 47mins ago
Mircea Neacsu7hrs 47mins ago 
AnswerRe: download a web page Pin
jschell15hrs 13mins ago
jschell15hrs 13mins ago 
AnswerRe: download a web page Pin
Gerry Schmitz14hrs 37mins ago
mveGerry Schmitz14hrs 37mins ago 
Questioncopying a file in C++17 Pin
mike74115-Dec-23 22:36
mike74115-Dec-23 22:36 
AnswerRe: copying a file in C++17 Pin
Richard MacCutchan23hrs 58mins ago
mveRichard MacCutchan23hrs 58mins ago 
AnswerRe: copying a file in C++17 Pin
jschell15hrs 1 min ago
jschell15hrs 1 min ago 
Questionprintf without stdio.h Pin
mike74115-Dec-23 6:21
mike74115-Dec-23 6:21 
AnswerRe: printf without stdio.h Pin
Mircea Neacsu5-Dec-23 6:31
Mircea Neacsu5-Dec-23 6:31 
GeneralRe: printf without stdio.h Pin
mike74115-Dec-23 17:23
mike74115-Dec-23 17:23 
GeneralRe: printf without stdio.h Pin
Mircea Neacsu5-Dec-23 17:42
Mircea Neacsu5-Dec-23 17:42 
AnswerRe: printf without stdio.h Pin
Victor Nijegorodov5-Dec-23 6:32
Victor Nijegorodov5-Dec-23 6:32 
AnswerRe: printf without stdio.h Pin
k50545-Dec-23 7:02
mvek50545-Dec-23 7:02 
iostream provides very complex facilities to C++, and requires a great deal of supporting infrastructure. You can get a list of all the include files that a compilation unit needs by using the /showIncludes flag in your compiles (-H for gcc/clang). Using Compiler Explorer, I see over 100 additional files included, including new, string, istream, ostream, atomic and cstdio (which gets you printf), just to name a few. As others have pointed out, you can just go ahead and use printf for example, and not add #include <cstdio> to your source file. However, as compilers evolve, you may find that this is no longer the case, at which point your code will fail to compile. Its good practice to #include all the relevant headers. System headers, at least, will have guards against multiple inclusions, so there's no harm in being explicit about what headers your program, or module, requires.
"A little song, a little dance, a little seltzer down your pants"
Chuckles the clown

GeneralRe: printf without stdio.h Pin
jschell14hrs 58mins ago
jschell14hrs 58mins ago 
Questioncopying a file Pin
mike74115-Dec-23 4:24
mike74115-Dec-23 4:24 
AnswerRe: copying a file Pin
Mircea Neacsu5-Dec-23 4:32
Mircea Neacsu5-Dec-23 4:32 
AnswerRe: copying a file Pin
Richard MacCutchan5-Dec-23 5:05
mveRichard MacCutchan5-Dec-23 5:05 
AnswerRe: copying a file Pin
k50545-Dec-23 5:42
mvek50545-Dec-23 5:42 
QuestionMyth of a Myth? Pin
jschell4-Dec-23 4:38
jschell4-Dec-23 4:38 
AnswerRe: Myth of a Myth? Pin
Richard MacCutchan4-Dec-23 5:57
mveRichard MacCutchan4-Dec-23 5:57 
AnswerRe: Myth of a Myth? Pin
Mircea Neacsu4-Dec-23 6:05
Mircea Neacsu4-Dec-23 6:05 

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