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xt_realloc(3) Library Functions Manual xt_realloc(3) LIBRARY #include <xtend/mem.h> -lxtend SYNOPSIS void *xt_realloc(void *array, size_t nelem, size_t size) ARGUMENTS array: Address of the previously allocated array nelem: Number of objects to allocate size: Size of a single object DESCRIPTION xt_realloc() is a simple wrapper around realloc(3) that requires three ar- guments representing the original array, the new number of objects to allo- cate and the size of an element. This prevents the very common mistake with realloc(3) of forgetting to multiply by the size of an element. Specifying the size using sizeof(*variable) has the advantage of being type-independent. I.e. if you change the type of the variable, this code need not be updated. Simply add one * to whatever the return value is as- signed to. RETURN VALUES Address of the newly allocated array, or NULL if allocation failed EXAMPLES size_t widget_list_size = 1024; widget_t *widgets; widgets = xt_malloc(widget_list_size, sizeof(*widgets)); widget_list_size *= 2; widgets = xt_realloc(widgets, widget_list_size, sizeof(*widgets)); SEE ALSO realloc(3) xt_realloc(3)
LIBRARY | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURN VALUES | EXAMPLES | SEE ALSO
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