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{{fbdoc item="title" value="Comparison of C/C++ and FreeBASIC"}}----

<<**""C/C++""**<<>>**""FreeBASIC""**>>


{{fbdoc item="subsect" value="variable declaration"}}
<<##int a;
int a, b, c;##<<>>##dim a as long
dim as long a, b, c##>>


{{fbdoc item="subsect" value="uninitialized variable"}}
<<##int a;##<<>>##dim a as long = any##>>

{{fbdoc item="subsect" value="zero-initialized variable"}}
<<##int a = 0;##<<>>##dim a as long##>>

{{fbdoc item="subsect" value="initialized variable"}}
<<##int a = 123;##<<>>##dim a as long = 123##>>

{{fbdoc item="subsect" value="array"}}
<<##int a[4];
a[0] = 1;##<<>>##dim a(0 to 3) as long
a(0) = 1##>>


{{fbdoc item="subsect" value="pointer"}}
<<##int a;
int *p;
p = &a;
*p = 123;##<<>>##dim a as long
dim p as long ptr
p = @a
*p = 123##>>




{{fbdoc item="subsect" value="structure, user-defined type"}}
<<##struct UDT {
int myfield;
}##<<>>##type UDT
myfield as long
end type##>>



{{fbdoc item="subsect" value="typedef, type alias"}}
<<##typedef int myint;##<<>>##type myint as long##>>

{{fbdoc item="subsect" value="struct pointer"}}
<<##struct UDT x;
struct UDT *p;
p = &x;
p->myfield = 123;##<<>>##dim x as UDT
dim p as UDT ptr
p = @x
p->myfield = 123##>>




{{fbdoc item="subsect" value="function declaration"}}
<<##int foo( void );##<<>>##declare function foo( ) as long##>>

{{fbdoc item="subsect" value="function body"}}
<<##int foo( void ) {
return 123;
}##<<>>##function foo( ) as long
return 123
end function##>>



{{fbdoc item="subsect" value="sub declaration"}}
<<##void foo( void );##<<>>##declare sub foo( )##>>

{{fbdoc item="subsect" value="sub body"}}
<<##void foo( void ) {
}##<<>>##sub foo( )
end sub##>>


{{fbdoc item="subsect" value="byval parameters"}}
<<##void foo( int param );
foo( a );##<<>>##declare sub foo( byval param as long )
foo( a );##>>


{{fbdoc item="subsect" value="byref parameters"}}
<<##void foo( int *param );
foo( &a );

void foo( int& param );
foo( a );##<<>>##declare sub foo( byref param as long )
foo( a )##



>>





{{fbdoc item="subsect" value="statement separator"}}
<<##;##

<<>>##:##
##<end-of-line>##>>


{{fbdoc item="subsect" value="for loop"}}
<<##for (int i = 0; i < 10; ""i++"") {
...
}##<<>>##for i as long = 0 to 9
...
next##>>



{{fbdoc item="subsect" value="while loop"}}
<<##while (condition) {
...
}##<<>>##while condition
...
wend##>>



{{fbdoc item="subsect" value="do-while loop"}}
<<##do {
...
} while (condition);##<<>>##do
...
loop while condition##>>



{{fbdoc item="subsect" value="if block"}}
<<##if (condition) {
...
} else if (condition) {
...
} else {
...
}##<<>>##if condition then
...
elseif condition then
...
else
...
end if##>>







{{fbdoc item="subsect" value="switch, select"}}
<<##switch (a) {
case 1:
...
break;
case 2:
case 3:
...
break;
default:
...
break;
}##<<>>##select case a
case 1
...


case 2, 3
...

case else
...

end select##>>












{{fbdoc item="subsect" value="string literals, zstrings"}}
<<##char *s = "Hello!";
char s[] = "Hello!";##<<>>##dim s as zstring ptr = @"Hello!"
dim s as zstring * 6+1 = "Hello!"##>>


{{fbdoc item="subsect" value="hello world"}}
<<###include <stdio.h>
int main() {
printf("Hello!\n");
return 0;
}##<<>>##print "Hello!"##




>>





{{fbdoc item="subsect" value="comments"}}
<<##""// foo""
""/* foo */""##<<>>##' foo
/' foo '/##>>


{{fbdoc item="subsect" value="compile-time checks"}}
<<###if //a//##
###elif //b//##
###else##
###endif##<<>>###if //a//##
###elseif //b//##
###else##
###endif##>>




{{fbdoc item="subsect" value="compile-time target system checks"}}
<<###ifdef _WIN32##<<>>###ifdef ""__FB_WIN32__""##>>

{{fbdoc item="subsect" value="module/header file names"}}
<<##foo.c, foo.h##<<>>##foo.bas, foo.bi##>>

{{fbdoc item="subsect" value="typical compiler command to create an executable"}}
<<##gcc foo.c -o foo##<<>>##fbc foo.bas##>>


{{fbdoc item="back" value="DocToc|Table of Contents"}}

//Last reviewed by ""MrSwiss"" on April 6, 2018 Note: changed Integer to Long (where needed)//
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