static int long_normalize_overflow()

in src/unix/libtz/libtz.c [163:227]

• 51 lines of code
• 3 McCabe index (conditional complexity)

static int      long_normalize_overflow(long *tensptr,
                                        int *unitsptr, int base);
static int      normalize_overflow(int *tensptr, int *unitsptr,
                                   int base);
static time_t       time1(register const struct state *const sp,
                          struct tm *tmp,
                          struct tm * (*funcp)(const struct state *const sp, const time_t *,
                                               long, struct tm *),
                          long offset);
static time_t       time2(const struct state *const sp,
                          struct tm *tmp,
                          struct tm * (*funcp)(const struct state *const sp, const time_t *,
                                               long, struct tm *),
                          long offset, int *okayp);
static time_t       time2sub(register const struct state *const sp,
                             struct tm *tmp,
                             struct tm * (*funcp)(const struct state *const sp, const time_t *,
                                                  long, struct tm *),
                             long offset, int *okayp, int do_norm_secs);
static struct tm   *timesub(const time_t *timep, long offset,
                            const struct state *const sp, struct tm *tmp);
static int      tmcomp(const struct tm *atmp,
                       const struct tm *btmp);
static time_t       transtime(time_t janfirst, int year,
                              const struct rule *rulep, long offset);
static int      typesequiv(const struct state *const sp, int a, int b);
static int      tzload(const char *name, struct state *const sp,
                       int doextend);
static int      tzparse(const char *name, struct state *const sp,
                        int lastditch);

#ifdef ALL_STATE
static struct state    *gmtptr;
#endif /* defined ALL_STATE */

#ifndef ALL_STATE
static struct state gmtmem;
#define gmtptr      (&gmtmem)
#endif /* State Farm */

int gmt_is_set;

/*
** Section 4.12.3 of X3.159-1989 requires that
**  Except for the strftime function, these functions [asctime,
**  ctime, gmtime, localtime] return values in one of two static
**  objects: a broken-down time structure and an array of char.
** Thanks to Paul Eggert for noting this.
*/

static struct tm    tm;

static long
detzcode(codep)
const char *const  codep;
{
    register long   result;
    register int    i;

    result = (codep[0] & 0x80) ? ~0L : 0;
    for (i = 0; i < 4; ++i) {
        result = (result << 8) | (codep[i] & 0xff);
    }
    return result;
}