一个 scalar 等于多少个字节？

[Yufeng Wei]

求问各位大神，一个 scalar 等于多少个字节？

为啥我电脑上测出来是 16 bytes？

scalar 是个 long doble 么？

[Cp_Zhao]

在OpenFOAM/primitives/Scalar/scalar/scalarFwd.H中：

//- A typedef for float
typedef float floatScalar;

//- A typedef for double
typedef double doubleScalar;


#if defined(WM_SP)

typedef floatScalar scalar;
typedef floatScalar solveScalar;

#elif defined(WM_SPDP)

typedef floatScalar scalar;
typedef doubleScalar solveScalar;

#elif defined(WM_DP)

typedef doubleScalar scalar;
typedef doubleScalar solveScalar;

#else
//    #error "PRECISION must be set to WM_SP, WM_SPDP or WM_DP"
#endif

[Yufeng Wei]

懂了。谢谢大佬