24    png_uint_32 uval = png_get_uint_32(buf);  in png_get_uint_31()  local
26    if (uval > PNG_UINT_31_MAX)  in png_get_uint_31()
29    return (uval);  in png_get_uint_31()
43    png_uint_32 uval = png_get_uint_32(buf);  in png_get_fixed_point()  local
45    if (uval <= PNG_UINT_31_MAX)  in png_get_fixed_point()
46       return (png_fixed_point)uval; /* known to be in range */  in png_get_fixed_point()
70    png_uint_32 uval =  in png_uint_32()  local
76    return uval;  in png_uint_32()
87    png_uint_32 uval = png_get_uint_32(buf);  in png_int_32()  local
88    if ((uval & 0x80000000) == 0) /* non-negative */  in png_int_32()
89       return (png_int_32)uval;  in png_int_32()
91    uval = (uval ^ 0xffffffff) + 1;  /* 2's complement: -x = ~x+1 */  in png_int_32()
92    if ((uval & 0x80000000) == 0) /* no overflow */  in png_int_32()
93       return -(png_int_32)uval;  in png_int_32()