shithub: fnt

Download patch

ref: 96da9f096612bfdb3c7204c14f1ed913e19cbcfe
parent: 5877598b3b65ae59ec9d1447e222af4b1e848911
author: Sigrid Solveig Haflínudóttir <sigrid@ftrv.se>
date: Sun Jul 14 21:37:13 EDT 2024 

fix unused "b" warnings


--- a/gen.rkt
+++ b/gen.rkt
@@ -414,7 +414,7 @@
              (~a "int")
              (~a "read_" (cmplx-name c) "(Otf *o, " (cmplx-name c) " *v)")
              (~a "{")
-             (~a "	u8int *b;"))
+             (~a "	u8int *b = nil; USED(b);"))
        (indent (map gen-group-c (group-fields (cmplx-fields c))))
        (indent (filter-extra (cmplx-extra c) 'read))
        (list (~a "	return 0;")
--- a/plan9/otf.c
+++ b/plan9/otf.c
@@ -622,7 +622,7 @@
 int
 read_SubHeader(Otf *o, SubHeader *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->firstCode = b[0]<<8 | b[1];
@@ -648,7 +648,7 @@
 int
 read_MapGroup(Otf *o, MapGroup *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 12)) == nil)
 		goto err;
 	v->startCharCode = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -672,7 +672,7 @@
 int
 read_SubtableCmap0(Otf *o, SubtableCmap0 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 260)) == nil)
 		goto err;
 	v->length = b[0]<<8 | b[1];
@@ -698,7 +698,7 @@
 int
 read_SubtableCmap2(Otf *o, SubtableCmap2 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 516)) == nil)
 		goto err;
 	v->length = b[0]<<8 | b[1];
@@ -724,7 +724,7 @@
 int
 read_SubtableCmap4(Otf *o, SubtableCmap4 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 12)) == nil)
 		goto err;
 	v->length = b[0]<<8 | b[1];
@@ -785,7 +785,7 @@
 int
 read_SubtableCmap6(Otf *o, SubtableCmap6 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->length = b[0]<<8 | b[1];
@@ -818,7 +818,7 @@
 int
 read_SubtableCmap8(Otf *o, SubtableCmap8 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8200)) == nil)
 		goto err;
 	v->length = b[0]<<8 | b[1];
@@ -854,7 +854,7 @@
 int
 read_SubtableCmap10(Otf *o, SubtableCmap10 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 18)) == nil)
 		goto err;
 	v->reserved = b[0]<<8 | b[1];
@@ -882,7 +882,7 @@
 int
 read_SubtableCmap12or13(Otf *o, SubtableCmap12or13 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 14)) == nil)
 		goto err;
 	v->reserved = b[0]<<8 | b[1];
@@ -916,7 +916,7 @@
 int
 read_UnicodeRange(Otf *o, UnicodeRange *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->startUnicodeValue = b[0]<<16 | b[1]<<8 | b[2];
@@ -938,7 +938,7 @@
 int
 read_DefaultUVS(Otf *o, DefaultUVS *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->numUnicodeValueRanges = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -966,7 +966,7 @@
 int
 read_UVSMapping(Otf *o, UVSMapping *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 5)) == nil)
 		goto err;
 	v->unicodeValue = b[0]<<16 | b[1]<<8 | b[2];
@@ -988,7 +988,7 @@
 int
 read_NonDefaultUVS(Otf *o, NonDefaultUVS *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->numUVSMappings = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -1016,7 +1016,7 @@
 int
 read_VariationSelector(Otf *o, VariationSelector *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 11)) == nil)
 		goto err;
 	v->varSelector = b[0]<<16 | b[1]<<8 | b[2];
@@ -1068,7 +1068,7 @@
 int
 read_SubtableCmap14(Otf *o, SubtableCmap14 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->length = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -1098,7 +1098,7 @@
 int
 read_SubtableCmap(Otf *o, SubtableCmap *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->format = b[0]<<8 | b[1];
@@ -1202,7 +1202,7 @@
 int
 read_EncodingRecord(Otf *o, EncodingRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->platformID = b[0]<<8 | b[1];
@@ -1244,7 +1244,7 @@
 int
 read_TableCmap(Otf *o, TableCmap *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	u16int version = b[0]<<8 | b[1];
@@ -1277,7 +1277,7 @@
 int
 read_TableHead(Otf *o, TableHead *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 54)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -1351,7 +1351,7 @@
 int
 read_TableHhea(Otf *o, TableHhea *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 36)) == nil)
 		goto err;
 	v->majorVersion = b[0]<<8 | b[1];
@@ -1410,7 +1410,7 @@
 int
 read_Glyf(Otf *o, Glyf *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 10)) == nil)
