From cc24a339d8c0517259084b5c178d784626ba965c Mon Sep 17 00:00:00 2001 From: ImJezze Date: Sun, 21 Feb 2016 11:48:45 +0100 Subject: Merge remote-tracking branch 'refs/remotes/mamedev/master' Second attempt --- 3rdparty/rapidjson/test/unittest/itoatest.cpp | 158 ++++++++++++++++++++++++++ 1 file changed, 158 insertions(+) create mode 100644 3rdparty/rapidjson/test/unittest/itoatest.cpp (limited to '3rdparty/rapidjson/test/unittest/itoatest.cpp') diff --git a/3rdparty/rapidjson/test/unittest/itoatest.cpp b/3rdparty/rapidjson/test/unittest/itoatest.cpp new file mode 100644 index 00000000000..9c3107d4178 --- /dev/null +++ b/3rdparty/rapidjson/test/unittest/itoatest.cpp @@ -0,0 +1,158 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#include "unittest.h" +#include "rapidjson/internal/itoa.h" + +#ifdef __GNUC__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(type-limits) +#endif + +using namespace rapidjson::internal; + +template +struct Traits { +}; + +template <> +struct Traits { + enum { kBufferSize = 11 }; + enum { kMaxDigit = 10 }; + static uint32_t Negate(uint32_t x) { return x; } +}; + +template <> +struct Traits { + enum { kBufferSize = 12 }; + enum { kMaxDigit = 10 }; + static int32_t Negate(int32_t x) { return -x; } +}; + +template <> +struct Traits { + enum { kBufferSize = 21 }; + enum { kMaxDigit = 20 }; + static uint64_t Negate(uint64_t x) { return x; } +}; + +template <> +struct Traits { + enum { kBufferSize = 22 }; + enum { kMaxDigit = 20 }; + static int64_t Negate(int64_t x) { return -x; } +}; + +template +static void VerifyValue(T value, void(*f)(T, char*), char* (*g)(T, char*)) { + char buffer1[Traits::kBufferSize]; + char buffer2[Traits::kBufferSize]; + + f(value, buffer1); + *g(value, buffer2) = '\0'; + + + EXPECT_STREQ(buffer1, buffer2); +} + +template +static void Verify(void(*f)(T, char*), char* (*g)(T, char*)) { + // Boundary cases + VerifyValue(0, f, g); + VerifyValue(std::numeric_limits::min(), f, g); + VerifyValue(std::numeric_limits::max(), f, g); + + // 2^n - 1, 2^n, 10^n - 1, 10^n until overflow + for (uint32_t power = 2; power <= 10; power += 8) { + T i = 1, last; + do { + VerifyValue(i - 1, f, g); + VerifyValue(i, f, g); + if (std::numeric_limits::min() < 0) { + VerifyValue(Traits::Negate(i), f, g); + VerifyValue(Traits::Negate(i + 1), f, g); + } + last = i; + i *= power; + } while (last < i); + } +} + +static void u32toa_naive(uint32_t value, char* buffer) { + char temp[10]; + char *p = temp; + do { + *p++ = char(value % 10) + '0'; + value /= 10; + } while (value > 0); + + do { + *buffer++ = *--p; + } while (p != temp); + + *buffer = '\0'; +} + +static void i32toa_naive(int32_t value, char* buffer) { + uint32_t u = static_cast(value); + if (value < 0) { + *buffer++ = '-'; + u = ~u + 1; + } + u32toa_naive(u, buffer); +} + +static void u64toa_naive(uint64_t value, char* buffer) { + char temp[20]; + char *p = temp; + do { + *p++ = char(value % 10) + '0'; + value /= 10; + } while (value > 0); + + do { + *buffer++ = *--p; + } while (p != temp); + + *buffer = '\0'; +} + +static void i64toa_naive(int64_t value, char* buffer) { + uint64_t u = static_cast(value); + if (value < 0) { + *buffer++ = '-'; + u = ~u + 1; + } + u64toa_naive(u, buffer); +} + +TEST(itoa, u32toa) { + Verify(u32toa_naive, u32toa); +} + +TEST(itoa, i32toa) { + Verify(i32toa_naive, i32toa); +} + +TEST(itoa, u64toa) { + Verify(u64toa_naive, u64toa); +} + +TEST(itoa, i64toa) { + Verify(i64toa_naive, i64toa); +} + +#ifdef __GNUC__ +RAPIDJSON_DIAG_POP +#endif -- cgit v1.2.3-70-g09d2