SIGI

Units

complete list of units

defaults are bold

energy	GeV	MeV	keV
length	m	cm	mm	mym
angle	rad	deg

C++ preprocessor

#include "file"

inserts contents of file.

#define MACRO_NAME

make MACRO_NAME known to the preprocessor, this is useful with e.g. #if directives.

#define MACRO_NAME value

does the same and in addition any occurrence of MACRO_NAME after this line is replaced by value.

#undef MACRO_NAME

inverse of #define

#if, #elif, #endif

conditionals have the folwing structure

#if test_1

   ini file text 1

#elif test_2

   ini file text 2

   .

   .

#elif test_n

   ini file text n

#endif

where test_i is of the form

• defined(MACRO_NAME)
• (MACRO_NAME == INT VALUE)
• logical connections of the above with
  • ! <=> not
  • || <=> or
  • && <=> and

#idef MACRO_NAME, #ifndef MACRO_NAME

same as #if defined(MACRO_NAME) and #if !defined(MACRO_NAME) respectively

#error token

write token to stdout.

                                    last changed by Uwe Roß on 31 Jan 1996