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Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2025-03-12 11:14:19 +01:00
parent bfd8aaff65
commit 2694f59d79
3 changed files with 144 additions and 66 deletions
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138
UnitTests/UnitTests.xcodeproj/project.pbxproj
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@ -17,20 +17,20 @@
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@ -111,11 +141,41 @@
F4213D162ABB14AA00F72674 /* stdex */ = { F4213D162ABB14AA00F72674 /* stdex */ = {
isa = PBXGroup; isa = PBXGroup;
children = ( children = (
F44DE9642D818A49007E4ECC /* assert.hpp */,
F4213D182ABB14C600F72674 /* base64.hpp */, F4213D182ABB14C600F72674 /* base64.hpp */,
F4213D192ABB14C600F72674 /* chrono.hpp */,
F4213D1C2ABB14C600F72674 /* compat.hpp */, F4213D1C2ABB14C600F72674 /* compat.hpp */,
F44DE94F2D818A48007E4ECC /* curl.hpp */,
F44DE9672D818A49007E4ECC /* debug.hpp */,
F4213D272ABB14C600F72674 /* endian.hpp */, F4213D272ABB14C600F72674 /* endian.hpp */,
F4213D1D2ABB14C600F72674 /* errno.hpp */, F44DE94E2D818A48007E4ECC /* base64.hpp */,
F44DE9662D818A49007E4ECC /* exception.hpp */,
F44DE9692D818A49007E4ECC /* chrono.hpp */,
F44DE95C2D818A49007E4ECC /* hash.hpp */,
F44DE9602D818A49007E4ECC /* hex.hpp */,
F44DE96D2D818A4A007E4ECC /* compat.hpp */,
F44DE95F2D818A49007E4ECC /* html.hpp */,
F44DE9702D818A4A007E4ECC /* idrec.hpp */,
F44DE95E2D818A49007E4ECC /* endian.hpp */,
F44DE96F2D818A4A007E4ECC /* interval.hpp */,
F44DE94D2D818A48007E4ECC /* langid.hpp */,
F44DE96B2D818A49007E4ECC /* locale.hpp */,
F44DE9572D818A48007E4ECC /* math.hpp */,
F44DE9552D818A48007E4ECC /* minisign.hpp */,
F44DE9582D818A48007E4ECC /* parser.hpp */,
F44DE96C2D818A4A007E4ECC /* pool.hpp */,
F44DE9592D818A48007E4ECC /* ring.hpp */,
F44DE9512D818A48007E4ECC /* scoped_executor.hpp */,
F44DE9682D818A49007E4ECC /* sgml.hpp */,
F44DE9622D818A49007E4ECC /* socket.hpp */,
F44DE95A2D818A48007E4ECC /* spinlock.hpp */,
F44DE95B2D818A49007E4ECC /* string.hpp */,
F44DE94C2D818A48007E4ECC /* sys_info.hpp */,
F44DE9542D818A48007E4ECC /* unicode.hpp */,
F44DE96A2D818A49007E4ECC /* uuid.hpp */,
F44DE94A2D818A48007E4ECC /* watchdog.hpp */,
F44DE95D2D818A49007E4ECC /* wav.hpp */,
F44DE9522D818A48007E4ECC /* windows.h */,
F44DE9532D818A48007E4ECC /* zlib.hpp */,
F4213D1A2ABB14C600F72674 /* exception.hpp */, F4213D1A2ABB14C600F72674 /* exception.hpp */,
F4213D262ABB14C600F72674 /* hex.hpp */, F4213D262ABB14C600F72674 /* hex.hpp */,
F4213D1B2ABB14C600F72674 /* idrec.hpp */, F4213D1B2ABB14C600F72674 /* idrec.hpp */,
@ -245,29 +305,29 @@
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F421D47F2B750EAE004ECBB0 /* zutil.c in Sources */, F421D47F2B750EAE004ECBB0 /* zutil.c in Sources */,
F4C07F552AB05B5B0044EDC0 /* main.cpp in Sources */, F44DE97F2D818A9F007E4ECC /* math.cpp in Sources */,
F421D4882B751774004ECBB0 /* sgml.cpp in Sources */, F44DE9862D818A9F007E4ECC /* stream.cpp in Sources */,
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runOnlyForDeploymentPostprocessing = 0; runOnlyForDeploymentPostprocessing = 0;

12
UnitTests/string.cpp
View File

@ -1,4 +1,4 @@
/* /*
SPDX-License-Identifier: MIT SPDX-License-Identifier: MIT
Copyright © 2023-2025 Amebis Copyright © 2023-2025 Amebis
*/ */
@ -60,13 +60,15 @@ namespace UnitTests
{ {
