mirror of
https://github.com/jart/cosmopolitan.git
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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
472 lines
15 KiB
C
472 lines
15 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/errno.h"
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#include "libc/inttypes.h"
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#include "libc/limits.h"
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#include "libc/math.h"
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#include "libc/mem/mem.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/internal.h"
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#include "libc/str/str.h"
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#include "libc/testlib/testlib.h"
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#define sscanf1(STR, FMT) \
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({ \
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errno = 0; \
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int128_t x = 0; \
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EXPECT_EQ(1, sscanf(STR, FMT, &x)); \
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x; \
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})
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TEST(sscanf, testMultiple) {
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int a, b, c;
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ASSERT_EQ(3, sscanf("123 123 123", "%d %x %o", &a, &b, &c));
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EXPECT_EQ(123, a);
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EXPECT_EQ(0x123, b);
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EXPECT_EQ(0123, c);
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}
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TEST(sscanf, testDecimal) {
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EXPECT_EQ(123, sscanf1("123", "%d"));
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EXPECT_EQ(123, sscanf1("123", "%u"));
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EXPECT_EQ((uint32_t)-123, sscanf1("-123", "%d"));
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}
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TEST(sscanf, testHex) {
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EXPECT_EQ(0x123, sscanf1("123", "%x"));
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EXPECT_EQ(0x123, sscanf1("0x123", "%x"));
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EXPECT_EQ(0x123, sscanf1("0123", "%x"));
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EXPECT_EQ(INT128_MAX,
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sscanf1("170141183460469231731687303715884105727", "%jjd"));
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EXPECT_EQ(INT128_MIN,
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sscanf1("-170141183460469231731687303715884105728", "%jjd"));
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EXPECT_EQ(UINT128_MAX, sscanf1("0xffffffffffffffffffffffffffffffff", "%jjx"));
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}
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TEST(sscanf, testOctal) {
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EXPECT_EQ(0123, sscanf1("123", "%o"));
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EXPECT_EQ(0123, sscanf1("0123", "%o"));
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}
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TEST(sscanf, testNonDirectiveCharacterMatching) {
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EXPECT_EQ(0, sscanf("%", "%%"));
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}
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TEST(sscanf, testCharacter) {
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char c = 0;
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EXPECT_EQ(1, sscanf("a", "%c", &c));
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EXPECT_EQ('a', c);
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}
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TEST(sscanf, testStringBuffer) {
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char s1[32], s2[32];
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ASSERT_EQ(2, sscanf("abc xyz", "%s %s", s1, s2));
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EXPECT_STREQ("abc", &s1[0]);
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EXPECT_STREQ("xyz", &s2[0]);
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}
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TEST(sscanf, testStringBuffer_gothicUtf8ToUtf8_roundTrips) {
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char s1[64], s2[64];
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ASSERT_EQ(2, sscanf("𐌰𐌱𐌲𐌳 𐌴𐌵𐌶𐌷", "%63s %63s", s1, s2));
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EXPECT_STREQ("𐌰𐌱𐌲𐌳", s1);
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EXPECT_STREQ("𐌴𐌵𐌶𐌷", s2);