 		goto err;
 	v->numberOfContours = b[0]<<8 | b[1];
@@ -1450,7 +1450,7 @@
 int
 read_LongHorMetric(Otf *o, LongHorMetric *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->advanceWidth = b[0]<<8 | b[1];
@@ -1472,7 +1472,7 @@
 int
 read_TableMaxp(Otf *o, TableMaxp *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	u32int version = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -1498,7 +1498,7 @@
 int
 read_TableHmtx(Otf *o, TableHmtx *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if(otfarray(o, &v->hMetrics, read_LongHorMetric, sizeof(LongHorMetric), o->numberOfHMetrics) < 0){
 		werrstr("%s: %r", "hMetrics");
 		goto err;
@@ -1529,7 +1529,7 @@
 int
 read_TablePost(Otf *o, TablePost *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 16)) == nil)
 		goto err;
 	u32int version = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -1560,7 +1560,7 @@
 int
 read_NameRecord(Otf *o, NameRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 12)) == nil)
 		goto err;
 	v->platformID = b[0]<<8 | b[1];
@@ -1602,7 +1602,7 @@
 int
 read_LangTagRecord(Otf *o, LangTagRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->length = b[0]<<8 | b[1];
@@ -1635,7 +1635,7 @@
 int
 read_TableName(Otf *o, TableName *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->version = b[0]<<8 | b[1];
@@ -1691,7 +1691,7 @@
 int
 read_BigGlyphMetrics(Otf *o, BigGlyphMetrics *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->height = b[0];
@@ -1725,7 +1725,7 @@
 int
 read_SmallGlyphMetrics(Otf *o, SmallGlyphMetrics *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 5)) == nil)
 		goto err;
 	v->height = b[0];
@@ -1753,7 +1753,7 @@
 int
 read_SbitLineMetrics(Otf *o, SbitLineMetrics *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 12)) == nil)
 		goto err;
 	v->ascender = b[0];
@@ -1791,7 +1791,7 @@
 int
 read_IndexSubtable1(Otf *o, IndexSubtable1 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, ((o->lastGlyphIndex-o->firstGlyphIndex)+2)*4)) == nil)
 		goto err;
 	v->sbitOffsets = malloc(((o->lastGlyphIndex-o->firstGlyphIndex)+2)*sizeof(*v->sbitOffsets));
@@ -1814,7 +1814,7 @@
 int
 read_IndexSubtable2(Otf *o, IndexSubtable2 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->imageSize = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -1840,7 +1840,7 @@
 int
 read_IndexSubtable3(Otf *o, IndexSubtable3 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, ((o->lastGlyphIndex-o->firstGlyphIndex)+2)*2)) == nil)
 		goto err;
 	v->sbitOffsets = malloc(((o->lastGlyphIndex-o->firstGlyphIndex)+2)*sizeof(*v->sbitOffsets));
@@ -1863,7 +1863,7 @@
 int
 read_GlyphIdOffsetPair(Otf *o, GlyphIdOffsetPair *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->glyphID = b[0]<<8 | b[1];
@@ -1885,7 +1885,7 @@
 int
 read_IndexSubtable4(Otf *o, IndexSubtable4 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->numGlyphs = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -1913,7 +1913,7 @@
 int
 read_IndexSubtable5(Otf *o, IndexSubtable5 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->imageSize = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -1950,7 +1950,7 @@
 int
 read_IndexSubtable(Otf *o, IndexSubtable *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->indexFormat = b[0]<<8 | b[1];
@@ -2028,7 +2028,7 @@
 int
 read_IndexSubtableRecord(Otf *o, IndexSubtableRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->firstGlyphIndex = b[0]<<8 | b[1];
@@ -2068,7 +2068,7 @@
 int
 read_BitmapSize(Otf *o, BitmapSize *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 16)) == nil)
 		goto err;
 	v->indexSubtableListOffset = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -2132,7 +2132,7 @@
 int
 read_TableEBDT(Otf *o, TableEBDT *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->majorVersion = b[0]<<8 | b[1];
@@ -2161,7 +2161,7 @@
 int
 read_TableEBLC(Otf *o, TableEBLC *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -2199,7 +2199,7 @@
 int
 read_AttachList(Otf *o, AttachList *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->coverageOffset = b[0]<<8 | b[1];
@@ -2228,7 +2228,7 @@
 int
 read_AttachPoint(Otf *o, AttachPoint *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->pointCount = b[0]<<8 | b[1];
@@ -2255,7 +2255,7 @@
 int
