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learnmoderncpp-tutorial/headers/10-smartptr2.cpp at main · cpp-tutor/learnmoderncpp-tutorial · GitHub
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10-smartptr2.cpp
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//
10-smartptr2.cpp : encapsulate a FILE* in a unique_ptr
#
include
<
iostream
>
#
include
<
cstdio
>
#
include
<
memory
>
using
namespace
std
;
int
main
(
int
argc,
const
char
*argv[]) {
if
(argc !=
2
) {
cerr <<
"
Syntax:
"
<< argv[
0
] <<
"
<filename>
\n
"
;
return
1
;
}
unique_ptr<
FILE
,
decltype
(&fclose)> fp{
fopen
(argv[
1
],
"
rb
"
), fclose };
if
(fp) {
int
c;
while
((c =
fgetc
(fp.
get
())) !=
EOF
) {
putchar
(c);
}
}
}
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