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Make quality improvements

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- Write some more unit tests
- memcpy() on ARM is now faster
- Address the Musl complex math FIXME comments
- Some libm funcs like pow() now support setting errno
- Import the latest and greatest math functions from ARM
- Use more accurate atan2f() and log1pf() implementations
- atoi() and atol() will no longer saturate or clobber errno
This commit is contained in:
Justine Tunney 2024-02-25 14:57:28 -08:00
parent af8f2bd19f
commit 592f6ebc20
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GPG key ID: BE714B4575D6E328
122 changed files with 6305 additions and 3859 deletions
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2
test/posix/BUILD.mk
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@ -51,8 +51,6 @@ o/$(MODE)/test/posix/%.com.dbg: \
$(APE_NO_MODIFY_SELF)
@$(APELINK)
$(TEST_POSIX_OBJS): private CFLAGS += -isystem isystem/
.PHONY: o/$(MODE)/test/posix
o/$(MODE)/test/posix: \
$(TEST_POSIX_BINS) \

46
test/posix/atoi_test.c Normal file
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@ -0,0 +1,46 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include <errno.h>
#include <limits.h>
#include <stdlib.h>
#define TEST(x) \
if (!(x)) return __LINE__
int main() {
TEST(atoi("") == 0);
TEST(atoi("-") == 0);
TEST(atoi("0") == 0);
TEST(atoi("1") == 1);
TEST(atoi("+1") == 1);
TEST(atoi("-1") == -1);
TEST(atoi("1-") == 1);
TEST(atoi("--1") == 0);
TEST(atoi("16 32") == 16);
TEST(atoi("\t 16") == 16);
TEST(atoi("\v 16") == 16);
TEST(atoi("\n 16") == 16);
TEST(atoi("\r 16") == 16);
TEST(atoi("rr 16") == 0);
TEST(atoi("0123456789") == 123456789);
TEST(atoi("2147483647") == INT_MAX);
TEST(atoi("-2147483648") == INT_MIN);
TEST(atoi("-2147483647") == INT_MIN + 1);
TEST(!errno);
}

75
test/posix/strtol_test.c Normal file
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@ -0,0 +1,75 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include <errno.h>
#include <limits.h>
#include <stdlib.h>
#define TEST(x) \
if (!(x)) return __LINE__
int main() {
char *end;
// Basic conversions
TEST(strtol("10", &end, 10) == 10L);
TEST(strtol("-10", &end, 10) == -10L);
TEST(strtol("+10", &end, 10) == 10L);
// Edge cases and error detection
TEST(strtol("0", &end, 10) == 0L);
TEST(strtol("-0", &end, 10) == 0L);
TEST(strtol("+0", &end, 10) == 0L);
TEST(strtol("9223372036854775807", &end, 10) == LONG_MAX);
TEST(strtol("-9223372036854775808", &end, 10) == LONG_MIN);
// Base specification
TEST(strtol("10", &end, 2) == 2L);
TEST(strtol("10", &end, 16) == 16L);
// Invalid input (should not modify errno if conversion is successful)
errno = 0;
TEST(strtol("invalid", &end, 10) == 0L && errno == 0);
// Overflow detection
errno = 0;
TEST(strtol("99999999999999999999999999", &end, 10) == LONG_MAX &&
errno == ERANGE);
// Underflow detection
errno = 0;
TEST(strtol("-99999999999999999999999999", &end, 10) == LONG_MIN &&
errno == ERANGE);
// Partial conversion with valid characters before invalid ones
TEST(strtol("123abc", &end, 10) == 123L && *end == 'a');
// Testing with leading white space
TEST(strtol(" 123", &end, 10) == 123L);
// Base 0 auto-detection
TEST(strtol("0x10", &end, 0) == 16L);
TEST(strtol("010", &end, 0) == 8L);
TEST(strtol("10", &end, 0) == 10L);
// Check if 'end' pointer is set correctly to the next character after the
// last valid digit
char *ptr = "1234abcd";
strtol(ptr, &end, 10);
TEST(end == ptr + 4);
}