GRASS Programmer's Manual 6.4.1(2011)
update.c
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00001 
00017 #include <stdlib.h>
00018 #include <grass/gis.h>
00019 #include <grass/Vect.h>
00020 
00026 void dig_line_reset_updated(struct Plus_head *Plus)
00027 {
00028     Plus->n_uplines = 0;
00029 }
00030 
00037 void dig_line_add_updated(struct Plus_head *Plus, int line)
00038 {
00039     int i;
00040 
00041     G_debug(3, "dig_line_add_updated(): line = %d", line);
00042 
00043     /* Check if already in list */
00044     for (i = 0; i < Plus->n_uplines; i++)
00045         if (Plus->uplines[i] == line)
00046             return;
00047 
00048     /* Alloc space if needed */
00049     if (Plus->n_uplines == Plus->alloc_uplines) {
00050         Plus->alloc_uplines += 1000;
00051         Plus->uplines =
00052             (int *)G_realloc(Plus->uplines,
00053                              Plus->alloc_uplines * sizeof(int));
00054     }
00055 
00056     Plus->uplines[Plus->n_uplines] = line;
00057     Plus->n_uplines++;
00058 }
00059 
00065 void dig_node_reset_updated(struct Plus_head *Plus)
00066 {
00067     Plus->n_upnodes = 0;
00068 }
00069 
00076 void dig_node_add_updated(struct Plus_head *Plus, int node)
00077 {
00078     int i;
00079 
00080     G_debug(3, "dig_node_add_updated(): node = %d", node);
00081 
00082     /* Check if already in list */
00083     for (i = 0; i < Plus->n_upnodes; i++)
00084         if (Plus->upnodes[i] == node)
00085             return;
00086 
00087     /* Alloc space if needed */
00088     if (Plus->n_upnodes == Plus->alloc_upnodes) {
00089         Plus->alloc_upnodes += 1000;
00090         Plus->upnodes =
00091             (int *)G_realloc(Plus->upnodes,
00092                              Plus->alloc_upnodes * sizeof(int));
00093     }
00094 
00095     Plus->upnodes[Plus->n_upnodes] = node;
00096     Plus->n_upnodes++;
00097 }
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