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}
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TEST(sscanf, testStringBuffer_gothicUtf8to16) {
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char16_t s1[64], s2[64];
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ASSERT_EQ(2, sscanf("𐌰𐌱𐌲𐌳 𐌴𐌵𐌶𐌷", "%63hs %63hs", s1, s2));
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EXPECT_STREQ(u"𐌰𐌱𐌲𐌳", s1);
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EXPECT_STREQ(u"𐌴𐌵𐌶𐌷", s2);
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}
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TEST(sscanf, testStringBuffer_gothicUtf8ToUtf32) {
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wchar_t s1[64], s2[64];
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ASSERT_EQ(2, sscanf("𐌰𐌱𐌲𐌳 𐌴𐌵𐌶𐌷", "%63ls %63ls", s1, s2));
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EXPECT_STREQ(L"𐌰𐌱𐌲𐌳", s1);
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EXPECT_STREQ(L"𐌴𐌵𐌶𐌷", s2);
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}
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TEST(sscanf, testStringBuffer_allocatingBehavior) {
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char *s1, *s2;
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ASSERT_EQ(2, sscanf("𐌰𐌱𐌲𐌳 𐌴𐌵𐌶𐌷", "%ms %ms", &s1, &s2));
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EXPECT_STREQ("𐌰𐌱𐌲𐌳", s1);
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EXPECT_STREQ("𐌴𐌵𐌶𐌷", s2);
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free(s1);
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free(s2);
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}
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TEST(sscanf, testPracticalBusinessApplication) {
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unsigned start, stop;
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char width;
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ASSERT_EQ(1, sscanf("0BF3..", "%x", &start));
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EXPECT_EQ(0x0BF3, start);
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ASSERT_EQ(3, sscanf("0BF3..0BF8;N # So [6] TAMIL DAY SIGN",
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"%x..%x;%c", &start, &stop, &width));
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EXPECT_EQ(0x0BF3, start);
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EXPECT_EQ(0x0BF8, stop);
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EXPECT_EQ('N', width);
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}
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TEST(sscanf, socketListenUri) {
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char proto[4];
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unsigned char ip4[4];
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uint16_t port;
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ASSERT_EQ(6, sscanf("tcp:127.0.0.1:31337", "%3s:%hhu.%hhu.%hhu.%hhu:%hu",
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proto, &ip4[0], &ip4[1], &ip4[2], &ip4[3], &port));
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ASSERT_STREQ("tcp", proto);
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ASSERT_EQ(127, ip4[0]);
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ASSERT_EQ(0, ip4[1]);
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ASSERT_EQ(0, ip4[2]);
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ASSERT_EQ(1, ip4[3]);
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ASSERT_EQ(31337, port);
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}
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TEST(sscanf, testDiscard_notIncludedInCount) {
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char buf[8];
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ASSERT_EQ(1, sscanf("hello there", "%*s %8s", buf));
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EXPECT_STREQ("there", buf);
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}
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TEST(sscanf, testFixedWidthFormat_Integer) {
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int r, g, b;
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ASSERT_EQ(3, sscanf("#321030", "#%2x%2b%2d", &r, &g, &b));
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ASSERT_EQ(0x32, r);
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ASSERT_EQ(2, g);
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ASSERT_EQ(30, b);
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}
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TEST(sscanf, testInttypes_macros) {
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int8_t i8 = (int8_t)0xFFFFFFFFFFFFFFFF;
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uint8_t u8 = (uint8_t)0xFFFFFFFFFFFFFFFF;
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int16_t i16 = (int16_t)0xFFFFFFFFFFFFFFFF;
