banan-os/userspace/test/test.cpp

32 lines
499 B
C++

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define ERROR(msg) { perror(msg); return 1; }
#define BUF_SIZE 1024
int main()
{
FILE* fp = fopen("/usr/include/stdio.h", "r");
if (fp == NULL)
ERROR("fopen");
char* buffer = (char*)malloc(BUF_SIZE);
if (buffer == NULL)
ERROR("malloc");
for (;;)
{
size_t n_read = fread(buffer, 1, BUF_SIZE - 1, fp);
if (n_read == 0)
break;
buffer[n_read] = '\0';
printf("%s", buffer);
}
free(buffer);
fclose(fp);
return 0;
}