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Merge pull request #134 from CarterLi/master

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Improve behaviors when disabling exceptions
This commit is contained in:
Victor Zverovich 2015-03-15 06:21:28 -07:00
commit e65e05b960
1 changed files with 23 additions and 5 deletions
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28
format.cc
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@ -66,10 +66,26 @@ using fmt::internal::Arg;
#ifndef FMT_THROW
# if FMT_EXCEPTIONS
# define FMT_THROW(x) throw x
# define FMT_RETURN_AFTER_THROW(x)
# else
# define FMT_THROW(x) assert(false)
# define FMT_RETURN_AFTER_THROW(x) return x
# ifndef NDEBUG
# define FMT_THROW(x) assert(false && #x)
# elif defined _MSC_VER
# define FMT_THROW(x) __assume(0)
# elif defined __clang__ || FMT_GCC_VERSION >= 405
# define FMT_THROW(x) __builtin_unreachable()
# else
# define FMT_THROW(x) std::abort()
# endif
# endif
#endif
#ifndef FMT_NORETURN
# if defined __GNUC__ || defined __clang__
# define FMT_NORETURN __attribute__((__noreturn__))
# elif defined _MSC_VER
# define FMT_NORETURN __declspec(noreturn)
# else
# define FMT_NORETURN
# endif
#endif
@ -286,9 +302,9 @@ class WidthHandler : public fmt::internal::ArgVisitor<WidthHandler, unsigned> {
public:
explicit WidthHandler(fmt::FormatSpec &spec) : spec_(spec) {}
FMT_NORETURN
unsigned visit_unhandled_arg() {
FMT_THROW(fmt::FormatError("width is not integer"));
FMT_RETURN_AFTER_THROW(0);
}
template <typename T>
@ -308,9 +324,9 @@ class WidthHandler : public fmt::internal::ArgVisitor<WidthHandler, unsigned> {
class PrecisionHandler :
public fmt::internal::ArgVisitor<PrecisionHandler, int> {
public:
FMT_NORETURN
unsigned visit_unhandled_arg() {
FMT_THROW(fmt::FormatError("precision is not integer"));
FMT_RETURN_AFTER_THROW(0);
}
template <typename T>
@ -466,6 +482,7 @@ const uint64_t fmt::internal::BasicData<T>::POWERS_OF_10_64[] = {
};
FMT_FUNC void fmt::internal::report_unknown_type(char code, const char *type) {
(void)type;
if (std::isprint(static_cast<unsigned char>(code))) {
FMT_THROW(fmt::FormatError(
fmt::format("unknown format code '{}' for {}", code, type)));
@ -740,6 +757,7 @@ void fmt::internal::PrintfFormatter<Char>::parse_flags(
template <typename Char>
Arg fmt::internal::PrintfFormatter<Char>::get_arg(
const Char *s, unsigned arg_index) {
(void)s;
const char *error = 0;
Arg arg = arg_index == UINT_MAX ?
next_arg(error) : FormatterBase::get_arg(arg_index - 1, error);