X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fvalue.h;h=fccd8a98cd4e0093928f1bf5178aa4f42ea5f9ff;hb=eca977e618f2d4c6d55d9851b9714fd60e55559b;hp=1c2a19cdb8977d3bbf911bd1d7289978a25bced8;hpb=dcf9b154cbcaa35c3d8459a201b77eec8bcb30bd;p=pspp diff --git a/src/data/value.h b/src/data/value.h index 1c2a19cdb8..fccd8a98cd 100644 --- a/src/data/value.h +++ b/src/data/value.h @@ -27,42 +27,32 @@ /* Values. */ /* Max length of a short string value, generally 8 chars. */ -#define MAX_SHORT_STRING ((SIZEOF_DOUBLE)>=8 ? ((SIZEOF_DOUBLE)+1)/2*2 : 8) -#define MIN_LONG_STRING (MAX_SHORT_STRING+1) +#define MAX_SHORT_STRING ( (SIZEOF_DOUBLE)>=8 ? (SIZEOF_DOUBLE + 1)/2 * 2 : 8 ) + +#define MIN_LONG_STRING (MAX_SHORT_STRING + 1) /* Max string length. */ -#define MAX_STRING 255 +#define MAX_LONG_STRING 255 + +/* This nonsense is required for SPSS compatibility */ +#define EFFECTIVE_LONG_STRING_LENGTH (MAX_LONG_STRING - 3) + +#define MAX_VERY_LONG_STRING 32767 + +#define MAX_STRING MAX_VERY_LONG_STRING -/* FYI: It is a bad situation if sizeof(flt64) < MAX_SHORT_STRING: - then short string missing values can be truncated in system files - because there's only room for as many characters as can fit in a - flt64. */ -#if MAX_SHORT_STRING > SHORT_NAME_LEN -#error MAX_SHORT_STRING must be less than or equal to SHORT_NAME_LEN. -#endif /* Special values. */ #define SYSMIS (-DBL_MAX) #define LOWEST second_lowest_value #define HIGHEST DBL_MAX -/* Describes one value, which is either a floating-point number or a - short string. */ +/* A numeric or short string value. + Multiple consecutive values represent a long string. */ union value { - /* A numeric value. */ double f; - - /* A short-string value. */ char s[MAX_SHORT_STRING]; - - /* Used by evaluate_expression() to return a string result. - As currently implemented, it's a pointer to a dynamic - buffer in the appropriate expression. - - Also used by the AGGREGATE procedure in handling string - values. */ - char *c; }; /* Maximum number of `union value's in a single number or string