 read_LigCaretList(Otf *o, LigCaretList *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->coverageOffset = b[0]<<8 | b[1];
@@ -2284,7 +2284,7 @@
 int
 read_LigGlyph(Otf *o, LigGlyph *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->caretCount = b[0]<<8 | b[1];
@@ -2311,7 +2311,7 @@
 int
 read_CaretValue(Otf *o, CaretValue *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->format = b[0]<<8 | b[1];
@@ -2356,7 +2356,7 @@
 int
 read_ValueRecord(Otf *o, ValueRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 16)) == nil)
 		goto err;
 	v->xPlacement = b[0]<<8 | b[1];
@@ -2390,7 +2390,7 @@
 int
 read_SinglePos(Otf *o, SinglePos *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->format = b[0]<<8 | b[1];
@@ -2447,7 +2447,7 @@
 int
 read_TableGDEF(Otf *o, TableGDEF *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 12)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -2498,7 +2498,7 @@
 int
 read_LangSys(Otf *o, LangSys *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->requiredFeatureIndex = b[2]<<8 | b[3];
@@ -2527,7 +2527,7 @@
 int
 read_LangSysRecord(Otf *o, LangSysRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->langSysTag = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -2563,7 +2563,7 @@
 int
 read_Script(Otf *o, Script *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->defaultLangSysOffset = b[0]<<8 | b[1];
@@ -2607,7 +2607,7 @@
 int
 read_ScriptRecord(Otf *o, ScriptRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->scriptTag = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -2643,7 +2643,7 @@
 int
 read_ScriptList(Otf *o, ScriptList *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->scriptCount = b[0]<<8 | b[1];
@@ -2671,7 +2671,7 @@
 int
 read_Feature(Otf *o, Feature *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->featureParamsOffset = b[0]<<8 | b[1];
@@ -2700,7 +2700,7 @@
 int
 read_FeatureRecord(Otf *o, FeatureRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->featureTag = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -2736,7 +2736,7 @@
 int
 read_FeatureList(Otf *o, FeatureList *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->featureCount = b[0]<<8 | b[1];
@@ -2764,7 +2764,7 @@
 int
 read_Lookup(Otf *o, Lookup *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->lookupType = b[0]<<8 | b[1];
@@ -2799,7 +2799,7 @@
 int
 read_LookupList(Otf *o, LookupList *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->lookupCount = b[0]<<8 | b[1];
@@ -2826,7 +2826,7 @@
 int
 read_TableGPOS(Otf *o, TableGPOS *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 10)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -2910,7 +2910,7 @@
 int
 read_TableGSUB(Otf *o, TableGSUB *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 10)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -2980,7 +2980,7 @@
 int
 read_MathValueRecord(Otf *o, MathValueRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->value = b[0]<<8 | b[1];
@@ -3002,7 +3002,7 @@
 int
 read_MathConstants(Otf *o, MathConstants *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->scriptPercentScaleDown = b[0]<<8 | b[1];
@@ -3338,7 +3338,7 @@
 int
 read_MathItalicsCorrectionInfo(Otf *o, MathItalicsCorrectionInfo *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->italicsCorrectionCoverageOffset = b[0]<<8 | b[1];
@@ -3368,7 +3368,7 @@
 int
 read_MathTopAccentAttachment(Otf *o, MathTopAccentAttachment *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->topAccentCoverageOffset = b[0]<<8 | b[1];
@@ -3398,7 +3398,7 @@
 int
 read_MathKernInfoRecord(Otf *o, MathKernInfoRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->topRightMathKernOffset = b[0]<<8 | b[1];
@@ -3424,7 +3424,7 @@
 int
 read_MathKernInfo(Otf *o, MathKernInfo *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->mathKernCoverageOffset = b[0]<<8 | b[1];
@@ -3454,7 +3454,7 @@
 int
 read_MathKern(Otf *o, MathKern *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->heightCount = b[0]<<8 | b[1];
@@ -3490,7 +3490,7 @@
 int
 read_Coverage1(Otf *o, Coverage1 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->glyphCount = b[0]<<8 | b[1];
@@ -3517,7 +3517,7 @@
 int
 read_RangeRecord(Otf *o, RangeRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->startGlyphID = b[0]<<8 | b[1];
@@ -3541,7 +3541,7 @@
 int
