gcc/testsuite/gcc.dg/pr43402.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O1 -fno-inline" } */
   3 extern void abort (void);
   4
   5 static int something;
   6
   7 static int * converterData[2]={
   8     &something, &something,
   9 };
  10
  11 static struct {
  12   const char *name;
  13   int type;
  14 } const cnvNameType[] = {
  15   { "bocu1", 1 },
  16   { "utf7", 1 },
  17   { "utf8", 1 }
  18 };
  19
  20
  21 const int * getAlgorithmicTypeFromName(const char *realName);
  22 const int *
  23 getAlgorithmicTypeFromName(const char *realName)
  24 {
  25     unsigned mid, start, limit;
  26     unsigned lastMid;
  27     int result;
  28     start = 0;
  29     limit = sizeof(cnvNameType)/sizeof(cnvNameType[0]);
  30     mid = limit;
  31     lastMid = 0xffffffff;
  32
  33     for (;;) {
  34         mid = (start + limit) / 2;
  35         if (lastMid == mid) {   /* Have we moved? */
  36             break;  /* We haven't moved, and it wasn't found. */
  37         }
  38         lastMid = mid;
  39         result = __builtin_strcmp(realName, cnvNameType[mid].name);
  40
  41         if (result < 0) {
  42             limit = mid;
  43         } else if (result > 0) {
  44             start = mid;
  45         } else {
  46             return converterData[cnvNameType[mid].type];
  47         }
  48     }
  49
  50     return 0;
  51 }
  52
  53 int main (void)
  54 {
  55   if (!getAlgorithmicTypeFromName ("utf8"))
  56     abort ();
  57   return 0;
  58 }