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author | Allen Byrne <byrn@hdfgroup.org> | 2020-07-22 20:03:22 (GMT) |
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committer | Allen Byrne <byrn@hdfgroup.org> | 2020-07-22 20:03:22 (GMT) |
commit | 099c7242fbdf698cbb13339bfc71f38b8f363dfe (patch) | |
tree | 1ed51040cf41c16f2c55db79133ca86dfa0d3052 /test/h5test.h | |
parent | 0ee5d676210291f784ce273ee34b1a7d383ec694 (diff) | |
download | hdf5-099c7242fbdf698cbb13339bfc71f38b8f363dfe.zip hdf5-099c7242fbdf698cbb13339bfc71f38b8f363dfe.tar.gz hdf5-099c7242fbdf698cbb13339bfc71f38b8f363dfe.tar.bz2 |
Merge from dev of tools changes
Diffstat (limited to 'test/h5test.h')
-rw-r--r-- | test/h5test.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/test/h5test.h b/test/h5test.h index 27de161..0d937e1 100644 --- a/test/h5test.h +++ b/test/h5test.h @@ -124,6 +124,65 @@ H5TEST_DLLVAR MPI_Info h5_io_info_g; /* MPI INFO object for IO */ /* Flags for h5_fileaccess_flags() */ #define H5_FILEACCESS_VFD 0x01 +/* Macros to create and fill 2D arrays with a single heap allocation. + * These can be used to replace large stack and global arrays which raise + * warnings. + * + * The macros make a single heap allocation large enough to hold all the + * pointers and the data elements. The first part of the allocation holds + * the pointers, and the second part holds the data as a contiguous block + * in row-major order. + * + * To pass the data block to calls like H5Dread(), pass a pointer to the + * first array element as the data pointer (e.g., array[0] in a 2D array). + * + * The fill macro just fills the array with an increasing count value. + * + * Usage: + * + * int **array; + * + * H5TEST_ALLOCATE_2D_ARRAY(array, int, 5, 10); + * + * H5TEST_FILL_2D_ARRAY(array, int, 5, 10); + * + * (do stuff) + * + * HDfree(array); + */ +#define H5TEST_ALLOCATE_2D_ARRAY(ARR, TYPE, DIMS_I, DIMS_J) \ +do { \ + /* Prefix with h5taa to avoid shadow warnings */ \ + size_t h5taa_pointers_size = 0; \ + size_t h5taa_data_size = 0; \ + int h5taa_i; \ + \ + h5taa_pointers_size = (DIMS_I) * sizeof(TYPE *); \ + h5taa_data_size = (DIMS_I) * (DIMS_J) * sizeof(TYPE); \ + \ + ARR = (TYPE **)HDmalloc(h5taa_pointers_size + h5taa_data_size); \ + \ + ARR[0] = (TYPE *)(ARR + (DIMS_I)); \ + \ + for (h5taa_i = 1; h5taa_i < (DIMS_I); h5taa_i++) \ + ARR[h5taa_i] = ARR[h5taa_i-1] + (DIMS_J); \ +} while(0) + +#define H5TEST_FILL_2D_ARRAY(ARR, TYPE, DIMS_I, DIMS_J) \ +do { \ + /* Prefix with h5tfa to avoid shadow warnings */ \ + int h5tfa_i = 0; \ + int h5tfa_j = 0; \ + TYPE h5tfa_count = 0; \ + \ + for (h5tfa_i = 0; h5tfa_i < (DIMS_I); h5tfa_i++) \ + for (h5tfa_j = 0; h5tfa_j < (DIMS_J); h5tfa_j++) { \ + ARR[h5tfa_i][h5tfa_j] = h5tfa_count; \ + h5tfa_count++; \ + } \ +} while(0) + + #ifdef __cplusplus extern "C" { #endif |