wchar_t buf[8]; wchar_t buf[8];
Assert::IsTrue(stdex::snprintf(buf, _countof(buf), L"This is %ls.", locale, L"a test") == 8); size_t n = stdex::snprintf(buf, _countof(buf), L"This is %ls.", locale, L"a test");
Assert::IsTrue(stdex::strncmp(L"This is a test.", buf, _countof(buf)) == 0); Assert::IsTrue(n <= _countof(buf));
Assert::IsTrue(stdex::strncmp(L"This is a test.", buf, n) == 0);
} }
{ {
char buf[8]; char buf[8];
Assert::IsTrue(stdex::snprintf(buf, _countof(buf), "This is %s.", locale, "a test") == 8); size_t n = stdex::snprintf(buf, _countof(buf), "This is %s.", locale, "a test");
Assert::IsTrue(stdex::strncmp("This is a test.", buf, _countof(buf)) == 0); Assert::IsTrue(n <= _countof(buf));
Assert::IsTrue(stdex::strncmp("This is a test.", buf, n) == 0);
} }
} }
} }

60
include/stdex/string.hpp
View File

@ -14,7 +14,9 @@
#include <stdint.h> #include <stdint.h>
#include <stdio.h> #include <stdio.h>
#include <time.h> #include <time.h>
#ifdef _WIN32
#include <uchar.h> #include <uchar.h>
#endif
#ifdef __APPLE__ #ifdef __APPLE__
#include <xlocale.h> #include <xlocale.h>
#endif #endif
@ -888,8 +890,9 @@ namespace stdex
{ {
stdex_assert(str1); stdex_assert(str1);
stdex_assert(str2); stdex_assert(str2);
size_t i; T1 a; T2 b; size_t i;
for (i = 0; (a = str1[i]) | (b = str2[i]); ++i) { unsigned int a, b;
for (i = 0; (a = static_cast<unsigned int>(str1[i])) | (b = static_cast<unsigned int>(str2[i])); ++i) {
if (a > b) return +1; if (a > b) return +1;
if (a < b) return -1; if (a < b) return -1;
} }
@ -912,8 +915,9 @@ namespace stdex
{ {
stdex_assert(str1 || !count); stdex_assert(str1 || !count);
stdex_assert(str2 || !count); stdex_assert(str2 || !count);
size_t i; T1 a; T2 b; size_t i;
for (i = 0; i < count && ((a = str1[i]) | (b = str2[i])); ++i) { unsigned int a, b;
for (i = 0; i < count && ((a = static_cast<unsigned int>(str1[i])) | (b = static_cast<unsigned int>(str2[i]))); ++i) {
if (a > b) return +1; if (a > b) return +1;
if (a < b) return -1; if (a < b) return -1;
} }
@ -940,9 +944,10 @@ namespace stdex
stdex_assert(str1 || !count1); stdex_assert(str1 || !count1);
stdex_assert(str2 || !count2); stdex_assert(str2 || !count2);
size_t i; size_t i;
unsigned int a, b;
for (i = 0; i < count1 && i < count2; ++i) { for (i = 0; i < count1 && i < count2; ++i) {
auto a = str1[i]; a = static_cast<unsigned int>(str1[i]);
auto b = str2[i]; b = static_cast<unsigned int>(str2[i]);
if (!a && !b) return 0; if (!a && !b) return 0;
if (a > b) return +1; if (a > b) return +1;
if (a < b) return -1; if (a < b) return -1;
@ -984,7 +989,8 @@ namespace stdex
{ {
stdex_assert(str1 || !count1); stdex_assert(str1 || !count1);
stdex_assert(str2 || !count2); stdex_assert(str2 || !count2);
size_t i, j, j_next; utf32_t a, b; size_t i, j, j_next;
utf32_t a, b;
for (i = 0, j = 0; i < count1 && j < count2; ++i, j = j_next) { for (i = 0, j = 0; i < count1 && j < count2; ++i, j = j_next) {
a = str1[i]; a = str1[i];
if (!a) if (!a)
@ -1176,9 +1182,10 @@ namespace stdex
stdex_assert(str1); stdex_assert(str1);
stdex_assert(str2); stdex_assert(str2);
size_t i; size_t i;
unsigned int a, b;
for (i = 0; ; ++i) { for (i = 0; ; ++i) {
auto a = tolower(str1[i]); a = static_cast<unsigned int>(tolower(str1[i]));
auto b = tolower(str2[i]); b = static_cast<unsigned int>(tolower(str2[i]));
if (!a && !b) return 0; if (!a && !b) return 0;
