X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fvalue.c;h=baaaed48d4c396a94312917a1becc7b7bee9f7c2;hb=55c723d6462035523940e90892debcfdf872ff57;hp=49555d9a4ea3b11ce15149ebdca388722af6dcb4;hpb=a2f24e20cafce5616db69902a1594911ab026978;p=pspp-builds.git diff --git a/src/data/value.c b/src/data/value.c index 49555d9a..baaaed48 100644 --- a/src/data/value.c +++ b/src/data/value.c @@ -20,6 +20,7 @@ #include #include #include +#include "variable.h" #include "xalloc.h" @@ -46,34 +47,27 @@ value_create (int width) Only the short string portion of longer strings are compared. */ int -compare_values (const union value *a, const union value *b, int width) +compare_values_short (const void *a_, const void *b_, const void *var_) { - return (width == 0 - ? (a->f < b->f ? -1 : a->f > b->f) - : memcmp (a->s, b->s, MIN (MAX_SHORT_STRING, width))); + const union value *a = a_; + const union value *b = b_; + const struct variable *var = var_; + int width = var_get_width (var); + return value_compare_3way (a, b, MIN (width, MAX_SHORT_STRING)); } + /* Create a hash of V, which has the given WIDTH. Only the short string portion of a longer string is hashed. */ unsigned -hash_value (const union value *v, int width) +hash_value_short (const void *v_, const void *var_) { + const union value *v = v_; + const struct variable *var = var_; + int width = var_get_width (var); return (width == 0 ? hsh_hash_double (v->f) - : hsh_hash_bytes (v->s, MIN (MAX_SHORT_STRING, width))); -} - - -int -compare_ptr_values (const union value **v1, const union value **v2, int width) -{ - return compare_values (*v1, *v2, width); -} - -unsigned -hash_ptr_value (const union value **v, int width) -{ - return hash_value (*v, width); + : hsh_hash_bytes (v->s, width)); } @@ -127,3 +121,13 @@ value_resize (union value *value, int old_width, int new_width) if (new_width > old_width) memset (&value->s[old_width], ' ', new_width - old_width); } + +/* Compares A and B, which both have the given WIDTH, and returns + a strcmp()-type result. */ +int +value_compare_3way (const union value *a, const union value *b, int width) +{ + return (width == 0 + ? (a->f < b->f ? -1 : a->f > b->f) + : memcmp (a->s, b->s, width)); +}