/usr/lib/R/site-library/Rsamtools/include/samtools/kstring.h is in r-bioc-rsamtools 1.30.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (c) by Attractive Chaos <attractor@live.co.uk>
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#ifndef KSTRING_H
#define KSTRING_H
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#ifndef kroundup32
#define kroundup32(x) (--(x), (x)|=(x)>>1, (x)|=(x)>>2, (x)|=(x)>>4, (x)|=(x)>>8, (x)|=(x)>>16, ++(x))
#endif
#ifndef KSTRING_T
#define KSTRING_T kstring_t
typedef struct __kstring_t {
size_t l, m;
char *s;
} kstring_t;
#endif
typedef struct {
uint64_t tab[4];
int sep, finished;
const char *p; // end of the current token
} ks_tokaux_t;
#ifdef __cplusplus
extern "C" {
#endif
int ksprintf(kstring_t *s, const char *fmt, ...);
int ksplit_core(char *s, int delimiter, int *_max, int **_offsets);
char *kstrstr(const char *str, const char *pat, int **_prep);
char *kstrnstr(const char *str, const char *pat, int n, int **_prep);
void *kmemmem(const void *_str, int n, const void *_pat, int m, int **_prep);
/* kstrtok() is similar to strtok_r() except that str is not
* modified and both str and sep can be NULL. For efficiency, it is
* actually recommended to set both to NULL in the subsequent calls
* if sep is not changed. */
char *kstrtok(const char *str, const char *sep, ks_tokaux_t *aux);
#ifdef __cplusplus
}
#endif
static inline void ks_resize(kstring_t *s, size_t size)
{
if (s->m < size) {
s->m = size;
kroundup32(s->m);
s->s = (char*)realloc(s->s, s->m);
}
}
static inline int kputsn(const char *p, int l, kstring_t *s)
{
if (s->l + l + 1 >= s->m) {
s->m = s->l + l + 2;
kroundup32(s->m);
s->s = (char*)realloc(s->s, s->m);
}
memcpy(s->s + s->l, p, l);
s->l += l;
s->s[s->l] = 0;
return l;
}
static inline int kputs(const char *p, kstring_t *s)
{
return kputsn(p, strlen(p), s);
}
static inline int kputc(int c, kstring_t *s)
{
if (s->l + 1 >= s->m) {
s->m = s->l + 2;
kroundup32(s->m);
s->s = (char*)realloc(s->s, s->m);
}
s->s[s->l++] = c;
s->s[s->l] = 0;
return c;
}
static inline int kputw(int c, kstring_t *s)
{
char buf[16];
int l, x;
if (c == 0) return kputc('0', s);
if(c < 0) for (l = 0, x = c; x < 0; x /= 10) buf[l++] = '0' - (x%10);
else for (l = 0, x = c; x > 0; x /= 10) buf[l++] = x%10 + '0';
if (c < 0) buf[l++] = '-';
if (s->l + l + 1 >= s->m) {
s->m = s->l + l + 2;
kroundup32(s->m);
s->s = (char*)realloc(s->s, s->m);
}
for (x = l - 1; x >= 0; --x) s->s[s->l++] = buf[x];
s->s[s->l] = 0;
return 0;
}
static inline int kputuw(unsigned c, kstring_t *s)
{
char buf[16];
int l, i;
unsigned x;
if (c == 0) return kputc('0', s);
for (l = 0, x = c; x > 0; x /= 10) buf[l++] = x%10 + '0';
if (s->l + l + 1 >= s->m) {
s->m = s->l + l + 2;
kroundup32(s->m);
s->s = (char*)realloc(s->s, s->m);
}
for (i = l - 1; i >= 0; --i) s->s[s->l++] = buf[i];
s->s[s->l] = 0;
return 0;
}
static inline int kputl(long c, kstring_t *s)
{
char buf[32];
long l, x;
if (c == 0) return kputc('0', s);
for (l = 0, x = c < 0? -c : c; x > 0; x /= 10) buf[l++] = x%10 + '0';
if (c < 0) buf[l++] = '-';
if (s->l + l + 1 >= s->m) {
s->m = s->l + l + 2;
kroundup32(s->m);
s->s = (char*)realloc(s->s, s->m);
}
for (x = l - 1; x >= 0; --x) s->s[s->l++] = buf[x];
s->s[s->l] = 0;
return 0;
}
static inline int *ksplit(kstring_t *s, int delimiter, int *n)
{
int max = 0, *offsets = 0;
*n = ksplit_core(s->s, delimiter, &max, &offsets);
return offsets;
}
#endif
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