if (a > b) return +1; if (a > b) return +1;
if (a < b) return -1; if (a < b) return -1;
@ -1200,11 +1207,12 @@ namespace stdex
stdex_assert(str1); stdex_assert(str1);
stdex_assert(str2); stdex_assert(str2);
size_t i; size_t i;
unsigned int a, b;
const auto& ctype1 = std::use_facet<std::ctype<T1>>(locale); const auto& ctype1 = std::use_facet<std::ctype<T1>>(locale);
const auto& ctype2 = std::use_facet<std::ctype<T2>>(locale); const auto& ctype2 = std::use_facet<std::ctype<T2>>(locale);
for (i = 0;; ++i) { for (i = 0;; ++i) {
auto a = ctype1.tolower(str1[i]); a = static_cast<unsigned int>(ctype1.tolower(str1[i]));
auto b = ctype2.tolower(str2[i]); b = static_cast<unsigned int>(ctype2.tolower(str2[i]));
if (!a && !b) return 0; if (!a && !b) return 0;
if (a > b) return +1; if (a > b) return +1;
if (a < b) return -1; if (a < b) return -1;
@ -1226,9 +1234,10 @@ namespace stdex
stdex_assert(str1 || !count); stdex_assert(str1 || !count);
stdex_assert(str2 || !count); stdex_assert(str2 || !count);
size_t i; size_t i;
unsigned int a, b;
for (i = 0; i < count; ++i) { for (i = 0; i < count; ++i) {
auto a = tolower(str1[i]); a = static_cast<unsigned int>(tolower(str1[i]));
auto b = tolower(str2[i]); b = static_cast<unsigned int>(tolower(str2[i]));
if (!a && !b) return 0; if (!a && !b) return 0;
if (a > b) return +1; if (a > b) return +1;
if (a < b) return -1; if (a < b) return -1;
@ -1254,11 +1263,12 @@ namespace stdex
stdex_assert(str1 || !count); stdex_assert(str1 || !count);
stdex_assert(str2 || !count); stdex_assert(str2 || !count);
size_t i; size_t i;
unsigned int a, b;
const auto& ctype1 = std::use_facet<std::ctype<T1>>(locale); const auto& ctype1 = std::use_facet<std::ctype<T1>>(locale);
const auto& ctype2 = std::use_facet<std::ctype<T2>>(locale); const auto& ctype2 = std::use_facet<std::ctype<T2>>(locale);
for (i = 0; i < count; ++i) { for (i = 0; i < count; ++i) {
auto a = ctype1.tolower(str1[i]); a = static_cast<unsigned int>(ctype1.tolower(str1[i]));
auto b = ctype2.tolower(str2[i]); b = static_cast<unsigned int>(ctype2.tolower(str2[i]));
if (!a && !b) return 0; if (!a && !b) return 0;
if (a > b) return +1; if (a > b) return +1;
if (a < b) return -1; if (a < b) return -1;
@ -1286,9 +1296,10 @@ namespace stdex
stdex_assert(str1 || !count1); stdex_assert(str1 || !count1);
stdex_assert(str2 || !count2); stdex_assert(str2 || !count2);
size_t i; size_t i;
unsigned int a, b;
for (i = 0; i < count1 && i < count2; ++i) { for (i = 0; i < count1 && i < count2; ++i) {
auto a = tolower(str1[i]); a = static_cast<unsigned int>(tolower(str1[i]));
auto b = tolower(str2[i]); b = static_cast<unsigned int>(tolower(str2[i]));
if (!a && !b) return 0; if (!a && !b) return 0;
if (a > b) return +1; if (a > b) return +1;
if (a < b) return -1; if (a < b) return -1;
@ -1318,11 +1329,12 @@ namespace stdex
stdex_assert(str1 || !count1); stdex_assert(str1 || !count1);
stdex_assert(str2 || !count2); stdex_assert(str2 || !count2);
size_t i; size_t i;
unsigned int a, b;
const auto& ctype1 = std::use_facet<std::ctype<T1>>(locale); const auto& ctype1 = std::use_facet<std::ctype<T1>>(locale);
const auto& ctype2 = std::use_facet<std::ctype<T2>>(locale); const auto& ctype2 = std::use_facet<std::ctype<T2>>(locale);
for (i = 0; i < count1 && i < count2; ++i) { for (i = 0; i < count1 && i < count2; ++i) {
