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Fixes for Visual Studio 2019 static analyzers. (#3938, #4073) + two minor edge case were invalid scalar input (e.g. a sign only) would return buffer as modified.

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ocornut
2021-04-29 16:20:47 +02:00
parent 2dec7b3301
commit d28535f351
10 changed files with 36 additions and 12 deletions
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8
imgui_widgets.cpp
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@ -59,6 +59,8 @@ Index of this file:
#if defined(_MSC_VER) && _MSC_VER >= 1922 // MSVC 2019 16.2 or later
#pragma warning (disable: 5054) // operator '|': deprecated between enumerations of different types
#endif
#pragma warning (disable: 26451) // Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
#pragma warning (disable: 26812) // The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer)
#endif
// Clang/GCC warnings with -Weverything
@ -1980,13 +1982,15 @@ bool ImGui::DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
{
// All other types assign constant
// We don't bother handling support for legacy operators since they are a little too crappy. Instead we will later implement a proper expression evaluator in the future.
sscanf(buf, format, p_data);
if (sscanf(buf, format, p_data) < 1)
return false;
}
else
{
// Small types need a 32-bit buffer to receive the result from scanf()
int v32;
sscanf(buf, format, &v32);
if (sscanf(buf, format, &v32) < 1)
return false;
if (data_type == ImGuiDataType_S8)
*(ImS8*)p_data = (ImS8)ImClamp(v32, (int)IM_S8_MIN, (int)IM_S8_MAX);
else if (data_type == ImGuiDataType_U8)