kyle/ke
1
0
Fork 0
Code Issues Pull Requests Actions 8 Packages Projects Releases Wiki Activity

abufs should have a capacity

Browse Source
This commit is contained in:
Kyle Isom
2020-02-18 22:31:23 +00:00
parent 80bde5cd40
commit e5081f9640
3 changed files with 23 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
main.c
View File

@@ -51,8 +51,9 @@
struct abuf {
char *b;
int len;
int cap;
};
#define ABUF_INIT {NULL, 0}
#define ABUF_INIT {NULL, 0, 0}
void ab_append(struct abuf *buf, const char *s, int len);
void ab_free(struct abuf *buf);
@@ -157,10 +158,19 @@ struct editor_t {
void
ab_append(struct abuf *buf, const char *s, int len)
{
char *nc = realloc(buf->b, buf->len + len);
char *nc = buf->b;
int sz = buf->len + len;
if (nc == NULL) {
abort();
if (sz >= buf->cap) {
while (sz > buf->cap) {
if (buf->cap == 0) {
buf->cap = 1;
} else {
buf->cap *= 2;
}
}
nc = realloc(nc, buf->cap);
assert(nc != NULL);
}
memcpy(&nc[buf->len], s, len);
@@ -174,6 +184,8 @@ ab_free(struct abuf *buf)
{
free(buf->b);
buf->b = NULL;
buf->len = 0;
buf->cap = 0;
}
char