diff options
Diffstat (limited to 'stdlib/stdlib.h')
| -rw-r--r-- | stdlib/stdlib.h | 127 |
1 files changed, 82 insertions, 45 deletions
diff --git a/stdlib/stdlib.h b/stdlib/stdlib.h index b43c170951..8f94f3b168 100644 --- a/stdlib/stdlib.h +++ b/stdlib/stdlib.h @@ -188,7 +188,7 @@ extern __inline long int atol (__const char *__nptr) #endif /* Optimizing GCC >=2. */ -#ifdef __USE_SVID +#if defined(__USE_SVID) || defined(__USE_XOPEN_EXTENDED) /* Convert N to base 64 using the digits "./0-9A-Za-z", least-significant digit first. Returns a pointer to static storage overwritten by the next call. */ @@ -196,15 +196,7 @@ extern char *l64a __P ((long int __n)); /* Read a number from a string S in base 64 as above. */ extern long int a64l __P ((__const char *__s)); -#endif - - -/* Return a random integer between 0 and RAND_MAX inclusive. */ -extern int rand __P ((void)); -/* Seed the random number generator with the given number. */ -extern void srand __P ((unsigned int __seed)); -#ifdef __USE_BSD #include <sys/types.h> /* we need int32_t... */ @@ -262,13 +254,36 @@ extern int srandom_r __P ((unsigned int __seed, struct random_data *__buf)); extern int initstate_r __P ((unsigned int __seed, __ptr_t __statebuf, size_t __statelen, struct random_data *__buf)); extern int setstate_r __P ((__ptr_t __statebuf, struct random_data *__buf)); -#endif /* __USE_REENTRANT. */ +#endif /* Use reentrant. */ #endif /* Use BSD. */ -#ifdef __USE_SVID +/* Return a random integer between 0 and RAND_MAX inclusive. */ +extern int rand __P ((void)); +/* Seed the random number generator with the given number. */ +extern void srand __P ((unsigned int __seed)); + + +#if defined(__USE_SVID) || defined(__USE_XOPEN) /* System V style 48-bit random number generator functions. */ +/* Return non-negative, double-precision floating-point value in [0.0,1.0). */ +extern double drand48 __P ((void)); +extern double erand48 __P ((unsigned short int __xsubi[3])); + +/* Return non-negative, long integer in [0,2^31). */ +extern long lrand48 __P ((void)); +extern long nrand48 __P ((unsigned short int __xsubi[3])); + +/* Return signed, long integers in [-2^31,2^31). */ +extern long mrand48 __P ((void)); +extern long jrand48 __P ((unsigned short int __xsubi[3])); + +/* Seed random number generator. */ +extern void srand48 __P ((long __seedval)); +extern unsigned short int *seed48 __P ((unsigned short int __seed16v[3])); +extern void lcong48 __P ((unsigned short int __param[7])); + /* Data structure for communication with thread safe versions. */ struct drand48_data { @@ -279,38 +294,34 @@ struct drand48_data int init; /* Flag for initializing. */ }; +#ifdef __USE_REENTRANT /* Return non-negative, double-precision floating-point value in [0.0,1.0). */ -extern double drand48 __P ((void)); extern int drand48_r __P ((struct drand48_data *__buffer, double *__result)); -extern double erand48 __P ((unsigned short int __xsubi[3])); extern int erand48_r __P ((unsigned short int __xsubi[3], struct drand48_data *__buffer, double *__result)); + /* Return non-negative, long integer in [0,2^31). */ -extern long lrand48 __P ((void)); extern int lrand48_r __P ((struct drand48_data *__buffer, long *__result)); -extern long nrand48 __P ((unsigned short int __xsubi[3])); extern int nrand48_r __P ((unsigned short int __xsubi[3], struct drand48_data *__buffer, long *__result)); + /* Return signed, long integers in [-2^31,2^31). */ -extern long mrand48 __P ((void)); extern int mrand48_r __P ((struct drand48_data *__buffer, long *__result)); -extern long jrand48 __P ((unsigned short int __xsubi[3])); extern int jrand48_r __P ((unsigned short int __xsubi[3], struct drand48_data *__buffer, long *__result)); + /* Seed random number generator. */ -extern void srand48 __P ((long __seedval)); extern int srand48_r __P ((long __seedval, struct drand48_data *__buffer)); -extern unsigned short int *seed48 __P ((unsigned short int __seed16v[3])); extern int seed48_r __P ((unsigned short int __seed16v[3], struct drand48_data *__buffer)); -extern void lcong48 __P ((unsigned short int __param[7])); extern int lcong48_r __P ((unsigned short int __param[7], struct drand48_data *__buffer)); +#endif /* Use reentrant. */ /* Internal function to compute next state of the generator. */ extern int __drand48_iterate __P ((unsigned short int __xsubi[3], struct drand48_data *__buffer)); -#endif /* __USE_SVID. */ +#endif /* Use SVID or X/Open. */ /* Allocate SIZE bytes of memory. */ @@ -332,7 +343,7 @@ extern void cfree __P ((__ptr_t __ptr)); #include <alloca.h> #endif /* Use GNU, BSD, or misc. */ -#ifdef __USE_BSD +#if defined(__USE_BSD) || defined(__USE_XOPEN_EXTENDED) /* Allocate SIZE bytes on a page boundary. The storage cannot be freed. */ extern __ptr_t valloc __P ((size_t __size)); #endif @@ -365,7 +376,7 @@ extern char *getenv __P ((__const char *__name)); programs is running with SUID or SGID enabled. */ extern char *__secure_getenv __P ((__const char *__name)); -#ifdef __USE_SVID +#if defined(__USE_SVID) || defined(__USE_XOPEN) /* The SVID says this is in <stdio.h>, but this seems a