mirror of
https://github.com/subsurface/subsurface.git
synced 2024-11-28 13:10:19 +00:00
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#ifndef SUBSURFACE_STRING_H
|
|
#define SUBSURFACE_STRING_H
|
|
|
|
#include <stdbool.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
|
|
// shared generic definitions and macros
|
|
// mostly about strings, but a couple of math macros are here as well
|
|
|
|
/* Windows has no MIN/MAX macros - so let's just roll our own */
|
|
#define MIN(x, y) ({ \
|
|
__typeof__(x) _min1 = (x); \
|
|
__typeof__(y) _min2 = (y); \
|
|
(void) (&_min1 == &_min2); \
|
|
_min1 < _min2 ? _min1 : _min2; })
|
|
|
|
#define MAX(x, y) ({ \
|
|
__typeof__(x) _max1 = (x); \
|
|
__typeof__(y) _max2 = (y); \
|
|
(void) (&_max1 == &_max2); \
|
|
_max1 > _max2 ? _max1 : _max2; })
|
|
|
|
#define IS_FP_SAME(_a, _b) (fabs((_a) - (_b)) <= 0.000001 * MAX(fabs(_a), fabs(_b)))
|
|
|
|
// string handling
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
static inline bool same_string(const char *a, const char *b)
|
|
{
|
|
return !strcmp(a ?: "", b ?: "");
|
|
}
|
|
|
|
static inline bool same_string_caseinsensitive(const char *a, const char *b)
|
|
{
|
|
return !strcasecmp(a ?: "", b ?: "");
|
|
}
|
|
|
|
static inline bool empty_string(const char *s)
|
|
{
|
|
return !s || !*s;
|
|
}
|
|
|
|
static inline bool includes_string_caseinsensitive(const char *haystack, const char *needle)
|
|
{
|
|
if (!needle)
|
|
return 1; /* every string includes the NULL string */
|
|
if (!haystack)
|
|
return 0; /* nothing is included in the NULL string */
|
|
int len = strlen(needle);
|
|
while (*haystack) {
|
|
if (strncasecmp(haystack, needle, len))
|
|
return 1;
|
|
haystack++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline char *copy_string(const char *s)
|
|
{
|
|
return (s && *s) ? strdup(s) : NULL;
|
|
}
|
|
|
|
#define STRTOD_NO_SIGN 0x01
|
|
#define STRTOD_NO_DOT 0x02
|
|
#define STRTOD_NO_COMMA 0x04
|
|
#define STRTOD_NO_EXPONENT 0x08
|
|
extern double strtod_flags(const char *str, const char **ptr, unsigned int flags);
|
|
|
|
#define STRTOD_ASCII (STRTOD_NO_COMMA)
|
|
|
|
#define ascii_strtod(str, ptr) strtod_flags(str, ptr, STRTOD_ASCII)
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif // SUBSURFACE_STRING_H
|