syntax errors in C++ - c++

Question

I'm new in c++. my friend just gave this code to me but it doesn't work and sends many syntax errors like : error C2146,error C2734,... which I'm not familiar so I thought it should be better to ask stack overflow.
pixel.cpp:
#include<iostream>
#include"a.h"
using namespace std;
extern const unsigned uint_8 microsoftSansSerif_8ptBitmaps[];
extern const unsigned FONT_INFO microsoftSansSerif_8ptFontInfo;
extern const FONT_CHAR_INFO microsoftSansSerif_8ptDescriptors[];
int main()
{
getchar();
}
a.h :
// Font data for Microsoft Sans Serif 8pt
const unsigned uint_8 microsoftSansSerif_8ptBitmaps[] = {
0b11110000,
0b00010000,
0b00101000,
0b00101000,
0b01000100,
0b01000100,
0b01111100,
0b10000010,
0b10000010,
};
const FONT_CHAR_INFO microsoftSansSerif_8ptDescriptors[] =
{
{7, 0}, // A
};
const FONT_INFO microsoftSansSerif_8ptFontInfo =
{
2, // Character height
'A', // Start character
'A', // End character
2, // Width, in pixels, of space character
microsoftSansSerif_8ptDescriptors, // Character descriptor array
microsoftSansSerif_8ptBitmaps, // Character bitmap array
};
errors :
a.h(2) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
a.h(2) : error C2146: syntax error : missing ';' before identifier 'microsoftSansSerif_8ptBitmaps'
a.h(3) : error C2059: syntax error : 'bad suffix on number'
a.h(3) : error C2146: syntax error : missing '}' before identifier 'b11110000'
a.h(4) : error C2059: syntax error : 'constant'

Answer 1

Some problems:
uint_8, FONT_INFO, and FONT_CHAR_INFO are not declared anywhere.
Unnecessarily adding unsigned before custom types is an error.
Binary literals require compiling in c++11 mode, and a compiler which supports that.
To use getchar, you need to include <cstdio>.
Generally, you should put the extern declarations in the .h file and the definitions in the .cpp, not the other way around.