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uint16_t u16 = (uint16_t)0xFFFFFFFFFFFFFFFF;
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int32_t i32 = (int32_t)0xFFFFFFFFFFFFFFFF;
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uint32_t u32 = (uint32_t)0xFFFFFFFFFFFFFFFF;
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int64_t i64 = (int64_t)0xFFFFFFFFFFFFFFFF;
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uint64_t u64 = (uint64_t)0xFFFFFFFFFFFFFFFF;
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intmax_t imax = (intmax_t)0xFFFFFFFFFFFFFFFF;
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uintmax_t umax = (uintmax_t)0xFFFFFFFFFFFFFFFF;
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int_least8_t il8 = (int_least8_t)0xFFFFFFFFFFFFFFFF;
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uint_least8_t ul8 = (uint_least8_t)0xFFFFFFFFFFFFFFFF;
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int_least16_t il16 = (int_least16_t)0xFFFFFFFFFFFFFFFF;
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uint_least16_t ul16 = (uint_least16_t)0xFFFFFFFFFFFFFFFF;
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int_least32_t il32 = (int_least32_t)0xFFFFFFFFFFFFFFFF;
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uint_least32_t ul32 = (uint_least32_t)0xFFFFFFFFFFFFFFFF;
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int_least64_t il64 = (int_least64_t)0xFFFFFFFFFFFFFFFF;
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uint_least64_t ul64 = (uint_least64_t)0xFFFFFFFFFFFFFFFF;
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int_fast8_t if8 = (int_fast8_t)0xFFFFFFFFFFFFFFFF;
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uint_fast8_t uf8 = (uint_fast8_t)0xFFFFFFFFFFFFFFFF;
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int_fast16_t if16 = (int_fast16_t)0xFFFFFFFFFFFFFFFF;
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uint_fast16_t uf16 = (uint_fast16_t)0xFFFFFFFFFFFFFFFF;
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int_fast32_t if32 = (int_fast32_t)0xFFFFFFFFFFFFFFFF;
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uint_fast32_t uf32 = (uint_fast32_t)0xFFFFFFFFFFFFFFFF;
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int_fast64_t if64 = (int_fast64_t)0xFFFFFFFFFFFFFFFF;
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uint_fast64_t uf64 = (uint_fast64_t)0xFFFFFFFFFFFFFFFF;
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ASSERT_EQ(sscanf("1", "%" SCNd8, &i8), 1);
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ASSERT_EQ(sscanf("1", "%" SCNu8, &u8), 1);
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ASSERT_EQ(sscanf("1", "%" SCNd16, &i16), 1);
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ASSERT_EQ(sscanf("1", "%" SCNu16, &u16), 1);
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ASSERT_EQ(sscanf("1", "%" SCNd32, &i32), 1);
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ASSERT_EQ(sscanf("1", "%" SCNu32, &u32), 1);
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ASSERT_EQ(sscanf("1", "%" SCNd64, &i64), 1);
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ASSERT_EQ(sscanf("1", "%" SCNu64, &u64), 1);
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ASSERT_EQ(sscanf("1", "%" SCNdMAX, &imax), 1);
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ASSERT_EQ(sscanf("1", "%" SCNuMAX, &umax), 1);
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ASSERT_EQ(sscanf("1", "%" SCNdLEAST8, &il8), 1);
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ASSERT_EQ(sscanf("1", "%" SCNuLEAST8, &ul8), 1);
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ASSERT_EQ(sscanf("1", "%" SCNdLEAST16, &il16), 1);
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ASSERT_EQ(sscanf("1", "%" SCNuLEAST16, &ul16), 1);
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ASSERT_EQ(sscanf("1", "%" SCNdLEAST32, &il32), 1);
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ASSERT_EQ(sscanf("1", "%" SCNuLEAST32, &ul32), 1);
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ASSERT_EQ(sscanf("1", "%" SCNdLEAST64, &il64), 1);
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ASSERT_EQ(sscanf("1", "%" SCNuLEAST64, &ul64), 1);
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ASSERT_EQ(sscanf("1", "%" SCNdFAST8, &if8), 1);
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ASSERT_EQ(sscanf("1", "%" SCNuFAST8, &uf8), 1);
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ASSERT_EQ(sscanf("1", "%" SCNdFAST16, &if16), 1);
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ASSERT_EQ(sscanf("1", "%" SCNuFAST16, &uf16), 1);
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ASSERT_EQ(sscanf("1", "%" SCNdFAST32, &if32), 1);
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ASSERT_EQ(sscanf("1", "%" SCNuFAST32, &uf32), 1);
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ASSERT_EQ(sscanf("1", "%" SCNdFAST64, &if64), 1);
