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Diffstat (limited to 'mfbt/tests/TestIntegerPrintfMacros.cpp')
| -rw-r--r-- | mfbt/tests/TestIntegerPrintfMacros.cpp | 1269 |
1 files changed, 1269 insertions, 0 deletions
diff --git a/mfbt/tests/TestIntegerPrintfMacros.cpp b/mfbt/tests/TestIntegerPrintfMacros.cpp new file mode 100644 index 000000000..475a88b63 --- /dev/null +++ b/mfbt/tests/TestIntegerPrintfMacros.cpp @@ -0,0 +1,1269 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "mozilla/Assertions.h" +#include "mozilla/IntegerPrintfMacros.h" // this must pick up <stdint.h> +#include "mozilla/Sprintf.h" + +#include <stddef.h> +#include <stdio.h> +#include <string.h> + +/* Output array and poisoning method shared by all tests. */ +static char gOutput[32]; + +static void +PoisonOutput() +{ + memset(gOutput, 0xDA, sizeof(gOutput)); +} + +/* + * The fprintf macros for signed integers are: + * + * PRIdN PRIdLEASTN PRIdFASTN PRIdMAX PRIdPTR + * PRIiN PRIiLEASTN PRIiFASTN PRIiMAX PRIiPTR + * + * In these names N is the width of the type as described in C99 7.18.1. + */ + +static void +TestPrintSigned8() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRId8, int8_t(-17)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-17")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIi8, int8_t(42)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "42")); +} + +static void +TestPrintSigned16() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRId16, int16_t(-289)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-289")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIi16, int16_t(728)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "728")); +} + +static void +TestPrintSigned32() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRId32, int32_t(-342178)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-342178")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIi32, int32_t(5719283)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "5719283")); +} + +static void +TestPrintSigned64() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRId64, int64_t(-INT64_C(432157943248732))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-432157943248732")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIi64, int64_t(INT64_C(325719232983))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "325719232983")); +} + +static void +TestPrintSignedN() +{ + TestPrintSigned8(); + TestPrintSigned16(); + TestPrintSigned32(); + TestPrintSigned64(); +} + +static void +TestPrintSignedLeast8() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIdLEAST8, int_least8_t(-17)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-17")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIiLEAST8, int_least8_t(42)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "42")); +} + +static void +TestPrintSignedLeast16() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIdLEAST16, int_least16_t(-289)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-289")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIiLEAST16, int_least16_t(728)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "728")); +} + +static void +TestPrintSignedLeast32() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIdLEAST32, int_least32_t(-342178)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-342178")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIiLEAST32, int_least32_t(5719283)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "5719283")); +} + +static void +TestPrintSignedLeast64() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIdLEAST64, int_least64_t(-INT64_C(432157943248732))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-432157943248732")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIiLEAST64, int_least64_t(INT64_C(325719232983))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "325719232983")); +} + +static void +TestPrintSignedLeastN() +{ + TestPrintSignedLeast8(); + TestPrintSignedLeast16(); + TestPrintSignedLeast32(); + TestPrintSignedLeast64(); +} + +static void +TestPrintSignedFast8() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIdFAST8, int_fast8_t(-17)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-17")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIiFAST8, int_fast8_t(42)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "42")); +} + +static void +TestPrintSignedFast16() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIdFAST16, int_fast16_t(-289)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-289")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIiFAST16, int_fast16_t(728)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "728")); +} + +static void +TestPrintSignedFast32() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIdFAST32, int_fast32_t(-342178)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-342178")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIiFAST32, int_fast32_t(5719283)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "5719283")); +} + +static void +TestPrintSignedFast64() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIdFAST64, int_fast64_t(-INT64_C(432157943248732))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-432157943248732")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIiFAST64, int_fast64_t(INT64_C(325719232983))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "325719232983")); +} + +static