better place. */ /* Put STRING, which is of the form "NAME=VALUE", in the environment. If there is no `=', remove NAME from the environment. */ @@ -389,6 +400,23 @@ extern void unsetenv __P ((__const char *__name)); extern int clearenv __P ((void)); #endif + +#if defined(__USE_MISC) || defined(__USE_XOPEN_EXTENDED) +/* Generate a unique temporary file name from TEMPLATE. + The last six characters of TEMPLATE must be "XXXXXX"; + they are replaced with a string that makes the file name unique. + Returns TEMPLATE, or a null pointer if it cannot get a unique file name. */ +extern char *mktemp __P ((char *__template)); + +/* Generate a unique temporary file name from TEMPLATE. + The last six characters of TEMPLATE must be "XXXXXX"; + they are replaced with a string that makes the filename unique. + Returns a file descriptor open on the file for reading and writing, + or -1 if it cannot create a uniquely-named file. */ +extern int mkstemp __P ((char *__template)); +#endif + + /* Execute the given line as a shell command. */ extern int system __P ((__const char *__command)); @@ -400,7 +428,7 @@ extern int system __P ((__const char *__command)); extern char *canonicalize_file_name __P ((__const char *__name)); #endif -#ifdef __USE_BSD +#if defined(__USE_BSD) || defined(__USE_XOPEN_EXTENDED) /* Return the canonical absolute name of file NAME. The last file name component need not exist, and may be a symlink to a nonexistent file. If RESOLVED is null, the result is malloc'd; otherwise, if the canonical @@ -451,47 +479,49 @@ extern lldiv_t lldiv __P ((long long int __numer, long long int __denom)) __attr #endif -#ifdef __USE_SVID +#if defined(__USE_SVID) || defined(__USE_XOPEN_EXTENDED) /* Convert floating point numbers to strings. The returned values are valid only until another call to the same function. */ /* Convert VALUE to a string with NDIGIT digits and return a pointer to this. Set *DECPT with the position of the decimal character and *SIGN with the sign of the number. */ -char *ecvt __P ((double __value, int __ndigit, int *__decpt, int *__sign)); +extern char *ecvt __P ((double __value, int __ndigit, int *__decpt, + int *__sign)); /* Convert VALUE to a string rounded to NDIGIT decimal digits. Set *DECPT with the position of the decimal character and *SIGN with the sign of the number. */ -char *fcvt __P ((double __value, int __ndigit, int *__decpt, int *__sign)); +extern char *fcvt __P ((double __value, int __ndigit, int *__decpt, + int *__sign)); /* If possible convert VALUE to a string with NDIGIT significant digits. Otherwise use exponential representation. The resulting string will be written to BUF. */ -char *gcvt __P ((double __value, int __ndigit, char *__buf)); +extern char *gcvt __P ((double __value, int __ndigit, char *__buf)); /* Long double versions of above functions. */ -char *qecvt __P ((__long_double_t __value, int __ndigit, int *__decpt, - int *__sign)); -char *qfcvt __P ((__long_double_t __value, int __ndigit, int *__decpt, - int *__sign)); -char *qgcvt __P ((__long_double_t __value, int __ndigit, char *__buf)); +extern char *qecvt __P ((__long_double_t __value, int __ndigit, int *__decpt, + int *__sign)); +extern char *qfcvt __P ((__long_double_t __value, int __ndigit, int *__decpt, + int *__sign)); +extern char *qgcvt __P ((__long_double_t __value, int __ndigit, char *__buf)); #ifdef __USE_REENTRANT /* Reentrant version of the functions above which provide their own buffers. */ -int ecvt_r __P ((double __value, int __ndigit, int *__decpt, int *__sign, - char *__buf, size_t __len)); -int fcvt_r __P ((double __value, int __ndigit, int *__decpt, int *__sign, - char *__buf, size_t __len)); - -int qecvt_r __P ((__long_double_t __value, int __ndigit, int *__decpt, - int *__sign, char *__buf, size_t __len)); -int qfcvt_r __P ((__long_double_t __value, int __ndigit, int *__decpt, - int *__sign, char *__buf, size_t __len)); -#endif -#endif +extern int ecvt_r __P ((double __value, int __ndigit, int *__decpt, + int *__sign, char *__buf, size_t __len)); +extern int fcvt_r __P ((double __value, int __ndigit, int *__decpt, + int *__sign, char *__buf, size_t __len)); + +extern int qecvt_r __P ((__long_double_t __value, int __ndigit, int *__decpt, + int *__sign, char *__buf, size_t __len)); +extern int qfcvt_r __P ((__long_double_t __value, int __ndigit, int *__decpt, + int *__sign, char *__buf, size_t __len)); +#endif /* reentrant */ +#endif /* use MISC || use X/Open Unix */ /* Return the length of the multibyte character @@ -525,7 +555,7 @@ extern int rpmatch __P ((__const char *__response)); #endif -#ifdef __USE_MISC +#ifdef __USE_XOPEN_EXTENDED /* Parse comma separated suboption from *OPTIONP and match against strings in TOKENS. If found return index and set *VALUEP to optional value introduced by an equal sign. If the suboption is @@ -537,6 +567,13 @@ extern int getsubopt __P ((char **__optionp, __const char *__const *__tokens, #endif +#ifdef __USE_XOPEN + +/* Setup DES tables according KEY. */ +extern void setkey __P ((__const char *__key)); +#endif + + __END_DECLS #endif /* stdlib.h */ |