CODEWITHSUNDEEP
c++android-ndk
Dean Chen
Dean Chen

Reputation: 3890

Got "does not name a type when using static variable in *.c file"

I am compiling frmts/gtiff/libtiff/tif_dirinfo.c file from GDAL using android ndk and g++. The tiffFieldArray is defined as a static variable at beginning.

static TIFFFieldArray tiffFieldArray;

Then I use it in the same file:

tiffFieldArray = { tfiatImage, 0, TIFFArrayCount(tiffFields), tiffFields };

But got error:

../../frmts/gtiff/libtiff/tif_dirinfo.c:264:1: error: 'tiffFieldArray' does not name a type

Why?

In tif_dir.h, the struct definition:

#if defined(__cplusplus)
extern "C" {
#endif

...

struct _TIFFFieldArray {
        TIFFFieldArrayType type;    /* array type, will be used to determine if IFD is image and such */
        uint32 allocated_size;      /* 0 if array is constant, other if modified by future definition extension support */
        uint32 count;               /* number of elements in fields array */
        TIFFField* fields;          /* actual field info */
};
...

#if defined(__cplusplus)
}
#endif

Upvotes: 0

Views: 259

Answers (1)

LorenzoDonati4Ukraine-OnStrike
LorenzoDonati4Ukraine-OnStrike

Reputation: 6985

You cannot assign a variable from an initializer list:

tiffFieldArray = { tfiatImage, 0, TIFFArrayCount(tiffFields), tiffFields };

this syntax works only in variable definitions, not assignments. Substitute that line with:

    tiffFieldArray[0] =  tfiatImage;
    tiffFieldArray[1] =  0;
    tiffFieldArray[2] =  TIFFArrayCount(tiffFields);
    tiffFieldArray[3] =  tiffFields;

EDIT (after mor info was added in the question)

tiffFieldArray has a misleading name, since it is a structure, not an array. Anyway the previous solution I posted cannot work in this case. Try writing:

    tiffFieldArray.type =  tfiatImage;
    tiffFieldArray.allocated_size =  0;
    tiffFieldArray.count =  TIFFArrayCount(tiffFields);
    tiffFieldArray.fields =  tiffFields;

Upvotes: 1

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