https://git.reactos.org/?p=reactos.git;a=commitdiff;h=b09b5584e0778519bb2ee286a1afb04967295d18
commit b09b5584e0778519bb2ee286a1afb04967295d18 Author: Timo Kreuzer <[email protected]> AuthorDate: Mon Oct 28 18:14:55 2024 +0200 Commit: Timo Kreuzer <[email protected]> CommitDate: Sun Jan 26 18:08:55 2025 +0200 [UCRT:MATH] Implement math error support functions --- sdk/lib/ucrt/CMakeLists.txt | 2 + sdk/lib/ucrt/math/math.cmake | 4 ++ sdk/lib/ucrt/math/matherr.cpp | 90 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 96 insertions(+) diff --git a/sdk/lib/ucrt/CMakeLists.txt b/sdk/lib/ucrt/CMakeLists.txt index a5106b5037c..a10b7b60029 100644 --- a/sdk/lib/ucrt/CMakeLists.txt +++ b/sdk/lib/ucrt/CMakeLists.txt @@ -94,6 +94,7 @@ include(initializers/initializers.cmake) include(internal/internal.cmake) include(locale/locale.cmake) include(lowio/lowio.cmake) +include(math/math.cmake) include(mbstring/mbstring.cmake) include(misc/misc.cmake) include(startup/startup.cmake) @@ -116,6 +117,7 @@ add_library(ucrt OBJECT ${UCRT_INTERNAL_SOURCES} ${UCRT_LOCALE_SOURCES} ${UCRT_LOWIO_SOURCES} + ${UCRT_MATH_SOURCES} ${UCRT_MBSTRING_SOURCES} ${UCRT_MISC_SOURCES} ${UCRT_STARTUP_SOURCES} diff --git a/sdk/lib/ucrt/math/math.cmake b/sdk/lib/ucrt/math/math.cmake new file mode 100644 index 00000000000..4eadd9f107d --- /dev/null +++ b/sdk/lib/ucrt/math/math.cmake @@ -0,0 +1,4 @@ + +list(APPEND UCRT_MATH_SOURCES + math/matherr.cpp +) diff --git a/sdk/lib/ucrt/math/matherr.cpp b/sdk/lib/ucrt/math/matherr.cpp new file mode 100644 index 00000000000..500d8fd1a9b --- /dev/null +++ b/sdk/lib/ucrt/math/matherr.cpp @@ -0,0 +1,90 @@ +// +// matherr.cpp +// +// Copyright (c) 2024 Timo Kreuzer +// +// User math error support. +// +// SPDX-License-Identifier: MIT +// + +#include <math.h> +#include <corecrt_startup.h> +#include <corecrt_internal.h> + +static __crt_state_management::dual_state_global<_UserMathErrorFunctionPointer> __acrt_global_user_matherr; + +// +// Declared in corecrt_internal.h +// Called from initialize_pointers() +// +extern "C" +void __cdecl __acrt_initialize_user_matherr(void* encoded_null) +{ + __acrt_global_user_matherr.initialize( + reinterpret_cast<_UserMathErrorFunctionPointer>(encoded_null)); +} + +// +// Declared in corecrt_internal.h +// +extern "C" +bool __cdecl __acrt_has_user_matherr(void) +{ + _UserMathErrorFunctionPointer user_matherr = + __crt_fast_decode_pointer(__acrt_global_user_matherr.value()); + return user_matherr != nullptr; +} + +// +// Declared in corecrt_internal.h +// +extern "C" +int __cdecl __acrt_invoke_user_matherr(struct _exception* _Exp) +{ + _UserMathErrorFunctionPointer user_matherr = + __crt_fast_decode_pointer(__acrt_global_user_matherr.value()); + if (user_matherr != nullptr) + { + return user_matherr(_Exp); + } + + return 0; +} + +// +// Declared in corecrt_startup.h +// +extern "C" +void +__cdecl +__setusermatherr( + _UserMathErrorFunctionPointer _UserMathErrorFunction) +{ + _UserMathErrorFunctionPointer encodedPtr = + __crt_fast_encode_pointer(_UserMathErrorFunction); + + __acrt_global_user_matherr.value() = encodedPtr; +} + +// +// Used by libm +// +extern "C" +int +__cdecl +_invoke_matherr( + int type, + char* name, + double arg1, + double arg2, + double retval) +{ + struct _exception excpt; + excpt.type = type; + excpt.name = name; + excpt.arg1 = arg1; + excpt.arg2 = arg2; + excpt.retval = retval; + return __acrt_invoke_user_matherr(&excpt); +}
