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Correct buffer growth when formatting time (#367)

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This commit is contained in:
Victor Zverovich 2016-08-04 08:34:07 -07:00
parent 9dbb60c4c8
commit 1a23f9c274
4 changed files with 31 additions and 11 deletions
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2
fmt/time.h
View File

@ -37,7 +37,7 @@ void format(BasicFormatter<char, ArgFormatter> &f,
break; break;
} }
const std::size_t MIN_GROWTH = 10; const std::size_t MIN_GROWTH = 10;
buffer.reserve(buffer.capacity() + size > MIN_GROWTH ? size : MIN_GROWTH); buffer.reserve(buffer.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH));
} }
format_str = end + 1; format_str = end + 1;
} }

1
test/CMakeLists.txt
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@ -86,6 +86,7 @@ add_fmt_test(format-impl-test)
add_fmt_test(ostream-test) add_fmt_test(ostream-test)
add_fmt_test(printf-test) add_fmt_test(printf-test)
add_fmt_test(string-test) add_fmt_test(string-test)
add_fmt_test(time-test)
add_fmt_test(util-test mock-allocator.h) add_fmt_test(util-test mock-allocator.h)
add_fmt_test(macro-test) add_fmt_test(macro-test)
add_fmt_test(custom-formatter-test) add_fmt_test(custom-formatter-test)

10
test/format-test.cc
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@ -60,7 +60,6 @@ lconv *localeconv() {
} }
#include "fmt/format.h" #include "fmt/format.h"
#include "fmt/time.h"
#include "util.h" #include "util.h"
#include "mock-allocator.h" #include "mock-allocator.h"
@ -1551,15 +1550,6 @@ TEST(FormatTest, Variadic) {
EXPECT_EQ(L"abc1", format(L"{}c{}", L"ab", 1)); EXPECT_EQ(L"abc1", format(L"{}c{}", L"ab", 1));
} }
TEST(FormatTest, Time) {
std::tm tm = std::tm();
tm.tm_year = 116;
tm.tm_mon = 3;
tm.tm_mday = 25;
EXPECT_EQ("The date is 2016-04-25.",
fmt::format("The date is {:%Y-%m-%d}.", tm));
}
template <typename T> template <typename T>
std::string str(const T &value) { std::string str(const T &value) {
return fmt::format("{}", value); return fmt::format("{}", value);

29
test/time-test.cc Normal file
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@ -0,0 +1,29 @@
/*
Time formatting tests
Copyright (c) 2012 - 2016, Victor Zverovich
All rights reserved.
For the license information refer to format.h.
*/
#include "gmock/gmock.h"
#include "fmt/time.h"
TEST(TimeTest, Format) {
std::tm tm = std::tm();
tm.tm_year = 116;
tm.tm_mon = 3;
tm.tm_mday = 25;
EXPECT_EQ("The date is 2016-04-25.",
fmt::format("The date is {:%Y-%m-%d}.", tm));
}
TEST(TimeTest, GrowBuffer) {
std::string s = "{:";
for (int i = 0; i < 30; ++i)
s += "%c";
s += "}\n";
std::time_t t = std::time(0);
fmt::format(s, *std::localtime(&t));
}