 read_Coverage2(Otf *o, Coverage2 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->rangeCount = b[0]<<8 | b[1];
@@ -3569,7 +3569,7 @@
 int
 read_Coverage(Otf *o, Coverage *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->format = b[0]<<8 | b[1];
@@ -3613,7 +3613,7 @@
 int
 read_MathVariants(Otf *o, MathVariants *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 10)) == nil)
 		goto err;
 	v->minConnectorOverlap = b[0]<<8 | b[1];
@@ -3683,7 +3683,7 @@
 int
 read_MathGlyphInfo(Otf *o, MathGlyphInfo *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->mathItalicsCorrectionInfoOffset = b[0]<<8 | b[1];
@@ -3765,7 +3765,7 @@
 int
 read_MathGlyphVariantRecord(Otf *o, MathGlyphVariantRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->variantGlyph = b[0]<<8 | b[1];
@@ -3787,7 +3787,7 @@
 int
 read_GlyphPart(Otf *o, GlyphPart *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 10)) == nil)
 		goto err;
 	v->glyphID = b[0]<<8 | b[1];
@@ -3815,7 +3815,7 @@
 int
 read_GlyphAssembly(Otf *o, GlyphAssembly *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if(read_MathValueRecord(o, &v->italicsCorrection) < 0){
 		werrstr("%s: %r", "italicsCorrection");
 		goto err;
@@ -3849,7 +3849,7 @@
 int
 read_MathGlyphConstruction(Otf *o, MathGlyphConstruction *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->glyphAssemblyOffset = b[0]<<8 | b[1];
@@ -3893,7 +3893,7 @@
 int
 read_TableMATH(Otf *o, TableMATH *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 10)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -3969,7 +3969,7 @@
 int
 read_KernPair(Otf *o, KernPair *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->left = b[0]<<8 | b[1];
@@ -3993,7 +3993,7 @@
 int
 read_KernSubtable0(Otf *o, KernSubtable0 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->nPairs = b[0]<<8 | b[1];
@@ -4027,7 +4027,7 @@
 int
 read_KernClass(Otf *o, KernClass *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->firstGlyph = b[0]<<8 | b[1];
@@ -4056,7 +4056,7 @@
 int
 read_KernSubtable2(Otf *o, KernSubtable2 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->rowWidth = b[0]<<8 | b[1];
@@ -4117,7 +4117,7 @@
 int
 read_KernSubtable(Otf *o, KernSubtable *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	u16int version = b[0]<<8 | b[1];
@@ -4148,7 +4148,7 @@
 int
 read_TableKern(Otf *o, TableKern *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	u16int version = b[0]<<8 | b[1];
@@ -4181,7 +4181,7 @@
 int
 read_TableLoca(Otf *o, TableLoca *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if(o->indexToLocFormat == 0){
 		if((b = otfreadn(o, (o->numGlyphs+1)*2)) == nil)
 			goto err;
@@ -4219,7 +4219,7 @@
 int
 read_VariationAxisRecord(Otf *o, VariationAxisRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 20)) == nil)
 		goto err;
 	v->axisTag = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -4249,7 +4249,7 @@
 int
 read_UserTuple(Otf *o, UserTuple *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, o->axisCount*4)) == nil)
 		goto err;
 	v->coordinates = malloc(o->axisCount*sizeof(*v->coordinates));
@@ -4272,7 +4272,7 @@
 int
 read_InstanceRecord(Otf *o, InstanceRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->subfamilyNameID = b[0]<<8 | b[1];
@@ -4305,7 +4305,7 @@
 int
 read_AxisInstances(Otf *o, AxisInstances *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if(otfarray(o, &v->axes, read_VariationAxisRecord, sizeof(VariationAxisRecord), o->axisCount) < 0){
 		werrstr("%s: %r", "axes");
 		goto err;
@@ -4337,7 +4337,7 @@
 int
 read_TableFvar(Otf *o, TableFvar *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 16)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -4395,7 +4395,7 @@
 int
 read_RegionAxisCoordinates(Otf *o, RegionAxisCoordinates *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->startCoord = (b[0]<<8 | b[1]>>14)+(b[0]<<8 | b[1]&((1<<14)-1))/16384.0;
@@ -4419,7 +4419,7 @@
 int
 read_VariationRegion(Otf *o, VariationRegion *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if(otfarray(o, &v->regionAxes, read_RegionAxisCoordinates, sizeof(RegionAxisCoordinates), o->axisCount) < 0){
 		werrstr("%s: %r", "regionAxes");
 		goto err;
@@ -4443,7 +4443,7 @@
 int
 read_VariationRegionList(Otf *o, VariationRegionList *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->axisCount = b[0]<<8 | b[1];
