diff options
Diffstat (limited to 'src/float16_helper.cc')
| -rw-r--r-- | src/float16_helper.cc | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/src/float16_helper.cc b/src/float16_helper.cc index 617bd72..5cb35e7 100644 --- a/src/float16_helper.cc +++ b/src/float16_helper.cc @@ -15,6 +15,7 @@ #include "src/float16_helper.h" #include <cassert> +#include <cstring> // Float10 // | 9 8 7 6 5 | 4 3 2 1 0 | @@ -75,8 +76,11 @@ float HexFloat16ToFloat(const uint8_t* value) { } uint32_t hex = sign | exponent | mantissa; - float* hex_float = reinterpret_cast<float*>(&hex); - return *hex_float; + float hex_float; + static_assert((sizeof(uint32_t) == sizeof(float)), + "sizeof(uint32_t) != sizeof(float)"); + memcpy(&hex_float, &hex, sizeof(float)); + return hex_float; } // Convert float |value| whose size is 11 bits to 32 bits float @@ -89,8 +93,11 @@ float HexFloat11ToFloat(const uint8_t* value) { uint32_t mantissa = (static_cast<uint32_t>(value[0]) & 0x3f) << 17U; uint32_t hex = exponent | mantissa; - float* hex_float = reinterpret_cast<float*>(&hex); - return *hex_float; + float hex_float; + static_assert((sizeof(uint32_t) == sizeof(float)), + "sizeof(uint32_t) != sizeof(float)"); + memcpy(&hex_float, &hex, sizeof(float)); + return hex_float; } // Convert float |value| whose size is 10 bits to 32 bits float @@ -103,8 +110,11 @@ float HexFloat10ToFloat(const uint8_t* value) { uint32_t mantissa = (static_cast<uint32_t>(value[0]) & 0x1f) << 18U; uint32_t hex = exponent | mantissa; - float* hex_float = reinterpret_cast<float*>(&hex); - return *hex_float; + float hex_float; + static_assert((sizeof(uint32_t) == sizeof(float)), + "sizeof(uint32_t) != sizeof(float)"); + memcpy(&hex_float, &hex, sizeof(float)); + return hex_float; } } // namespace |