| // Check that we can operate on files from /dev/fd. |
| // REQUIRES: dev-fd-fs |
| // REQUIRES: shell |
| |
| // Check reading from named pipes. We cat the input here instead of redirecting |
| // it to ensure that /dev/fd/0 is a named pipe, not just a redirected file. |
| // |
| // RUN: cat %s | %clang -x c /dev/fd/0 -E > %t |
| // RUN: FileCheck --check-prefix DEV-FD-INPUT < %t %s |
| // |
| // DEV-FD-INPUT: int x; |
| |
| |
| // Check writing to /dev/fd named pipes. We use cat here as before to ensure we |
| // get a named pipe. |
| // |
| // RUN: %clang -x c %s -E -o /dev/fd/1 | cat > %t |
| // RUN: FileCheck --check-prefix DEV-FD-FIFO-OUTPUT < %t %s |
| // |
| // DEV-FD-FIFO-OUTPUT: int x; |
| |
| |
| // Check writing to /dev/fd regular files. |
| // |
| // RUN: %clang -x c %s -E -o /dev/fd/1 > %t |
| // RUN: FileCheck --check-prefix DEV-FD-REG-OUTPUT < %t %s |
| // |
| // DEV-FD-REG-OUTPUT: int x; |
| |
| int x; |
