#endif
#define NOOP (void)0
-#ifdef HASATTRIBUTE
#define dNOOP extern int Perl___notused __attribute__ ((unused))
-#else
-#define dNOOP extern int Perl___notused
-#endif
#ifndef pTHX
# define pTHX void
# endif
#endif
-#if !defined(Perl_atof) && defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE)
-# if !defined(Perl_atof) && defined(HAS_STRTOLD)
-# define Perl_atof(s) (NV)strtold(s, (char**)NULL)
-# endif
-# if !defined(Perl_atof) && defined(HAS_ATOLF)
-# define Perl_atof (NV)atolf
-# endif
-# if !defined(Perl_atof) && defined(PERL_SCNfldbl)
-# define Perl_atof PERL_SCNfldbl
-# define Perl_atof2(s,f) sscanf((s), "%"PERL_SCNfldbl, &(f))
-# endif
-#endif
-#if !defined(Perl_atof)
-# define Perl_atof atof /* we assume atof being available anywhere */
-#endif
-#if !defined(Perl_atof2)
-# define Perl_atof2(s,f) ((f) = (NV)Perl_atof(s))
-#endif
+#define Perl_atof(s) Perl_my_atof(s)
+#define Perl_atof2(s, np) Perl_my_atof2(s, np)
/* Previously these definitions used hardcoded figures.
* It is hoped these formula are more portable, although
/* otherwise default to functions in util.c */
#endif
-#ifdef CASTNEGFLOAT
-#define U_S(what) ((U16)(what))
-#define U_I(what) ((unsigned int)(what))
-#define U_L(what) ((U32)(what))
-#else
-#define U_S(what) ((U16)cast_ulong((NV)(what)))
-#define U_I(what) ((unsigned int)cast_ulong((NV)(what)))
-#define U_L(what) (cast_ulong((NV)(what)))
-#endif
+/* *MAX Plus 1. A floating point value.
+ Hopefully expressed in a way that dodgy floating point can't mess up.
+ >> 2 rather than 1, so that value is safely less than I32_MAX after 1
+ is added to it
+ May find that some broken compiler will want the value cast to I32.
+ [after the shift, as signed >> may not be as secure as unsigned >>]
+*/
+#define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
+#define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
+/* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
+ 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
+ may be greater than sizeof(IV), so don't assume that half max UV is max IV.
+*/
+#define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
-#ifdef CASTI32
-#define I_32(what) ((I32)(what))
-#define I_V(what) ((IV)(what))
-#define U_V(what) ((UV)(what))
-#else
+#define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
+#define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
+#define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
+
+/* This may look like unnecessary jumping through hoops, but converting
+ out of range floating point values to integers *is* undefined behaviour,
+ and it is starting to bite.
+*/
+#ifndef CAST_INLINE
#define I_32(what) (cast_i32((NV)(what)))
+#define U_32(what) (cast_ulong((NV)(what)))
#define I_V(what) (cast_iv((NV)(what)))
#define U_V(what) (cast_uv((NV)(what)))
+#else
+#define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
+ : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
+ : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
+#define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
+ : ((n) < U32_MAX_P1 ? (U32) (n) \
+ : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
+#define I_V(n) ((n) < IV_MAX_P1 ? ((n) < IV_MIN ? IV_MIN : (IV) (n)) \
+ : ((n) < UV_MAX_P1 ? (IV)(UV) (n) \
+ : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
+#define U_V(n) ((n) < 0.0 ? ((n) < IV_MIN ? (UV) IV_MIN : (UV)(IV) (n)) \
+ : ((n) < UV_MAX_P1 ? (UV) (n) \
+ : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
#endif
+#define U_S(what) ((U16)U_32(what))
+#define U_I(what) ((unsigned int)U_32(what))
+#define U_L(what) U_32(what)
+
/* These do not care about the fractional part, only about the range. */
#define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
#define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
} STMT_END
# endif
-# define DEBUG_f(a) if (DEBUG_f_TEST) a
-# define DEBUG_r(a) if (DEBUG_r_TEST) a
-# define DEBUG_x(a) if (DEBUG_x_TEST) a
-# define DEBUG_u(a) if (DEBUG_u_TEST) a
-# define DEBUG_L(a) if (DEBUG_L_TEST) a
-# define DEBUG_H(a) if (DEBUG_H_TEST) a
-# define DEBUG_X(a) if (DEBUG_X_TEST) a
-# define DEBUG_D(a) if (DEBUG_D_TEST) a
+# define DEBUG__(t, a) \
+ STMT_START { \
+ if (t) STMT_START {a;} STMT_END; \
+ } STMT_END
+
+# define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
+# define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
+# define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
+# define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
+# define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
+# define DEBUG_H(a) DEBUG__(DEBUG_H_TEST, a)
+# define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
+# define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
# ifdef USE_THREADS
-# define DEBUG_S(a) if (DEBUG_S_TEST) a
+# define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
# else
# define DEBUG_S(a)
# endif
-# define DEBUG_T(a) if (DEBUG_T_TEST) a
-# define DEBUG_R(a) if (DEBUG_R_TEST) a
+# define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
+# define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
#else /* DEBUGGING */
#define UNLINK PerlLIO_unlink
#endif
+#ifndef HAS_SETRESUID_PROTO /* some versions of glibc */
+int setresuid(uid_t ruid, uid_t euid, uid_t suid);
+#endif
+#ifndef HAS_SETRESUID_PROTO /* some versions of glibc */
+int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
+#endif
+
#ifndef HAS_SETREUID
# ifdef HAS_SETRESUID
# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
#define HINT_INTEGER 0x00000001
#define HINT_STRICT_REFS 0x00000002
/* #define HINT_notused4 0x00000004 */
-#define HINT_BYTE 0x00000008
+#define HINT_BYTES 0x00000008
/* #define HINT_notused10 0x00000010 */
/* Note: 20,40,80 used for NATIVE_HINTS */
projects / p5sagit/p5-mst-13.2.git / blobdiff