| MACRO ( DEFINE_FLOAT ) |
| #find float symbol |
| CHECK_CXX_SOURCE_COMPILES(" |
| #include <math.h> |
| int main(){ float_t x=0.0; }" |
| HAVE_SYMBOL_FLOAT_T) |
| |
| IF ( NOT HAVE_SYMBOL_FLOAT_T ) |
| #try using FLT_EVAL_METHOD |
| CHECK_CXX_SOURCE_COMPILES(" |
| #define FLT_EVAL_METHOD 2 |
| #include <math.h> |
| int main(){ float_t x=0.0; }" |
| HAVE_SYMBOL_FLOAT_T) |
| |
| IF ( HAVE_SYMBOL_FLOAT_T ) |
| SET ( _FLT_EVAL_METHOD 2 ) |
| SET ( TYPE_FLOAT_T "/* undef float_t*/" ) |
| ENDIF ( HAVE_SYMBOL_FLOAT_T ) |
| |
| ELSE ( NOT HAVE_SYMBOL_FLOAT_T ) |
| SET ( TYPE_FLOAT_T "/* undef float_t*/" ) |
| ENDIF ( NOT HAVE_SYMBOL_FLOAT_T ) |
| |
| IF ( NOT HAVE_SYMBOL_FLOAT_T ) |
| #todo: could we do a better guess here? |
| SET ( TYPE_FLOAT_T "typedef double float_t;" ) |
| ENDIF ( NOT HAVE_SYMBOL_FLOAT_T ) |
| ENDMACRO ( DEFINE_FLOAT ) |
