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Fix a UB

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This commit is contained in:
Victor Zverovich 2020-06-08 06:32:11 -07:00
parent d3107f8551
commit f2c9cb6244
1 changed files with 5 additions and 1 deletions
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6
include/fmt/format.h
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@ -2550,7 +2550,11 @@ struct format_handler : detail::error_handler {
int on_arg_id() { return parse_context.next_arg_id(); } int on_arg_id() { return parse_context.next_arg_id(); }
int on_arg_id(int id) { return parse_context.check_arg_id(id), id; } int on_arg_id(int id) { return parse_context.check_arg_id(id), id; }
int on_arg_id(basic_string_view<Char> id) { return context.arg_id(id); } int on_arg_id(basic_string_view<Char> id) {
int arg_id = context.arg_id(id);
if (arg_id < 0) on_error("argument not found");
return arg_id;
}
void on_replacement_field(int id, const Char* p) { void on_replacement_field(int id, const Char* p) {
auto arg = get_arg(context, id); auto arg = get_arg(context, id);