auto a = ctype1.tolower(str1[i]); a = static_cast<unsigned int>(ctype1.tolower(str1[i]));
auto b = ctype2.tolower(str2[i]); b = static_cast<unsigned int>(ctype2.tolower(str2[i]));
if (!a && !b) return 0; if (!a && !b) return 0;
if (a > b) return +1; if (a > b) return +1;
if (a < b) return -1; if (a < b) return -1;
@ -1691,7 +1703,9 @@ namespace stdex
for (size_t j = 0, i = 0; ; ++j, ++i) { for (size_t j = 0, i = 0; ; ++j, ++i) {
// strcpy has no knowledge, how big the dst buffer is, but we know, we won't be writing more than strlen(src) + 1 characters into it. // strcpy has no knowledge, how big the dst buffer is, but we know, we won't be writing more than strlen(src) + 1 characters into it.
// Code Analysis somehow doesn't work this out from the code and the dst SAL above, and reports a false-positive warning. // Code Analysis somehow doesn't work this out from the code and the dst SAL above, and reports a false-positive warning.
#ifdef _MSC_VER
#pragma warning(suppress: 6386) #pragma warning(suppress: 6386)
#endif
if ((dst[j] = (is_surrogate_pair(&src[i]) ? surrogate_pair_to_ucs4(&src[i++]) : static_cast<utf32_t>(src[i]))) == 0) if ((dst[j] = (is_surrogate_pair(&src[i]) ? surrogate_pair_to_ucs4(&src[i++]) : static_cast<utf32_t>(src[i]))) == 0)
return j; return j;
} }
@ -2734,16 +2748,18 @@ namespace stdex
/// ///
/// Formats string using `printf()`. /// Formats string using `printf()`.
/// ///
/// \param[out] str Output string /// \param[out] str Output string. When this function returns <capacity, output string is zero terminated.
/// \param[in ] capacity Number of available code units in str /// \param[in ] capacity Number of available code units in str
/// \param[in ] format String template using `printf()` style /// \param[in ] format String template using `printf()` style
/// \param[in ] locale Stdlib locale used to perform formatting. Use `NULL` to use locale globally set by `setlocale()`. /// \param[in ] locale Stdlib locale used to perform formatting. Use `NULL` to use locale globally set by `setlocale()`.
/// ///
/// \return Number of output code units /// \return Number of output code units not including zero terminator
/// ///
template<class T> template<class T>
inline size_t snprintf(_Out_z_cap_(capacity) T* str, _In_ size_t capacity, _In_z_ _Printf_format_string_params_(2) const T* format, _In_opt_ locale_t locale, ...) inline size_t snprintf(_Out_z_cap_(capacity) T* str, _In_ size_t capacity, _In_z_ _Printf_format_string_params_(2) const T* format, _In_opt_ locale_t locale, ...)
{ {
if (!capacity) _Unlikely_
return 0;
va_list arg; va_list arg;
va_start(arg, locale); va_start(arg, locale);
int count = vsnprintf(str, capacity, format, locale, arg); int count = vsnprintf(str, capacity, format, locale, arg);
@ -2763,7 +2779,7 @@ namespace stdex
return capacity; return capacity;
#else #else
switch (errno) { switch (errno) {
case EOVERFLOW: return capacity; case EOVERFLOW: return capacity - 1;
case EINVAL: throw std::invalid_argument("invalid snprintf arguments"); case EINVAL: throw std::invalid_argument("invalid snprintf arguments");
case EILSEQ: throw std::runtime_error("encoding error"); case EILSEQ: throw std::runtime_error("encoding error");
default: throw std::runtime_error("failed to format string"); default: throw std::runtime_error("failed to format string");