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ASSERT_EQ(sscanf("1", "%" SCNuFAST64, &uf64), 1);
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ASSERT_EQ(i8, 1);
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ASSERT_EQ(u8, 1);
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ASSERT_EQ(i16, 1);
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ASSERT_EQ(u16, 1);
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ASSERT_EQ(i32, 1);
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ASSERT_EQ(u32, 1);
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ASSERT_EQ(i64, 1);
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ASSERT_EQ(u64, 1);
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ASSERT_EQ(imax, 1);
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ASSERT_EQ(umax, 1);
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ASSERT_EQ(il8, 1);
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ASSERT_EQ(ul8, 1);
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ASSERT_EQ(il16, 1);
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ASSERT_EQ(ul16, 1);
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ASSERT_EQ(il32, 1);
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ASSERT_EQ(ul32, 1);
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ASSERT_EQ(il64, 1);
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ASSERT_EQ(ul64, 1);
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ASSERT_EQ(if16, 1);
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ASSERT_EQ(uf16, 1);
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ASSERT_EQ(if32, 1);
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ASSERT_EQ(uf32, 1);
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ASSERT_EQ(if64, 1);
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ASSERT_EQ(uf64, 1);
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}
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TEST(sscanf, test0) {
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int v;
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v = 0xFFFFFFFF;
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ASSERT_EQ(sscanf("0", "%x", &v), 1);
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ASSERT_EQ(v, 0);
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v = 0xFFFFFFFF;
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ASSERT_EQ(sscanf("0", "%X", &v), 1);
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ASSERT_EQ(v, 0);
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v = 0xFFFFFFFF;
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ASSERT_EQ(sscanf("0", "%d", &v), 1);
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ASSERT_EQ(v, 0);
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v = 0xFFFFFFFF;
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ASSERT_EQ(sscanf("0", "%o", &v), 1);
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ASSERT_EQ(v, 0);
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v = 0xFFFFFFFF;
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ASSERT_EQ(sscanf("0", "%u", &v), 1);
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ASSERT_EQ(v, 0);
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v = 0xFFFFFFFF;
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ASSERT_EQ(sscanf("0", "%b", &v), 1);
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ASSERT_EQ(v, 0);
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}
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TEST(sscanf, n) {
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int x, y;
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EXPECT_EQ(1, sscanf("7 2 3 4", "%d%n", &x, &y));
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EXPECT_EQ(7, x);
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EXPECT_EQ(1, y);
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}
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TEST(sscanf, eofForNoMatching) {
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int y = 666;
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char x[8] = "hi";
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EXPECT_EQ(-1, sscanf(" ", "%s%n", &x, &y));
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EXPECT_STREQ("hi", x);
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EXPECT_EQ(666, y);
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}
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TEST(sscanf, eofConditions) {
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int x = 666;
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EXPECT_EQ(-1, sscanf("", "%d", &x));
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EXPECT_EQ(666, x);
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EXPECT_EQ(-1, sscanf(" ", "%d", &x));
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EXPECT_EQ(666, x);
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EXPECT_EQ(-1, sscanf("123", "%*d%d", &x));
