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* util.h (digitp, hexdigitp): New ctype like macros.

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(atoi_1,atoi_2,atoi_4,xtoi_1,xtoi_2): New.
This commit is contained in:
Werner Koch 2001-12-14 13:37:08 +00:00
parent b020999687
commit 317bccd134
2 changed files with 32 additions and 0 deletions
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15
common/util.h
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@ -55,6 +55,21 @@ int map_kbx_err (int err);
int map_assuan_err (int err);
/* some macros to replace ctype ones and avoid locale problems */
#define digitp(p) (*(p) >= '0' && *(p) <= '9')
#define hexdigitp(a) (digitp (a) \
|| ((a) >= 'A' && (a) <= 'F') \
|| ((a) >= 'a' && (a) <= 'f'))
/* the atoi macros assume that the buffer has only valid digits */
#define atoi_1(p) (*(p) - '0' )
#define atoi_2(p) ((atoi_1(p) * 10) + atoi_1((p)+1))
#define atoi_4(p) ((atoi_2(p) * 100) + atoi_2((p)+2))
#define xtoi_1(p) (*(p) <= '9'? (*(p)- '0'): \
*(p) <= 'F'? (*(p)-'A'+10):(*(p)-'a'+10))
#define xtoi_2(p) ((xtoi_1(p) * 16) + xtoi_1((p)+1))
#endif /*GNUPG_COMMON_UTIL_H*/