29 lines
745 B
C
29 lines
745 B
C
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#include "buf.h"
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdio.h>
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void buf_init(Buf *b) {
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b->data = malloc(4096); b->len = 0; b->cap = 4096; b->data[0] = 0;
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}
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void buf_free(Buf *b) {
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free(b->data); b->data = NULL; b->len = 0; b->cap = 0;
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}
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void buf_append(Buf *b, const char *s, size_t n) {
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while (b->len + n + 1 > b->cap) { b->cap *= 2; b->data = realloc(b->data, b->cap); }
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memcpy(b->data + b->len, s, n);
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b->len += n;
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b->data[b->len] = 0;
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}
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void buf_str(Buf *b, const char *s) { buf_append(b, s, strlen(s)); }
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void buf_fmt(Buf *b, const char *fmt, ...) {
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char tmp[4096]; va_list ap; va_start(ap, fmt);
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vsnprintf(tmp, sizeof(tmp), fmt, ap); va_end(ap);
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buf_str(b, tmp);
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}
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