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hypermistandClaude Opus 5.5
8e46144d48
- strtol, strtoul, strtoll, strtoull and strtouq return 0 for a base outside 0 and 2 to 36, leave the end at the start and set EINVAL; strtoimax, strtoumax, _Stoull, _Stoul and the wide forms do the same without errno. - A 0x prefix with no hexadecimal digit after it (base 0 or 16) is no conversion: the end stays at the start of the string. - wcstol, wcstoll and wcstoimax take one sign, convert the rest with wcstoull and clamp to the signed range with ERANGE, so "- 1" is -1 and "+\t-1" overflows. - atoi, atol and atoll truncate strtoull's result. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RbLgECLQ2bpDM7oe2urGZK
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
#include "prx/libc/include/general/VabiMacros.hpp"
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#include <cstdint>
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#include <cstdio>
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extern "C" {
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int APS5_VABI atoi_nid_postfix(const char*);
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int* APS5_VABI __error_nid_postfix();
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}
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int main() {
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struct Case {
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const char* text;
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int value;
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int error;
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};
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constexpr int SavedError = 1234;
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constexpr Case cases[] = {
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{"0", 0, SavedError},
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{"+42", 42, SavedError},
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{" \t\n\r\f\v-0012tail", -12, SavedError},
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{"010", 10, SavedError},
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{"0x10", 0, SavedError},
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{"0b10", 0, SavedError},
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{"", 0, SavedError},
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{"words", 0, SavedError},
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{" +", 0, SavedError},
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{"2147483647", INT32_MAX, SavedError},
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{"-2147483648", INT32_MIN, SavedError},
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{"2147483648", INT32_MIN, SavedError},
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{"-2147483649", INT32_MAX, SavedError},
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{"4294967295", -1, SavedError},
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{"-4294967295", 1, SavedError},
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{"4294967296", 0, SavedError},
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{"-4294967296", 0, SavedError},
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{" \t+4294967297tail", 1, SavedError},
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{"9223372036854775807", -1, SavedError},
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{"-9223372036854775808", 0, SavedError},
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{"9223372036854775808", 0, SavedError},
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{"-9223372036854775809", -1, SavedError},
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{"999999999999999999999999999999999999", -1, 34},
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{"-999999999999999999999999999999999999", -1, 34},
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};
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bool correct = true;
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for (const auto& test : cases) {
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*__error_nid_postfix() = SavedError;
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const int value = atoi_nid_postfix(test.text);
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const int error = *__error_nid_postfix();
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if (value != test.value || error != test.error) {
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std::fprintf(stderr, "atoi(%s): expected %d, errno %d; received %d, errno %d\n",
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test.text, test.value, test.error, value, error);
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correct = false;
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}
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}
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return correct ? 0 : 1;
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}
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