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EXPECT_EQ(666, x);
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EXPECT_EQ(-1, sscanf("123", "%*d%n", &x));
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EXPECT_EQ(666, x);
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}
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TEST(sscanf, decimal) {
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int x = 666;
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int y = 666;
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EXPECT_EQ(1, sscanf("019", "%d%d", &x, &y));
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EXPECT_EQ(19, x);
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EXPECT_EQ(666, y);
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}
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TEST(sscanf, octal) {
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int x = 666;
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int y = 666;
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EXPECT_EQ(2, sscanf("019", "%o%d", &x, &y));
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EXPECT_EQ(1, x);
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EXPECT_EQ(9, y);
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}
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TEST(sscanf, flexdecimal_octal) {
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int x = 666;
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int y = 666;
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EXPECT_EQ(2, sscanf("019", "%i%d", &x, &y));
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EXPECT_EQ(1, x);
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EXPECT_EQ(9, y);
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}
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TEST(sscanf, flexdecimal_decimal) {
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int x = 666;
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int y = 666;
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EXPECT_EQ(1, sscanf("109a", "%i%d", &x, &y));
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EXPECT_EQ(109, x);
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EXPECT_EQ(666, y);
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}
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TEST(sscanf, flexdecimal_hex) {
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int x = 666;
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int y = 666;
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EXPECT_EQ(1, sscanf("0x19a", "%i%d", &x, &y));
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EXPECT_EQ(0x19a, x);
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EXPECT_EQ(666, y);
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}
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TEST(sscanf, floating_point_simple) {
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float x = 666.666f, y = x, z = y;
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EXPECT_EQ(3, sscanf("0.3715 .3715 3715", "%f %f %f", &x, &y, &z));
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EXPECT_EQ(0.3715f, x);
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EXPECT_EQ(0.3715f, y);
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EXPECT_EQ(3715.0f, z);
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}
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TEST(sscanf, floating_point_simple_double_precision) {
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double x = 666.666, y = x, z = y;
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EXPECT_EQ(3, sscanf("0.3715 .3715 3715", "%lf %lf %lf", &x, &y, &z));
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EXPECT_EQ(0.3715, x);
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EXPECT_EQ(0.3715, y);
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EXPECT_EQ(3715.0, z);
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}
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TEST(sscanf, floating_point_nan) {
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float a = 666.666f, b = a, c = b, d = c, e = d, f = e;
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EXPECT_EQ(4, sscanf("nan -NAN nAn NaN", "%f %f %f %f", &a, &b, &c, &d));
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EXPECT_EQ(2, sscanf("nan(2) -NaN(_ABCDzxcv1234_)", "%f %f", &e, &f));
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EXPECT_TRUE(isnan(a));
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EXPECT_TRUE(isnan(b));
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EXPECT_TRUE(isnan(c));
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EXPECT_TRUE(isnan(d));
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EXPECT_TRUE(isnan(e));
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EXPECT_TRUE(isnan(f));
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}
