60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/* vim: set sw=8 ts=8 sts=8 noet: */
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/* str.h
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*
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* Copyright (C) 2013 James McKaskill
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*
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* This software may be modified and distributed under the terms
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* of the MIT license. See the LICENSE file for details.
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*/
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#include <capnp_c.h>
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#include <stdlib.h>
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struct str {
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char *str;
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int len, cap;
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};
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extern char str_static[];
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#define STR_INIT {str_static, 0, 0}
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void str_reserve(struct str *v, int sz);
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static inline void str_init(struct str *v, int sz) {
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v->str = str_static;
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v->len = v->cap = 0;
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if (sz)
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str_reserve(v, sz);
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}
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static inline void str_release(struct str *v) {
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if (v->cap) {
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free(v->str);
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}
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}
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static inline void str_reset(struct str *v) {
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if (v->len) {
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v->len = 0;
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v->str[0] = '\0';
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}
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}
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static inline void str_setlen(struct str *v, int sz) {
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str_reserve(v, sz);
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v->str[sz] = '\0';
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v->len = sz;
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}
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#ifdef __GNUC__
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#define ATTR(FMT, ARGS) __attribute__((format(printf,FMT,ARGS)))
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#else
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#define ATTR(FMT, ARGS)
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#endif
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void str_add(struct str *v, const char *str, int sz);
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int str_vaddf(struct str *v, const char *format, va_list ap) ATTR(2,0);
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int str_addf(struct str *v, const char *format, ...) ATTR(2,3);
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char *strf(struct str *v, const char *format, ...) ATTR(2,3);
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