void +TestPrintSignedFastN() +{ + TestPrintSignedFast8(); + TestPrintSignedFast16(); + TestPrintSignedFast32(); + TestPrintSignedFast64(); +} + +static void +TestPrintSignedMax() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIdMAX, intmax_t(-INTMAX_C(432157943248732))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "-432157943248732")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIiMAX, intmax_t(INTMAX_C(325719232983))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "325719232983")); +} + +static void +TestPrintSignedPtr() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIdPTR, intptr_t(reinterpret_cast<void*>(12345678))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "12345678")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIiPTR, intptr_t(reinterpret_cast<void*>(87654321))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "87654321")); +} + +static void +TestPrintSigned() +{ + TestPrintSignedN(); + TestPrintSignedLeastN(); + TestPrintSignedFastN(); + TestPrintSignedMax(); + TestPrintSignedPtr(); +} + +/* + * The fprintf macros for unsigned integers are: + * + * PRIoN PRIoLEASTN PRIoFASTN PRIoMAX PRIoPTR + * PRIuN PRIuLEASTN PRIuFASTN PRIuMAX PRIuPTR + * PRIxN PRIxLEASTN PRIxFASTN PRIxMAX PRIxPTR + * PRIXN PRIXLEASTN PRIXFASTN PRIXMAX PRIXPTR + * + * In these names N is the width of the type as described in C99 7.18.1. + */ + +static void +TestPrintUnsigned8() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIo8, uint8_t(042)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "42")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIu8, uint8_t(17)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "17")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIx8, uint8_t(0x2a)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIX8, uint8_t(0xCD)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CD")); +} + +static void +TestPrintUnsigned16() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIo16, uint16_t(04242)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "4242")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIu16, uint16_t(1717)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "1717")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIx16, uint16_t(0x2a2a)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIX16, uint16_t(0xCDCD)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CDCD")); +} + +static void +TestPrintUnsigned32() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIo32, uint32_t(0424242)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "424242")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIu32, uint32_t(171717)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "171717")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIx32, uint32_t(0x2a2a2a)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a2a2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIX32, uint32_t(0xCDCDCD)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CDCDCD")); +} + +static void +TestPrintUnsigned64() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIo64, uint64_t(UINT64_C(0424242424242))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "424242424242")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIu64, uint64_t(UINT64_C(17171717171717171717))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "17171717171717171717")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIx64, uint64_t(UINT64_C(0x2a2a2a2a2a2a2a))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a2a2a2a2a2a2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIX64, uint64_t(UINT64_C(0xCDCDCDCDCDCD))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CDCDCDCDCDCD")); +} + +static void +TestPrintUnsignedN() +{ + TestPrintUnsigned8(); + TestPrintUnsigned16(); + TestPrintUnsigned32(); + TestPrintUnsigned64(); +} + +static void +TestPrintUnsignedLeast8() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIoLEAST8, uint_least8_t(042)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "42")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIuLEAST8, uint_least8_t(17)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "17")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIxLEAST8, uint_least8_t(0x2a)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIXLEAST8, uint_least8_t(0xCD)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CD")); +} + +static void +TestPrintUnsignedLeast16() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIoLEAST16, uint_least16_t(04242)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "4242")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIuLEAST16, uint_least16_t(1717)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "1717")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIxLEAST16, uint_least16_t(0x2a2a)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIXLEAST16, uint_least16_t(0xCDCD)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CDCD")); +} + +static void +TestPrintUnsignedLeast32() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIoLEAST32, uint_least32_t(0424242)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "424242")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIuLEAST32, uint_least32_t(171717)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "171717")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIxLEAST32, uint_least32_t(0x2a2a2a)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a2a2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIXLEAST32, uint_least32_t(0xCDCDCD)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CDCDCD")); +} + +static