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Workaround a bug in gcc 7.5 (#1912)

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Thanks Martin Janzen.
This commit is contained in:
Victor Zverovich 2020-10-04 08:36:55 -07:00 committed by Victor Zverovich
parent af8a180aed
commit 712abe40f2
1 changed files with 4 additions and 2 deletions
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6
include/fmt/core.h
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@ -910,7 +910,8 @@ template <typename Char> struct named_arg_info {
template <typename T, typename Char, size_t NUM_ARGS, size_t NUM_NAMED_ARGS>
struct arg_data {
// args_[0].named_args points to named_args_ to avoid bloating format_args.
T args_[1 + (NUM_ARGS != 0 ? NUM_ARGS : 1)];
// +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning.
T args_[1 + (NUM_ARGS != 0 ? NUM_ARGS : +1)];
named_arg_info<Char> named_args_[NUM_NAMED_ARGS];
template <typename... U>
@ -922,7 +923,8 @@ struct arg_data {
template <typename T, typename Char, size_t NUM_ARGS>
struct arg_data<T, Char, NUM_ARGS, 0> {
T args_[NUM_ARGS != 0 ? NUM_ARGS : 1];
// +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning.
T args_[NUM_ARGS != 0 ? NUM_ARGS : +1];
template <typename... U>
FMT_INLINE arg_data(const U&... init) : args_{init...} {}