@@ -4473,7 +4473,7 @@
 int
 read_ItemVariationData(Otf *o, ItemVariationData *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 6)) == nil)
 		goto err;
 	v->itemCount = b[0]<<8 | b[1];
@@ -4504,7 +4504,7 @@
 int
 read_ItemVariationStore(Otf *o, ItemVariationStore *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	u16int format = b[0]<<8 | b[1];
@@ -4538,7 +4538,7 @@
 int
 read_DeltaSetIndexMap(Otf *o, DeltaSetIndexMap *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->format = b[0];
@@ -4582,7 +4582,7 @@
 int
 read_TableHVAR(Otf *o, TableHVAR *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 20)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -4674,7 +4674,7 @@
 int
 read_TableFFTM(Otf *o, TableFFTM *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->version = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -4707,7 +4707,7 @@
 int
 read_SignatureBlock1(Otf *o, SignatureBlock1 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->signatureLength = b[4]<<24 | b[5]<<16 | b[6]<<8 | b[7];
@@ -4734,7 +4734,7 @@
 int
 read_SignatureRecord(Otf *o, SignatureRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 12)) == nil)
 		goto err;
 	v->format = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -4776,7 +4776,7 @@
 int
 read_TableDSIG(Otf *o, TableDSIG *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	u32int version = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -4811,7 +4811,7 @@
 int
 read_AxisRecord(Otf *o, AxisRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	v->axisTag = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -4838,7 +4838,7 @@
 int
 read_DesignAxes(Otf *o, DesignAxes *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if(otfarray(o, &v->designAxes, read_AxisRecord, sizeof(AxisRecord), o->designAxisCount) < 0){
 		werrstr("%s: %r", "designAxes");
 		goto err;
@@ -4869,7 +4869,7 @@
 int
 read_TableSTAT(Otf *o, TableSTAT *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 18)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -4932,7 +4932,7 @@
 int
 read_GaspRange(Otf *o, GaspRange *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->rangeMaxPPEM = b[0]<<8 | b[1];
@@ -4954,7 +4954,7 @@
 int
 read_TableGasp(Otf *o, TableGasp *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->version = b[0]<<8 | b[1];
@@ -4988,7 +4988,7 @@
 int
 read_Tuple(Otf *o, Tuple *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, o->axisCount*2)) == nil)
 		goto err;
 	v->coordinates = malloc(o->axisCount*sizeof(*v->coordinates));
@@ -5011,7 +5011,7 @@
 int
 read_TupleVariationHeader(Otf *o, TupleVariationHeader *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->variationDataSize = b[0]<<8 | b[1];
@@ -5051,7 +5051,7 @@
 int
 read_GlyphVariationData(Otf *o, GlyphVariationData *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->tupleVariationCount = b[0]<<8 | b[1];
@@ -5081,7 +5081,7 @@
 int
 read_TableGvar(Otf *o, TableGvar *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 20)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -5157,7 +5157,7 @@
 int
 read_AxisValueMap(Otf *o, AxisValueMap *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 4)) == nil)
 		goto err;
 	v->fromCoordinate = (b[0]<<8 | b[1]>>14)+(b[0]<<8 | b[1]&((1<<14)-1))/16384.0;
@@ -5179,7 +5179,7 @@
 int
 read_SegmentMaps(Otf *o, SegmentMaps *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 2)) == nil)
 		goto err;
 	v->positionMapCount = b[0]<<8 | b[1];
@@ -5207,7 +5207,7 @@
 int
 read_TableAvar(Otf *o, TableAvar *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 8)) == nil)
 		goto err;
 	u16int majorVersion = b[0]<<8 | b[1];
@@ -5245,7 +5245,7 @@
 int
 read_TableOS∕2(Otf *o, TableOS∕2 *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 78)) == nil)
 		goto err;
 	v->version = b[0]<<8 | b[1];
@@ -5368,7 +5368,7 @@
 int
 read_TableRecord(Otf *o, TableRecord *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 16)) == nil)
 		goto err;
 	v->tableTag = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];
@@ -5394,7 +5394,7 @@
 int
 read_TableDirectory(Otf *o, TableDirectory *v)
 {
-	u8int *b;
+	u8int *b = nil; USED(b);
 	if((b = otfreadn(o, 12)) == nil)
 		goto err;
 	v->sfntVersion = b[0]<<24 | b[1]<<16 | b[2]<<8 | b[3];