mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 15:03:34 +00:00
592f6ebc20
- 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
75 lines
3.3 KiB
C
75 lines
3.3 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 2024 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 <errno.h>
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#include <limits.h>
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#include <stdlib.h>
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#define TEST(x) \
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if (!(x)) return __LINE__
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int main() {
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char *end;
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// Basic conversions
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TEST(strtol("10", &end, 10) == 10L);
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TEST(strtol("-10", &end, 10) == -10L);
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TEST(strtol("+10", &end, 10) == 10L);
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// Edge cases and error detection
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TEST(strtol("0", &end, 10) == 0L);
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TEST(strtol("-0", &end, 10) == 0L);
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TEST(strtol("+0", &end, 10) == 0L);
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TEST(strtol("9223372036854775807", &end, 10) == LONG_MAX);
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TEST(strtol("-9223372036854775808", &end, 10) == LONG_MIN);
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// Base specification
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TEST(strtol("10", &end, 2) == 2L);
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TEST(strtol("10", &end, 16) == 16L);
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// Invalid input (should not modify errno if conversion is successful)
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errno = 0;
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TEST(strtol("invalid", &end, 10) == 0L && errno == 0);
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// Overflow detection
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errno = 0;
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TEST(strtol("99999999999999999999999999", &end, 10) == LONG_MAX &&
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errno == ERANGE);
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// Underflow detection
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errno = 0;
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TEST(strtol("-99999999999999999999999999", &end, 10) == LONG_MIN &&
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errno == ERANGE);
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// Partial conversion with valid characters before invalid ones
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TEST(strtol("123abc", &end, 10) == 123L && *end == 'a');
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// Testing with leading white space
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TEST(strtol(" 123", &end, 10) == 123L);
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// Base 0 auto-detection
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TEST(strtol("0x10", &end, 0) == 16L);
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TEST(strtol("010", &end, 0) == 8L);
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TEST(strtol("10", &end, 0) == 10L);
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// Check if 'end' pointer is set correctly to the next character after the
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// last valid digit
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char *ptr = "1234abcd";
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strtol(ptr, &end, 10);
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TEST(end == ptr + 4);
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}
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