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#ifndef lint |
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static const char RCSid[] = "$Id$"; |
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#endif |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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|
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#include "g3flist.h" |
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|
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|
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static int resize_list(g3FList* fl,int sz) |
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{ |
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fl->list = (g3Float*) realloc(fl->list,(sz*fl->comp_size*sizeof(g3Float))); |
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if (!fl->list) |
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return 0; |
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fl->cap = sz; |
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if (sz < fl->size) |
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fl->size = sz; |
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if (sz == 0) |
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fl->list = NULL; |
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return 1; |
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} |
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|
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int g3fl_init(g3FList* fl,int cs) |
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{ |
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fl->cap = 0; |
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fl->size = 0; |
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fl->list = NULL; |
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fl->comp_size = cs; |
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fl->ipos = 0; |
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return resize_list(fl,G3FL_STARTCAP); |
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} |
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|
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g3FList* g3fl_create(int cs) |
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{ |
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g3FList* res = (g3FList*) malloc(sizeof(g3FList)); |
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if (!g3fl_init(res,cs)) |
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return NULL; |
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return res; |
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} |
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|
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void g3fl_free(g3FList* fl) |
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{ |
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free(fl->list); |
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free(fl); |
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} |
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|
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g3Float* g3fl_append_new(g3FList* fl) |
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{ |
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if (fl->size == fl->cap) { |
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if (!resize_list(fl,fl->cap*2)) { |
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fprintf(stderr,"Out of memory in g3fl_append_new\n"); |
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return NULL; |
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} |
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} |
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fl->size++; |
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return (&fl->list[G3FL_ID(fl,(fl->size-1))]); |
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} |
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|
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int g3fl_append(g3FList* fl,g3Float* el) |
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{ |
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g3Float* ne; |
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|
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if (!(ne = g3fl_append_new(fl))) |
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return 0; |
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memcpy(ne,el,(fl->comp_size*sizeof(g3Float))); |
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return 1; |
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} |
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|
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g3Float* g3fl_get(g3FList* fl,int id) |
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{ |
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return &(fl->list[G3FL_ID(fl,id)]); |
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} |
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|
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g3Float* g3fl_begin(g3FList* fl) |
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{ |
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if (fl->size == 0) |
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return NULL; |
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fl->ipos = 1; |
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return g3fl_get(fl,0); |
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} |
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|
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void g3fl_rewind(g3FList* fl) |
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{ |
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fl->ipos = 0; |
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} |
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|
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static int comp_sort(const g3Float* v1,const g3Float* v2) |
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{ |
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if (v1< v2) |
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return -1; |
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if (v1 > v2) |
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return 1; |
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return 0; |
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} |
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|
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int g3fl_sort(g3FList* fl,int cnum) |
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{ |
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if (cnum >= fl->comp_size) |
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return 0; |
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qsort((fl->list + cnum),fl->size,fl->comp_size*sizeof(g3Float),(int (*)(const void* v1,const void* v2)) comp_sort); |
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return 1; |
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} |
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|
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g3Float* g3fl_next(g3FList* fl) |
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{ |
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if (fl->ipos >= fl->size) |
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return NULL; |
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return g3fl_get(fl,fl->ipos++); |
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} |
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|
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g3Float* g3fl_get_copy(g3FList* fl,int id) |
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{ |
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g3Float* ne; |
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|
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if (!(ne = (g3Float*) malloc(fl->comp_size*sizeof(g3Float)))) |
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return NULL; |
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memcpy(ne,&(fl->list[G3FL_ID(fl,id)]),(fl->comp_size*sizeof(g3Float))); |
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return ne; |
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} |
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|
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int g3fl_remove(g3FList* fl,int id) |
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{ |
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if ((id < 0) || (id >= fl->size)) |
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return 0; |
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if (id < (fl->size - 1)) |
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memmove(&(fl->list[G3FL_ID(fl,id)]),&(fl->list[G3FL_ID(fl,id+1)]), |
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fl->comp_size*sizeof(g3Float)); |
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fl->size--; |
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return 1; |
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} |
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|
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int g3fl_remove_last(g3FList* fl) |
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{ |
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fl->size--; |
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if (fl->size < (fl->cap/2)) |
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return resize_list(fl,(fl->cap/2)); |
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return 1; |
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} |
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|
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|
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#ifdef TEST_FLIST |
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|
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int main(int argc,char** argv) |
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{ |
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int i; |
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g3FList* fl = g3fl_create(2); |
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g3Float* n; |
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|
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for(i=0;i<10;i++) { |
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n = g3fl_append_new(fl); |
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n[0] = i; |
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n[1] = i; |
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} |
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for(n=g3fl_begin(fl);n != NULL;n=g3fl_next(fl)) |
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printf("%f %f\n",n[0],n[1]); |
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g3fl_free(fl); |
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return EXIT_SUCCESS; |
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} |
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|
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|
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#endif |
