PNG_FP_EXPONENT  1383 3rdparty/libpng/png.c          png_fp_set(state, PNG_FP_EXPONENT);
PNG_FP_EXPONENT  1405 3rdparty/libpng/png.c          png_fp_set(state, PNG_FP_EXPONENT);
PNG_FP_EXPONENT  1409 3rdparty/libpng/png.c       case PNG_FP_EXPONENT + PNG_FP_SAW_SIGN:
PNG_FP_EXPONENT  1420 3rdparty/libpng/png.c       case PNG_FP_EXPONENT + PNG_FP_SAW_DIGIT: