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Fix signed/unsigned comparison warnings (#3900)

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They are treated as error, which leads to build failure.
Tested on Ubuntu 20.04, gcc 9.3.0.
This commit is contained in:
Vladislav Vinogradov 2021-01-19 12:55:15 +03:00 committed by GitHub
parent c20c3a9e3d
commit e88de8f822
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 41 additions and 10 deletions
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49
inference-engine/src/plugin_api/precision_utils.h
View File

@ -134,6 +134,15 @@ f32tof16Arrays(ie_fp16* dst, const float* src, size_t nelem, float scale = 1.f,
#pragma warning(disable : 4018) #pragma warning(disable : 4018)
#endif #endif
namespace details {
// To overcame syntax parse error, when `>` comparison operator is threated as template closing bracket
constexpr inline bool Greater(size_t v1, size_t v2) {
return v1 > v2;
}
} // namespace details
/** /**
* @brief Converts one integral type to another saturating the result if the source value doesn't fit * @brief Converts one integral type to another saturating the result if the source value doesn't fit
* into destination type range * into destination type range
@ -148,15 +157,29 @@ template <class OutT, class InT, typename std::enable_if<
!std::is_same<OutT, InT>::value !std::is_same<OutT, InT>::value
>::type* = nullptr> >::type* = nullptr>
inline OutT saturate_cast(const InT& value) { inline OutT saturate_cast(const InT& value) {
if (std::numeric_limits<OutT>::max() > std::numeric_limits<InT>::max() && using MaxT = typename std::conditional<
std::numeric_limits<OutT>::min() < std::numeric_limits<InT>::min()) { details::Greater(sizeof(OutT), sizeof(InT)),
typename std::make_unsigned<OutT>::type,
typename std::make_unsigned<InT>::type
>::type;
using MinT = typename std::conditional<
details::Greater(sizeof(OutT), sizeof(InT)),
typename std::make_signed<OutT>::type,
typename std::make_signed<InT>::type
>::type;
static const MaxT OUT_MAX = static_cast<MaxT>(std::numeric_limits<OutT>::max());
static const MaxT IN_MAX = static_cast<MaxT>(std::numeric_limits<InT>::max());
static const MinT OUT_MIN = static_cast<MinT>(std::numeric_limits<OutT>::min());
static const MinT IN_MIN = static_cast<MinT>(std::numeric_limits<InT>::min());
if (OUT_MAX > IN_MAX && OUT_MIN < IN_MIN) {
return static_cast<OutT>(value); return static_cast<OutT>(value);
} }
const InT max = std::numeric_limits<OutT>::max() < std::numeric_limits<InT>::max() ? std::numeric_limits<OutT>::max() : const InT max = static_cast<InT>(OUT_MAX < IN_MAX ? OUT_MAX : IN_MAX);
std::numeric_limits<InT>::max(); const InT min = static_cast<InT>(OUT_MIN > IN_MIN ? OUT_MIN : IN_MIN);
const InT min = std::numeric_limits<OutT>::min() > std::numeric_limits<InT>::min() ? std::numeric_limits<OutT>::min() :
std::numeric_limits<InT>::min();
return static_cast<OutT>(std::min(std::max(value, min), max)); return static_cast<OutT>(std::min(std::max(value, min), max));
} }
@ -175,12 +198,20 @@ template <class OutT, class InT, typename std::enable_if<
!std::is_same<OutT, InT>::value !std::is_same<OutT, InT>::value
>::type* = nullptr> >::type* = nullptr>
inline OutT saturate_cast(const InT& value) { inline OutT saturate_cast(const InT& value) {
if (std::numeric_limits<OutT>::max() > std::numeric_limits<InT>::max()) { using MaxT = typename std::conditional<
details::Greater(sizeof(OutT), sizeof(InT)),
typename std::make_unsigned<OutT>::type,
typename std::make_unsigned<InT>::type
>::type;
static const MaxT OUT_MAX = static_cast<MaxT>(std::numeric_limits<OutT>::max());
static const MaxT IN_MAX = static_cast<MaxT>(std::numeric_limits<InT>::max());
if (OUT_MAX > IN_MAX) {
return static_cast<OutT>(value); return static_cast<OutT>(value);
} }
const InT max = std::numeric_limits<OutT>::max() < std::numeric_limits<InT>::max() ? std::numeric_limits<OutT>::max() : const InT max = static_cast<InT>(OUT_MAX < IN_MAX ? OUT_MAX : IN_MAX);
std::numeric_limits<InT>::max();
return static_cast<OutT>(std::min(value, max)); return static_cast<OutT>(std::min(value, max));
} }

2
inference-engine/src/transformations/src/transformations/convert_precision.cpp
View File

@ -327,7 +327,7 @@ inline dst_type convert_value(src_type val) {
// and we don't need to compare and clamp the input to std::numeric_limits<int32_t>::lowest() // and we don't need to compare and clamp the input to std::numeric_limits<int32_t>::lowest()
template <> template <>
inline int32_t convert_value<uint64_t, int32_t>(uint64_t val) { inline int32_t convert_value<uint64_t, int32_t>(uint64_t val) {
if (val > std::numeric_limits<int32_t>::max()) { if (val > static_cast<uint64_t>(std::numeric_limits<int32_t>::max())) {
return std::numeric_limits<int32_t>::max(); return std::numeric_limits<int32_t>::max();
} }
return static_cast<int32_t>(val); return static_cast<int32_t>(val);