parsing error

[Medvedev]

when i try to read the first byte from an EXE file it's give different
results
code:
FILE *me,*u;
char buf_me[1];
char buf_u[1];

me= fopen(argv[0],"rb");
u= fopen(argv[1],"rb+");

fread(buf_me,sizeof(char),1,me);
fread(buf_u,sizeof(char),1,u);

printf("%s\n",buf_me);
printf("%s\n",buf_u);

----
when you run this code and put EXE file as an argument , the program
will print
M
MM

why it double the byte in the second time

[Ian Collins]

Medvedev wrote:

when i try to read the first byte from an EXE file it's give different
results
code:
FILE *me,*u;
char buf_me[1];
char buf_u[1];

me= fopen(argv[0],"rb");
u= fopen(argv[1],"rb+");

fread(buf_me,sizeof(char),1,me);

sizeof(char) is one by definition.

fread(buf_u,sizeof(char),1,u);

printf("%s\n",buf_me);
printf("%s\n",buf_u);

These to lines invoke undefined behaviour, buf_me and buf_u are not null
terminated C style strings.

c.l.c is a better place for pure C questions.

--
Ian Collins.