|GNU Scientific Library Reference Manual - Third Edition (v1.12)|
by M. Galassi, J. Davies, J. Theiler, B. Gough, G. Jungman, P. Alken, M. Booth, F. Rossi
Paperback (6"x9"), 592 pages, 60 figures
RRP £24.95 ($39.95)
8.2.1 Block allocation
The functions for allocating memory to a block follow the style of
free. In addition they also perform their own
error checking. If there is insufficient memory available to allocate a
block then the functions call the GSL error handler (with an error
GSL_ENOMEM) in addition to returning a null
pointer. Thus if you use the library error handler to abort your program
then it isn't necessary to check every
- Function: gsl_block * gsl_block_alloc (size_t n)
- This function allocates memory for a block of n double-precision
elements, returning a pointer to the block struct. The block is not
initialized and so the values of its elements are undefined. Use the
gsl_block_callocif you want to ensure that all the elements are initialized to zero.
A null pointer is returned if insufficient memory is available to create the block.
- Function: gsl_block * gsl_block_calloc (size_t n)
- This function allocates memory for a block and initializes all the elements of the block to zero.
- Function: void gsl_block_free (gsl_block * b)
- This function frees the memory used by a block b previously
gsl_block_calloc. The block b must be a valid block object (a null pointer is not allowed).
|ISBN 0954612078||GNU Scientific Library Reference Manual - Third Edition (v1.12)||See the print edition|