Diffstat (limited to 'noncore/unsupported/qpdf/goo/GList.cc') (more/less context) (show whitespace changes)
-rw-r--r-- | noncore/unsupported/qpdf/goo/GList.cc | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/noncore/unsupported/qpdf/goo/GList.cc b/noncore/unsupported/qpdf/goo/GList.cc new file mode 100644 index 0000000..cfe0a25 --- a/dev/null +++ b/noncore/unsupported/qpdf/goo/GList.cc @@ -0,0 +1,91 @@ +//======================================================================== +// +// GList.cc +// +// Copyright 2001 Derek B. Noonburg +// +//======================================================================== + +#ifdef __GNUC__ +#pragma implementation +#endif + +#include <aconf.h> +#include <string.h> +#include "gmem.h" +#include "GList.h" + +//------------------------------------------------------------------------ +// GList +//------------------------------------------------------------------------ + +GList::GList() { + size = 8; + data = (void **)gmalloc(size * sizeof(void*)); + length = 0; + inc = 0; +} + +GList::GList(int sizeA) { + size = sizeA; + data = (void **)gmalloc(size * sizeof(void*)); + length = 0; + inc = 0; +} + +GList::~GList() { + gfree(data); +} + +void GList::append(void *p) { + if (length >= size) { + expand(); + } + data[length++] = p; +} + +void GList::append(GList *list) { + int i; + + while (length + list->length > size) { + expand(); + } + for (i = 0; i < list->length; ++i) { + data[length++] = list->data[i]; + } +} + +void GList::insert(int i, void *p) { + if (length >= size) { + expand(); + } + if (i < length) { + memmove(data+i+1, data+i, (length - i) * sizeof(void *)); + } + data[i] = p; + ++length; +} + +void *GList::del(int i) { + void *p; + + p = data[i]; + if (i < length - 1) { + memmove(data+i, data+i+1, (length - i - 1) * sizeof(void *)); + } + --length; + if (size - length >= ((inc > 0) ? inc : size/2)) { + shrink(); + } + return p; +} + +void GList::expand() { + size += (inc > 0) ? inc : size; + data = (void **)grealloc(data, size * sizeof(void*)); +} + +void GList::shrink() { + size -= (inc > 0) ? inc : size/2; + data = (void **)grealloc(data, size * sizeof(void*)); +} |