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Remove 32-bit limitation (#2388)

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* Remove 32-bit limitation

* Fix build problems

* Add 32-bit disclaimer and fix MSVC x86 warnings

- Move 32-bit warning to top of README with strong disclaimer
- Add static_cast<size_t> to fix truncation warnings on 32-bit MSVC

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
yhiroseandClaude Opus 4.6 authored and GitHub committed 2026-03-06 23:07:21 -05:00
1 parent ab3098f18b
commit 7489fd3a8b
6 files changed
+53 -28
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httplib.h
+3 -22
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@@ -11,26 +11,6 @@
#define CPPHTTPLIB_VERSION "0.37.0"
#define CPPHTTPLIB_VERSION_NUM "0x002500"
/*
* Platform compatibility check
*/
#if defined(_WIN32) && !defined(_WIN64)
#if defined(_MSC_VER)
#pragma message( \
"cpp-httplib doesn't support 32-bit Windows. Please use a 64-bit compiler.")
#else
#warning \
"cpp-httplib doesn't support 32-bit Windows. Please use a 64-bit compiler."
#endif
#elif defined(__SIZEOF_POINTER__) && __SIZEOF_POINTER__ < 8
#warning \
"cpp-httplib doesn't support 32-bit platforms. Please use a 64-bit compiler."
#elif defined(__SIZEOF_SIZE_T__) && __SIZEOF_SIZE_T__ < 8
#warning \
"cpp-httplib doesn't support platforms where size_t is less than 64 bits."
#endif
#ifdef _WIN32
#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0A00
#error \
@@ -2801,7 +2781,7 @@ inline size_t get_header_value_u64(const Headers &headers,
std::advance(it, static_cast<ssize_t>(id));
if (it != rng.second) {
if (is_numeric(it->second)) {
return std::strtoull(it->second.data(), nullptr, 10);
return static_cast<size_t>(std::strtoull(it->second.data(), nullptr, 10));
} else {
is_invalid_value = true;
}
@@ -8241,7 +8221,8 @@ get_range_offset_and_length(Range r, size_t content_length) {
assert(r.first <= r.second &&
r.second < static_cast<ssize_t>(content_length));
(void)(content_length);
return std::make_pair(r.first, static_cast<size_t>(r.second - r.first) + 1);
return std::make_pair(static_cast<size_t>(r.first),
static_cast<size_t>(r.second - r.first) + 1);
}
inline std::string make_content_range_header_field(