diff options
| -rw-r--r-- | lib/libppmcolor.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/lib/libppmcolor.c b/lib/libppmcolor.c index 5870d2c5..f37ec564 100644 --- a/lib/libppmcolor.c +++ b/lib/libppmcolor.c @@ -421,15 +421,18 @@ ppm_colorname(const pixel * const colorP, f = pm_openColornameFile(NULL, !hexok); if (f != NULL) { - int bestDiff, thisDiff; + int bestDiff; bool eof; - bestDiff = 32767; - eof = FALSE; - while (!eof && bestDiff > 0 ) { + for (bestDiff = 32767, eof = FALSE; + !eof && bestDiff > 0; ) { struct colorfile_entry const ce = pm_colorget(f); if (ce.colorname) { - thisDiff = abs(r - ce.r) + abs(g - ce.g) + abs(b - ce.b); + int const thisDiff = + abs(r - (int)ce.r) + + abs(g - (int)ce.g) + + abs(b - (int)ce.b); + if (thisDiff < bestDiff) { bestDiff = thisDiff; strcpy(colorname, ce.colorname); |