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Support runtime width specification

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jamboree
2015-06-04 13:59:37 +08:00
parent d311927c64
commit 54a6cb34c7
3 changed files with 95 additions and 7 deletions
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58
test/format-test.cc
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@@ -902,6 +902,64 @@ TEST(FormatterTest, Width) {
EXPECT_EQ("test ", format("{0:13}", TestString("test")));
}
TEST(FormatterTest, RuntimeWidth) {
char format_str[BUFFER_SIZE];
safe_sprintf(format_str, "{0:{%u", UINT_MAX);
increment(format_str + 4);
EXPECT_THROW_MSG(format(format_str, 0), FormatError, "number is too big");
std::size_t size = std::strlen(format_str);
format_str[size] = '}';
format_str[size + 1] = 0;
EXPECT_THROW_MSG(format(format_str, 0), FormatError, "number is too big");
format_str[size + 1] = '}';
format_str[size + 2] = 0;
EXPECT_THROW_MSG(format(format_str, 0), FormatError, "number is too big");
EXPECT_THROW_MSG(format("{0:{", 0),
FormatError, "invalid format string");
EXPECT_THROW_MSG(format("{0:{}", 0),
FormatError, "cannot switch from manual to automatic argument indexing");
EXPECT_THROW_MSG(format("{0:{x}}", 0),
FormatError, "invalid format string");
EXPECT_THROW_MSG(format("{0:{1}}", 0),
FormatError, "argument index out of range");
EXPECT_THROW_MSG(format("{0:{0:}}", 0),
FormatError, "invalid format string");
EXPECT_THROW_MSG(format("{0:{1}}", 0, -1),
FormatError, "negative width");
EXPECT_THROW_MSG(format("{0:{1}}", 0, (INT_MAX + 1u)),
FormatError, "number is too big");
EXPECT_THROW_MSG(format("{0:{1}}", 0, -1l),
FormatError, "negative width");
if (fmt::internal::check(sizeof(long) > sizeof(int))) {
long value = INT_MAX;
EXPECT_THROW_MSG(format("{0:{1}}", 0, (value + 1)),
FormatError, "number is too big");
}
EXPECT_THROW_MSG(format("{0:{1}}", 0, (INT_MAX + 1ul)),
FormatError, "number is too big");
EXPECT_THROW_MSG(format("{0:{1}}", 0, '0'),
FormatError, "width is not integer");
EXPECT_THROW_MSG(format("{0:{1}}", 0, 0.0),
FormatError, "width is not integer");
EXPECT_EQ(" -42", format("{0:{1}}", -42, 4));
EXPECT_EQ(" 42", format("{0:{1}}", 42u, 5));
EXPECT_EQ(" -42", format("{0:{1}}", -42l, 6));
EXPECT_EQ(" 42", format("{0:{1}}", 42ul, 7));
EXPECT_EQ(" -42", format("{0:{1}}", -42ll, 6));
EXPECT_EQ(" 42", format("{0:{1}}", 42ull, 7));
EXPECT_EQ(" -1.23", format("{0:{1}}", -1.23, 8));
EXPECT_EQ(" -1.23", format("{0:{1}}", -1.23l, 9));
EXPECT_EQ(" 0xcafe", format("{0:{1}}", reinterpret_cast<void*>(0xcafe), 10));
EXPECT_EQ("x ", format("{0:{1}}", 'x', 11));
EXPECT_EQ("str ", format("{0:{1}}", "str", 12));
EXPECT_EQ("test ", format("{0:{1}}", TestString("test"), 13));
}
TEST(FormatterTest, Precision) {
char format_str[BUFFER_SIZE];
safe_sprintf(format_str, "{0:.%u", UINT_MAX);