Anonymous user
Bitmap/Write a PPM file: Difference between revisions
→{{header|C++}}: C++ entry
(→{{header|C++}}: C++ entry) |
|||
Line 224:
(void) fwrite(img->buf, sizeof(pixel), n, fd);
(void) fflush(fd);
}</lang>
=={{header|C++}}==
{{trans|C}}
<lang cpp>#include <fstream>
#include <cstdio>
int main() {
constexpr auto dimx = 800u, dimy = 800u;
using namespace std;
ofstream ofs("first.ppm", ios_base::out | ios_base::binary);
ofs << "P6" << endl << dimx << ' ' << dimy << endl << "255" << endl;
static char color[3];
for (auto j = 0u; j < dimy; ++j)
for (auto i = 0u; i < dimx; ++i) {
color[0] = i % 256; // red
color[1] = j % 256; // green
color[2] = (i * j) % 256; // blue
ofs.write(color, sizeof(color));
}
ofs.close();
return EXIT_SUCCESS;
}</lang>
| |||