Skip to content

fallthrough comments #792

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Dec 21, 2017
Merged

fallthrough comments #792

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 3 additions & 0 deletions inst/include/Rcpp/internal/wrap.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -128,10 +128,13 @@ namespace Rcpp {
switch (size - i) {
case 3:
start[i] = first[i]; i++;
// fallthrough
case 2:
start[i] = first[i]; i++;
// fallthrough
case 1:
start[i] = first[i]; i++;
// fallthrough
case 0:
default:
{}
Expand Down
76 changes: 38 additions & 38 deletions inst/include/Rcpp/macros/unroll.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -44,46 +44,46 @@ switch (n - i){ \
}


#define RCPP_LOOP_UNROLL(TARGET,SOURCE) \
R_xlen_t __trip_count = n >> 2 ; \
R_xlen_t i = 0 ; \
for ( ; __trip_count > 0 ; --__trip_count) { \
TARGET[i] = SOURCE[i] ; i++ ; \
TARGET[i] = SOURCE[i] ; i++ ; \
TARGET[i] = SOURCE[i] ; i++ ; \
TARGET[i] = SOURCE[i] ; i++ ; \
} \
switch (n - i){ \
case 3: \
TARGET[i] = SOURCE[i] ; i++ ; \
case 2: \
TARGET[i] = SOURCE[i] ; i++ ; \
case 1: \
TARGET[i] = SOURCE[i] ; i++ ; \
case 0: \
default: \
{} \
#define RCPP_LOOP_UNROLL(TARGET,SOURCE) \
R_xlen_t __trip_count = n >> 2 ; \
R_xlen_t i = 0 ; \
for ( ; __trip_count > 0 ; --__trip_count) { \
TARGET[i] = SOURCE[i] ; i++ ; \
TARGET[i] = SOURCE[i] ; i++ ; \
TARGET[i] = SOURCE[i] ; i++ ; \
TARGET[i] = SOURCE[i] ; i++ ; \
} \
switch (n - i){ \
case 3: \
TARGET[i] = SOURCE[i] ; i++ ; /* fallthrough */ \
case 2: \
TARGET[i] = SOURCE[i] ; i++ ; /* fallthrough */ \
case 1: \
TARGET[i] = SOURCE[i] ; i++ ; /* fallthrough */ \
case 0: \
default: \
{} \
}

#define RCPP_LOOP_UNROLL_LHSFUN(TARGET,FUN,SOURCE) \
R_xlen_t __trip_count = n >> 2 ; \
R_xlen_t i = 0 ; \
for ( ; __trip_count > 0 ; --__trip_count) { \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
} \
switch (n - i){ \
case 3: \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
case 2: \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
case 1: \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
case 0: \
default: \
{} \
#define RCPP_LOOP_UNROLL_LHSFUN(TARGET,FUN,SOURCE) \
R_xlen_t __trip_count = n >> 2 ; \
R_xlen_t i = 0 ; \
for ( ; __trip_count > 0 ; --__trip_count) { \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; \
} \
switch (n - i){ \
case 3: \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; /* fallthrough */ \
case 2: \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; /* fallthrough */ \
case 1: \
TARGET[FUN(i)] = SOURCE[i] ; i++ ; /* fallthrough */ \
case 0: \
default: \
{} \
}

#endif