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Fix unused error variable #60

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Fix unused error variable #60

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6 changes: 1 addition & 5 deletions lodepng.cpp
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Expand Up @@ -5224,7 +5224,6 @@ static unsigned filter(unsigned char* out, const unsigned char* in, unsigned w,
size_t bytewidth = (bpp + 7) / 8;
const unsigned char* prevline = 0;
unsigned x, y;
unsigned error = 0;
LodePNGFilterStrategy strategy = settings->filter_strategy;

/*
Expand Down Expand Up @@ -5270,8 +5269,6 @@ static unsigned filter(unsigned char* out, const unsigned char* in, unsigned w,
if(!attempt[type]) return 83; /*alloc fail*/
}

if(!error)
{
for(y = 0; y != h; ++y)
{
/*try the 5 filter types*/
Expand Down Expand Up @@ -5311,7 +5308,6 @@ static unsigned filter(unsigned char* out, const unsigned char* in, unsigned w,
out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/
for(x = 0; x != linebytes; ++x) out[y * (linebytes + 1) + 1 + x] = attempt[bestType][x];
}
}

for(type = 0; type != 5; ++type) lodepng_free(attempt[type]);
}
Expand Down Expand Up @@ -5425,7 +5421,7 @@ static unsigned filter(unsigned char* out, const unsigned char* in, unsigned w,
}
else return 88; /* unknown filter strategy */

return error;
return 0;
}

static void addPaddingBits(unsigned char* out, const unsigned char* in,
Expand Down