void +TestPrintUnsignedLeast64() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIoLEAST64, uint_least64_t(UINT64_C(0424242424242))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "424242424242")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIuLEAST64, + uint_least64_t(UINT64_C(17171717171717171717))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "17171717171717171717")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIxLEAST64, uint_least64_t(UINT64_C(0x2a2a2a2a2a2a2a))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a2a2a2a2a2a2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIXLEAST64, uint_least64_t(UINT64_C(0xCDCDCDCDCDCD))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CDCDCDCDCDCD")); +} + +static void +TestPrintUnsignedLeastN() +{ + TestPrintUnsignedLeast8(); + TestPrintUnsignedLeast16(); + TestPrintUnsignedLeast32(); + TestPrintUnsignedLeast64(); +} + +static void +TestPrintUnsignedFast8() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIoFAST8, uint_fast8_t(042)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "42")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIuFAST8, uint_fast8_t(17)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "17")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIxFAST8, uint_fast8_t(0x2a)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIXFAST8, uint_fast8_t(0xCD)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CD")); +} + +static void +TestPrintUnsignedFast16() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIoFAST16, uint_fast16_t(04242)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "4242")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIuFAST16, uint_fast16_t(1717)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "1717")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIxFAST16, uint_fast16_t(0x2a2a)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIXFAST16, uint_fast16_t(0xCDCD)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CDCD")); +} + +static void +TestPrintUnsignedFast32() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIoFAST32, uint_fast32_t(0424242)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "424242")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIuFAST32, uint_fast32_t(171717)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "171717")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIxFAST32, uint_fast32_t(0x2a2a2a)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a2a2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIXFAST32, uint_fast32_t(0xCDCDCD)); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CDCDCD")); +} + +static void +TestPrintUnsignedFast64() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIoFAST64, uint_fast64_t(UINT64_C(0424242424242))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "424242424242")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIuFAST64, + uint_fast64_t(UINT64_C(17171717171717171717))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "17171717171717171717")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIxFAST64, uint_fast64_t(UINT64_C(0x2a2a2a2a2a2a2a))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "2a2a2a2a2a2a2a")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIXFAST64, uint_fast64_t(UINT64_C(0xCDCDCDCDCDCD))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "CDCDCDCDCDCD")); +} + +static void +TestPrintUnsignedFastN() +{ + TestPrintUnsignedFast8(); + TestPrintUnsignedFast16(); + TestPrintUnsignedFast32(); + TestPrintUnsignedFast64(); +} + +static void +TestPrintUnsignedMax() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIoMAX, uintmax_t(UINTMAX_C(432157943248732))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "14220563454333534")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIuMAX, uintmax_t(UINTMAX_C(325719232983))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "325719232983")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIxMAX, uintmax_t(UINTMAX_C(327281321873))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "4c337ca791")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIXMAX, uintmax_t(UINTMAX_C(912389523743523))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "33DD03D75A323")); +} + +static void +TestPrintUnsignedPtr() +{ + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIoPTR, uintptr_t(reinterpret_cast<void*>(12345678))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "57060516")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIuPTR, uintptr_t(reinterpret_cast<void*>(87654321))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "87654321")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIxPTR, uintptr_t(reinterpret_cast<void*>(0x4c3a791))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "4c3a791")); + + PoisonOutput(); + SprintfLiteral(gOutput, "%" PRIXPTR, uintptr_t(reinterpret_cast<void*>(0xF328DB))); + MOZ_RELEASE_ASSERT(!strcmp(gOutput, "F328DB")); +} + +static void +TestPrintUnsigned() +{ + TestPrintUnsignedN(); + TestPrintUnsignedLeastN(); + TestPrintUnsignedFastN(); + TestPrintUnsignedMax(); + TestPrintUnsignedPtr(); +} + +static