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Signedness revisions.

Alexei Podtelezhnikov requested to merge unsigned-revisions into master

This eliminates explicit casting by switching to unsigned variables. The revised variables are frequently used together.

  • include/freetype/fttypes.h (FT_Data): Change to unsigned length.

  • include/freetype/internal/tttypes.h (TT_LoaderRec): Change to unsigned byte_len.

  • include/freetype/t1tables.h (CID_FaceInfoRec): Change to unsigned gd_bytes and gd_bytes.

  • src/cff/cffgload.c (cff_get_glyph_data, cff_free_glyph_data): Updated.

  • src/cid/cidgload.c (cid_load_glyph): Updated.

  • src/cid/cidload.h (cid_get_offset): Update argument.

  • src/cid/cidload.c (cid_get_offset, cid_face_open): Updated.

  • src/psaux/psft.c (cf2_getT1SeacComponent): Updated.

  • src/truetype/ttgload.c (TT_Process_Composite_Glyph, load_truetype_glyph): Updated.

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