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Adding sentinel support to fmt::join(). (#1689)

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This commit is contained in:
Barry Revzin
2020-05-18 08:31:01 -05:00
committed by GitHub
parent 6d66de3805
commit c66aae1652
3 changed files with 39 additions and 19 deletions
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14
test/ranges-test.cc
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@@ -139,3 +139,17 @@ TEST(RangesTest, FormatStringLike) {
EXPECT_EQ("foo", fmt::format("{}", string_like()));
}
#endif // FMT_USE_STRING_VIEW
struct zstring_sentinel {};
bool operator==(const char* p, zstring_sentinel) { return *p == '\0'; }
bool operator!=(const char* p, zstring_sentinel) { return *p != '\0'; }
struct zstring {
const char* p;
const char* begin() const { return p; }
zstring_sentinel end() const { return {}; }
};
TEST(RangesTest, JoinSentinel) {
zstring hello{"hello"};
EXPECT_EQ("{'h', 'e', 'l', 'l', 'o'}", fmt::format("{}", hello));
EXPECT_EQ("h_e_l_l_o", fmt::format("{}", fmt::join(hello, "_")));
}