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TEST(sscanf, floating_point_nan_double_precision) {
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double a = 666.666, b = a, c = b, d = c, e = d, f = e;
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EXPECT_EQ(4, sscanf("nan -NAN nAn NaN", "%lf %lf %lf %lf", &a, &b, &c, &d));
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EXPECT_EQ(2, sscanf("nan(2) -NAN(_ABCDzxcv1234_)", "%lf %lf", &e, &f));
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EXPECT_TRUE(isnan(a));
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EXPECT_TRUE(isnan(b));
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EXPECT_TRUE(isnan(c));
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EXPECT_TRUE(isnan(d));
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EXPECT_TRUE(isnan(e));
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EXPECT_TRUE(isnan(f));
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}
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TEST(sscanf, floating_point_infinity) {
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float a = 666.666f, b = a, c = b, d = c, e = d, f = e, g = f;
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EXPECT_EQ(4, sscanf("inf +INF -iNf InF", "%f %f %f %f", &a, &b, &c, &d));
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EXPECT_EQ(3, sscanf("+infinity -INFINITY iNfInItY", "%f %f %f", &e, &f, &g));
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EXPECT_TRUE(isinf(a));
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EXPECT_TRUE(isinf(b));
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EXPECT_TRUE(isinf(c));
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EXPECT_TRUE(isinf(d));
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EXPECT_TRUE(isinf(e));
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EXPECT_TRUE(isinf(f));
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EXPECT_TRUE(isinf(g));
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}
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TEST(sscanf, floating_point_infinity_double_precision) {
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double a = 666.666, b = a, c = b, d = c, e = d, f = e, g = f;
|
|
EXPECT_EQ(4, sscanf("inf +INF -iNf InF", "%lf %lf %lf %lf", &a, &b, &c, &d));
|
|
EXPECT_EQ(3, sscanf("+infinity -INFINITY iNfInItY", "%lf %lf %lf", &e, &f, &g));
|
|
EXPECT_TRUE(isinf(a));
|
|
EXPECT_TRUE(isinf(b));
|
|
EXPECT_TRUE(isinf(c));
|
|
EXPECT_TRUE(isinf(d));
|
|
EXPECT_TRUE(isinf(e));
|
|
EXPECT_TRUE(isinf(f));
|
|
EXPECT_TRUE(isinf(g));
|
|
}
|
|
|
|
TEST(sscanf, floating_point_documentation_examples) {
|
|
float a = 666.666f, b = a, c = b, d = c, e = d, f = e, g = f, h = g, i = h, j = i;
|
|
|
|
EXPECT_EQ(2, sscanf("111.11 -2.22", "%f %f", &a, &b));
|
|
EXPECT_EQ(3, sscanf("Nan nan(2) inF", "%f %f %f", &c, &d, &e));
|
|
EXPECT_EQ(5, sscanf("0X1.BC70A3D70A3D7P+6 1.18973e+4932zzz -0.0000000123junk junk", "%f %f %f %f %f", &f, &g, &h, &i, &j));
|
|
|
|
EXPECT_EQ(111.11f, a);
|
|
EXPECT_EQ(-2.22f, b);
|
|
EXPECT_TRUE(isnan(c));
|
|
EXPECT_TRUE(isnan(d));
|
|
EXPECT_TRUE(isinf(e));
|
|
EXPECT_EQ(0X1.BC70A3D70A3D7P+6f, f);
|
|
EXPECT_TRUE(isinf(g));
|
|
EXPECT_EQ(-0.0000000123f, h);
|
|
EXPECT_EQ(.0f, i);
|
|
EXPECT_EQ(.0f, j);
|
|
}
|
|
|
|
TEST(sscanf, floating_point_documentation_examples_double_precision) {
|
|
double a = 666.666, b = a, c = b, d = c, e = d, f = e, g = f, h = g, i = h, j = i;
|
|
|
|
EXPECT_EQ(2, sscanf("111.11 -2.22", "%lf %lf", &a, &b));
|
|
EXPECT_EQ(3, sscanf("Nan nan(2) inF", "%lf %lf %lf", &c, &d, &e));
|
|
EXPECT_EQ(5, sscanf("0X1.BC70A3D70A3D7P+6 1.18973e+4932zzz -0.0000000123junk junk", "%lf %lf %lf %lf %lf", &f, &g, &h, &i, &j));
|
|
|
|
EXPECT_EQ(111.11, a);
|
|
EXPECT_EQ(-2.22, b);
|
|
EXPECT_TRUE(isnan(c));
|
|
EXPECT_TRUE(isnan(d));
|
|
EXPECT_TRUE(isinf(e));
|
|
EXPECT_EQ(0X1.BC70A3D70A3D7P+6, f);
|
|
EXPECT_TRUE(isinf(g));
|
|
EXPECT_EQ(-0.0000000123, h);
|
|
EXPECT_EQ(.0, i);
|
|
EXPECT_EQ(.0, j);
|
|
}
|
|
|
|
TEST(sscanf, luplus) {
|
|
long x = 666;
|
|
EXPECT_EQ(1, sscanf("+123", "%lu", &x));
|
|
EXPECT_EQ(123, x);
|
|
}
|
|
|
|
TEST(sscanf, lupluser) {
|
|
long x = 666;
|
|
EXPECT_EQ(1, sscanf("+123", "%li", &x));
|
|
EXPECT_EQ(123, x);
|
|
}
|
|
|
|
TEST(fscanf, stuff) {
|
|
int x;
|
|
char *s = "1 12 123\n"
|
|
"4 44\n";
|
|
FILE *f = fmemopen(s, strlen(s), "r+");
|
|
EXPECT_EQ(1, fscanf(f, "%d", &x));
|
|
EXPECT_EQ(1, x);
|
|
EXPECT_EQ(1, fscanf(f, "%d", &x));
|
|
EXPECT_EQ(12, x);
|
|
EXPECT_EQ(1, fscanf(f, "%d", &x));
|
|
EXPECT_EQ(123, x);
|
|
EXPECT_EQ(1, fscanf(f, "%d", &x));
|
|
EXPECT_EQ(4, x);
|
|
EXPECT_EQ(1, fscanf(f, "%d", &x));
|
|
EXPECT_EQ(44, x);
|
|
EXPECT_EQ(-1, fscanf(f, "%d", &x));
|
|
fclose(f);
|
|
}
|
|
|
|
TEST(fscanf, wantDecimalButGotLetter_returnsZeroMatches) {
|
|
int x = 666;
|
|
char *s = "a1\n";
|
|
FILE *f = fmemopen(s, strlen(s), "r+");
|
|
EXPECT_EQ(0, fscanf(f, "%d", &x));
|
|
EXPECT_EQ(666, x);
|
|
fclose(f);
|
|
}
|