void +TestPrint() +{ + TestPrintSigned(); + TestPrintUnsigned(); +} + +/* + * The fscanf macros for signed integers are: + * + * SCNdN SCNdLEASTN SCNdFASTN SCNdMAX SCNdPTR + * SCNiN SCNiLEASTN SCNiFASTN SCNiMAX SCNiPTR + * + * In these names N is the width of the type as described in C99 7.18.1. + */ + +/* + * MSVC's scanf is insufficiently powerful to implement all the SCN* macros. + * Rather than support some subset of them, we instead support none of them. + * See the comment at the top of IntegerPrintfMacros.h. But in case we ever do + * support them, the following tests should adequately test implementation + * correctness. (Indeed, these tests *revealed* MSVC's limitations.) + * + * That said, even if MSVC ever picks up complete support, we still probably + * don't want to support these, because of the undefined-behavior issue noted + * further down in the comment atop IntegerPrintfMacros.h. + */ +#define SHOULD_TEST_SCANF_MACROS 0 + +#if SHOULD_TEST_SCANF_MACROS + +/* + * glibc header definitions for SCN{d,i,o,u,x}{,LEAST,FAST}8 use the "hh" length + * modifier, which is new in C99 (and C++11, by reference). We compile this + * file as C++11, so if "hh" is used in these macros, it's standard. But some + * versions of gcc wrongly think it isn't and warn about a "non-standard" + * modifier. And since these tests mostly exist to verify format-macro/type + * consistency (particularly through compiler warnings about incorrect formats), + * these warnings are unacceptable. So for now, compile tests for those macros + * only if we aren't compiling with gcc. + */ +#define SHOULD_TEST_8BIT_FORMAT_MACROS (!(MOZ_IS_GCC)) + +template<typename T> +union Input +{ + T mI; + unsigned char mPun[16]; +}; + +template<typename T> +static void +PoisonInput(Input<T>& aInput) +{ + memset(aInput.mPun, 0xDA, sizeof(aInput.mPun)); +} + +template<typename T> +static bool +ExtraBitsUntouched(const Input<T>& aInput) +{ + for (size_t i = sizeof(aInput.mI); i < sizeof(aInput); i++) { + if (aInput.mPun[i] != 0xDA) { + return false; + } + } + + return true; +} + +static void +TestScanSigned8() +{ +#if SHOULD_TEST_8BIT_FORMAT_MACROS + Input<int8_t> u; + + PoisonInput(u); + sscanf("-17", "%" SCNd8, &u.i); + MOZ_RELEASE_ASSERT(u.i == -17); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("042", "%" SCNi8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 042); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +#endif +} + +static void +TestScanSigned16() +{ + Input<int16_t> u; + + PoisonInput(u); + sscanf("-1742", "%" SCNd16, &u.i); + MOZ_RELEASE_ASSERT(u.i == -1742); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("04217", "%" SCNi16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 04217); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSigned32() +{ + Input<int32_t> u; + + PoisonInput(u); + sscanf("-174257", "%" SCNd32, &u.i); + MOZ_RELEASE_ASSERT(u.i == -174257); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("0423571", "%" SCNi32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0423571); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSigned64() +{ + Input<int64_t> u; + + PoisonInput(u); + sscanf("-17425238927232", "%" SCNd64, &u.i); + MOZ_RELEASE_ASSERT(u.i == -INT64_C(17425238927232)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("042333576571", "%" SCNi64, &u.i); + MOZ_RELEASE_ASSERT(u.i == INT64_C(042333576571)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSignedN() +{ + TestScanSigned8(); + TestScanSigned16(); + TestScanSigned32(); + TestScanSigned64(); +} + +static void +TestScanSignedLeast8() +{ +#if SHOULD_TEST_8BIT_FORMAT_MACROS + Input<int_least8_t> u; + + PoisonInput(u); + sscanf("-17", "%" SCNdLEAST8, &u.i); + MOZ_RELEASE_ASSERT(u.i == -17); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("042", "%" SCNiLEAST8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 042); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +#endif +} + +static void +TestScanSignedLeast16() +{ + Input<int_least16_t> u; + + PoisonInput(u); + sscanf("-1742", "%" SCNdLEAST16, &u.i); + MOZ_RELEASE_ASSERT(u.i == -1742); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("04217", "%" SCNiLEAST16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 04217); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSignedLeast32() +{ + Input<int_least32_t> u; + + PoisonInput(u); + sscanf("-174257", "%" SCNdLEAST32, &u.i); + MOZ_RELEASE_ASSERT(u.i == -174257); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("0423571", "%" SCNiLEAST32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0423571); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSignedLeast64() +{ + Input<int_least64_t> u; + + PoisonInput(u); + sscanf("-17425238927232", "%" SCNdLEAST64, &u.i); + MOZ_RELEASE_ASSERT(u.i == -INT64_C(17425238927232)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("042333576571", "%" SCNiLEAST64, &u.i); + MOZ_RELEASE_ASSERT(u.i == INT64_C(042333576571)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSignedLeastN() +{ + TestScanSignedLeast8(); + TestScanSignedLeast16(); + TestScanSignedLeast32(); + TestScanSignedLeast64(); +} + +static void +TestScanSignedFast8() +{ +#if SHOULD_TEST_8BIT_FORMAT_MACROS + Input<int_fast8_t> u; + + PoisonInput(u); + sscanf("-17", "%" SCNdFAST8, &u.i); + MOZ_RELEASE_ASSERT(u.i == -17); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("042", "%" SCNiFAST8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 042); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +#endif +} + +static void +TestScanSignedFast16() +{ + Input<int_fast16_t> u; + + PoisonInput(u); + sscanf("-1742", "%" SCNdFAST16, &u.i); + MOZ_RELEASE_ASSERT(u.i == -1742); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("04217", "%" SCNiFAST16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 04217); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSignedFast32() +{ + Input<int_fast32_t> u; + + PoisonInput(u); + sscanf("-174257", "%" SCNdFAST32, &u.i); + MOZ_RELEASE_ASSERT(u.i == -174257); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("0423571", "%" SCNiFAST32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0423571); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSignedFast64() +{ + Input<int_fast64_t> u; + + PoisonInput(u); + sscanf("-17425238927232", "%" SCNdFAST64, &u.i); + MOZ_RELEASE_ASSERT(u.i == -INT64_C(17425238927232)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("042333576571", "%" SCNiFAST64, &u.i); + MOZ_RELEASE_ASSERT(u.i == INT64_C(042333576571)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSignedFastN() +{ + TestScanSignedFast8(); + TestScanSignedFast16(); + TestScanSignedFast32(); + TestScanSignedFast64(); +} + +static void +TestScanSignedMax() +{ + Input<intmax_t> u; + + PoisonInput(u); + sscanf("-432157943248732", "%" SCNdMAX, &u.i); + MOZ_RELEASE_ASSERT(u.i == -INTMAX_C(432157943248732)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("04233357236571", "%" SCNiMAX, &u.i); + MOZ_RELEASE_ASSERT(u.i == INTMAX_C(04233357236571)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSignedPtr() +{ + Input<intptr_t> u; + + PoisonInput(u); + sscanf("12345678", "%" SCNdPTR, &u.i); + MOZ_RELEASE_ASSERT(u.i == intptr_t(reinterpret_cast<void*>(12345678))); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("04233357236", "%" SCNiPTR, &u.i); + MOZ_RELEASE_ASSERT(u.i == intptr_t(reinterpret_cast<void*>(04233357236))); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanSigned() +{ + TestScanSignedN(); + TestScanSignedLeastN(); + TestScanSignedFastN(); + TestScanSignedMax(); + TestScanSignedPtr(); +} + +/* + * The fscanf macros for unsigned integers are: + * + * SCNoN SCNoLEASTN SCNoFASTN SCNoMAX SCNoPTR + * SCNuN SCNuLEASTN SCNuFASTN SCNuMAX SCNuPTR + * SCNxN SCNxLEASTN SCNxFASTN SCNxMAX SCNxPTR + * + * In these names N is the width of the type as described in C99 7.18.1. + */ + +static void +TestScanUnsigned8() +{ +#if SHOULD_TEST_8BIT_FORMAT_MACROS + Input<uint8_t> u; + + PoisonInput(u); + sscanf("17", "%" SCNo8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 017); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("42", "%" SCNu8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 42); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("2A", "%" SCNx8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0x2A); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +#endif +} + +static void +TestScanUnsigned16() +{ + Input<uint16_t> u; + + PoisonInput(u); + sscanf("1742", "%" SCNo16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 01742); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("4217", "%" SCNu16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 4217); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("2ABC", "%" SCNx16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0x2ABC); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsigned32() +{ + Input<uint32_t> u; + + PoisonInput(u); + sscanf("17421742", "%" SCNo32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 017421742); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("4217867", "%" SCNu32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 4217867); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("2ABCBEEF", "%" SCNx32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0x2ABCBEEF); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsigned64() +{ + Input<uint64_t> u; + + PoisonInput(u); + sscanf("17421742173", "%" SCNo64, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINT64_C(017421742173)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("421786713579", "%" SCNu64, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINT64_C(421786713579)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("DEADBEEF7457E", "%" SCNx64, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINT64_C(0xDEADBEEF7457E)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsignedN() +{ + TestScanUnsigned8(); + TestScanUnsigned16(); + TestScanUnsigned32(); + TestScanUnsigned64(); +} + +static void +TestScanUnsignedLeast8() +{ +#if SHOULD_TEST_8BIT_FORMAT_MACROS + Input<uint_least8_t> u; + + PoisonInput(u); + sscanf("17", "%" SCNoLEAST8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 017); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("42", "%" SCNuLEAST8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 42); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("2A", "%" SCNxLEAST8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0x2A); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +#endif +} + +static void +TestScanUnsignedLeast16() +{ + Input<uint_least16_t> u; + + PoisonInput(u); + sscanf("1742", "%" SCNoLEAST16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 01742); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("4217", "%" SCNuLEAST16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 4217); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("2ABC", "%" SCNxLEAST16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0x2ABC); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsignedLeast32() +{ + Input<uint_least32_t> u; + + PoisonInput(u); + sscanf("17421742", "%" SCNoLEAST32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 017421742); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("4217867", "%" SCNuLEAST32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 4217867); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("2ABCBEEF", "%" SCNxLEAST32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0x2ABCBEEF); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsignedLeast64() +{ + Input<uint_least64_t> u; + + PoisonInput(u); + sscanf("17421742173", "%" SCNoLEAST64, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINT64_C(017421742173)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("421786713579", "%" SCNuLEAST64, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINT64_C(421786713579)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("DEADBEEF7457E", "%" SCNxLEAST64, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINT64_C(0xDEADBEEF7457E)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsignedLeastN() +{ + TestScanUnsignedLeast8(); + TestScanUnsignedLeast16(); + TestScanUnsignedLeast32(); + TestScanUnsignedLeast64(); +} + +static void +TestScanUnsignedFast8() +{ +#if SHOULD_TEST_8BIT_FORMAT_MACROS + Input<uint_fast8_t> u; + + PoisonInput(u); + sscanf("17", "%" SCNoFAST8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 017); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("42", "%" SCNuFAST8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 42); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("2A", "%" SCNxFAST8, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0x2A); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +#endif +} + +static void +TestScanUnsignedFast16() +{ + Input<uint_fast16_t> u; + + PoisonInput(u); + sscanf("1742", "%" SCNoFAST16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 01742); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("4217", "%" SCNuFAST16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 4217); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("2ABC", "%" SCNxFAST16, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0x2ABC); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsignedFast32() +{ + Input<uint_fast32_t> u; + + PoisonInput(u); + sscanf("17421742", "%" SCNoFAST32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 017421742); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("4217867", "%" SCNuFAST32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 4217867); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("2ABCBEEF", "%" SCNxFAST32, &u.i); + MOZ_RELEASE_ASSERT(u.i == 0x2ABCBEEF); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsignedFast64() +{ + Input<uint_fast64_t> u; + + PoisonInput(u); + sscanf("17421742173", "%" SCNoFAST64, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINT64_C(017421742173)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("421786713579", "%" SCNuFAST64, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINT64_C(421786713579)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("DEADBEEF7457E", "%" SCNxFAST64, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINT64_C(0xDEADBEEF7457E)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsignedFastN() +{ + TestScanUnsignedFast8(); + TestScanUnsignedFast16(); + TestScanUnsignedFast32(); + TestScanUnsignedFast64(); +} + +static void +TestScanUnsignedMax() +{ + Input<uintmax_t> u; + + PoisonInput(u); + sscanf("14220563454333534", "%" SCNoMAX, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINTMAX_C(432157943248732)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("432157943248732", "%" SCNuMAX, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINTMAX_C(432157943248732)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("4c337ca791", "%" SCNxMAX, &u.i); + MOZ_RELEASE_ASSERT(u.i == UINTMAX_C(327281321873)); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsignedPtr() +{ + Input<uintptr_t> u; + + PoisonInput(u); + sscanf("57060516", "%" SCNoPTR, &u.i); + MOZ_RELEASE_ASSERT(u.i == uintptr_t(reinterpret_cast<void*>(12345678))); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("87654321", "%" SCNuPTR, &u.i); + MOZ_RELEASE_ASSERT(u.i == uintptr_t(reinterpret_cast<void*>(87654321))); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); + + PoisonInput(u); + sscanf("4c3a791", "%" SCNxPTR, &u.i); + MOZ_RELEASE_ASSERT(u.i == uintptr_t(reinterpret_cast<void*>(0x4c3a791))); + MOZ_RELEASE_ASSERT(ExtraBitsUntouched(u)); +} + +static void +TestScanUnsigned() +{ + TestScanUnsignedN(); + TestScanUnsignedLeastN(); + TestScanUnsignedFastN(); + TestScanUnsignedMax(); + TestScanUnsignedPtr(); +} + +static void +TestScan() +{ + TestScanSigned(); + TestScanUnsigned(); +} + +#endif /* SHOULD_TEST_SCANF_MACROS */ + +int +main() +{ + TestPrint(); +#if SHOULD_TEST_SCANF_MACROS + TestScan(); +#endif + return 0; +} |