#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <inttypes.h>

char* get_file_contents(const char* filename)
{
	FILE *fp = fopen(filename, "rb");
	if (fp)
	{
		fseek(fp, 0, SEEK_END);
		int count = ftell(fp);
		char* contents = new char[count];
		rewind(fp);
		fread(contents, 1, count, fp);
		fclose(fp);
		return contents;
	}
	throw errno;
}

#define READA(name, type, size) \
	type name[size]; \
	read_##type(name, size); \
	printf(#name " = "); \
	dump(name, size); \
	puts("");
#define READ(name, type) \
	type name; \
	read_##type(&name, 1); \
	printf(#name " = "); \
	dump(name); \
	puts("");
typedef int32_t Int32;

struct reader
{
	char* data;
	int at = 0;
	
	void read_Int32(int32_t* out, int count)
	{
		memcpy(out, &data[at], 4);
		at += 4;
	}
	void read_char(char* out, int count)
	{
		memcpy(out, &data[at], count);
		at += count;
	}
	void dump(int32_t v)
	{
		printf("%d", v);
	}
	void dump(char* v, int count)
	{
		for (int i = 0; i < count; i++)
			fputc(v[i], stdout);
	}
};

struct myreader : reader
{
	myreader()
	{
		data = get_file_contents("loop.wav");
		READA(magic, char, 4);
		READ(size, Int32);
	}
};

int main()
{
	myreader();
}