[C/C++] 判斷檔案是否存在 file_exists

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<?php
if(file_exists("files/appleboy.c")) {
    echo "File found!";
}
?>

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bool file_exists(const char * filename)
{
    if (FILE * file = fopen(filename, "r"))
    {
        fclose(file);
        return true;
    }
    return false;
}

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std::fstream foo;

foo.open("bar");

if(foo.is_open() == true)
     std::cout << "Exist";
else 
     std::cout << "Doesn't Exist";

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#include<sys/stat.h>
int file_exists (char * fileName)
{
   struct stat buf;
   int i = stat ( fileName, &buf );
     /* File found */
     if ( i == 0 )
     {
       return 1;
     }
     return 0;

}