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This adds an optional implementation for the BLAS library that does not require the use of a FORTRAN compiler. It can be enabled with EIGEN_USE_F2C_BLAS. The C implementation uses the standard gfortran calling convention and does not require the use of -ff2c when compiled with gfortran.
25 lines
657 B
C
25 lines
657 B
C
/* This contains a limited subset of the typedefs exposed by f2c
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for use by the Eigen BLAS C-only implementation.
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*/
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#ifndef __EIGEN_DATATYPES_H__
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#define __EIGEN_DATATYPES_H__
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typedef int integer;
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typedef unsigned int uinteger;
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typedef float real;
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typedef double doublereal;
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typedef struct { real r, i; } complex;
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typedef struct { doublereal r, i; } doublecomplex;
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typedef int ftnlen;
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typedef int logical;
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#define abs(x) ((x) >= 0 ? (x) : -(x))
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#define dabs(x) (doublereal)abs(x)
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#define min(a,b) ((a) <= (b) ? (a) : (b))
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#define max(a,b) ((a) >= (b) ? (a) : (b))
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#define dmin(a,b) (doublereal)min(a,b)
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#define dmax(a,b) (doublereal)max(a,b)
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#endif
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