diff options
Diffstat (limited to 'fontconfig/src/fcblanks.c')
| -rw-r--r-- | fontconfig/src/fcblanks.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/fontconfig/src/fcblanks.c b/fontconfig/src/fcblanks.c index 46698bcda..f163a8f40 100644 --- a/fontconfig/src/fcblanks.c +++ b/fontconfig/src/fcblanks.c @@ -41,6 +41,8 @@ FcBlanksCreate (void) void FcBlanksDestroy (FcBlanks *b) { + if (b->sblank == -1) + return; if (b->blanks) free (b->blanks); free (b); @@ -56,6 +58,11 @@ FcBlanksAdd (FcBlanks *b, FcChar32 ucs4) if (b->blanks[sblank] == ucs4) return FcTrue; + if (b->sblank == -1) + { + fprintf (stderr, "Unable to update the static FcBlanks: 0x%04x\n", ucs4); + return FcTrue; + } if (b->nblank == b->sblank) { sblank = b->sblank + 32; @@ -75,11 +82,26 @@ FcBlanksAdd (FcBlanks *b, FcChar32 ucs4) FcBool FcBlanksIsMember (FcBlanks *b, FcChar32 ucs4) { - int i; + int lower = 0, higher = b->nblank, middle; - for (i = 0; i < b->nblank; i++) - if (b->blanks[i] == ucs4) + if (b->nblank == 0 || + b->blanks[0] > ucs4 || + b->blanks[b->nblank - 1] < ucs4) + return FcFalse; + while (1) + { + middle = (lower + higher) / 2; + if (b->blanks[middle] == ucs4) return FcTrue; + if (middle == lower || + middle == higher) + break; + if (b->blanks[middle] < ucs4) + lower = middle + 1; + else + higher = middle - 1; + } + return FcFalse; } #define __fcblanks__ |