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acc01e6436
This was from a different series, so I just cherry-picked it. It adds ccan/membuf as a depenency of ccan/rbuf, though we don't use it directly yet. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
52 lines
1.2 KiB
Plaintext
52 lines
1.2 KiB
Plaintext
#include "config.h"
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#include <stdio.h>
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#include <string.h>
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/**
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* membuf - simple linear memory buffer routines.
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*
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* It's common to want a linear memory buffer, where you can get memory on
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* the end, and consume memory from the start. The details of actually
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* when to enlarge or move the buffer are slightly nontrivial, so they're
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* encapsulated here.
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*
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* License: BSD-MIT
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* Author: Rusty Russell <rusty@rustcorp.com.au>
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*
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* Example:
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* #include <ccan/membuf/membuf.h>
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* #include <string.h>
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* #include <stdio.h>
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*
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* // Given "hello world" outputs helloworld
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* // Given "hello there world" outputs hellothereworld
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* int main(int argc, char *argv[])
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* {
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* MEMBUF(char) charbuf;
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*
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* membuf_init(&charbuf, malloc(10), 10, membuf_realloc);
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*
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* for (int i = 1; i < argc; i++)
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* strcpy(membuf_add(&charbuf, strlen(argv[i])), argv[i]);
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*
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* // This is dumb, we could do all at once, but shows technique.
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* while (membuf_num_elems(&charbuf) > 0)
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* printf("%c", *(char *)membuf_consume(&charbuf, 1));
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* printf("\n");
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* return 0;
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* }
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*/
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int main(int argc, char *argv[])
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{
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/* Expect exactly one argument */
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if (argc != 2)
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return 1;
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if (strcmp(argv[1], "depends") == 0) {
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printf("ccan/tcon\n");
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return 0;
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}
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return 1;
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}
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