C库函数手册.txt

c ,ctype.h int isalpha(int ch) ch(a-z,a-z)0,0 int isalnum(int ch) ch(a-z,a-z)(0-9) 0,0 int isascii(int ch) ch(ascii0-127)0,0 int iscntrl(int ch) ch(0x7f)(0x00-0x1f) 0,0 int isdigit(int ch) ch(0-9)0,0 int isgraph(int ch) ch()(0x21-0x7e)0,0 int islower(int ch) ch(a-z)0,0 int isprint(int ch) ch()(0x20-0x7e)0,0 int ispunct(int ch) ch(0x00-0x1f)0,0 int isspace(int ch) ch( ),(t),(r), (f),(v),(n) 0,0 int isupper(int ch) ch(a-z)0,0 int isxdigit(int ch) ch16(0-9,a-f,a-f)0, 0 int tolower(int ch) ch(a-z)(a-z) int toupper(int ch) ch(a-z)(a-z) ,math.hstdlib.hstring.hfloat.h int abs(int i) i double cabs(struct complex znum) znum double fabs(double x) x long labs(long n) n double exp(double x) ex double frexp(double value,int *eptr) value=x*2nx,neptr double ldexp(double value,int exp); value*2exp double log(double x) logex double log10(double x) log10x double pow(double x,double y) xy double pow10(int p) 10p double sqrt(double x) +x double acos(double x) xcos-1(x),x double asin(double x) xsin-1(x),x double atan(double x) xtan-1(x),x double atan2(double y,double x) y/xtan-1(x),yx double cos(double x) xcos(x),x double sin(double x) xsin(x),x double tan(double x) xtan(x),x double cosh(double x) double sinh(double x) xsinh(x),x double tanh(double x) xtanh(x),x double hypot(double x,double y) (z), xy,z2=x2+y2 double ceil(double x) x double floor(double x) x void srand(unsigned seed) int rand() 2005-9-12 21:46 61.55.212.* 2 double poly(double x,int n,double c) double modf(double value,double *iptr)value double fmod(double x,double y) x/y double frexp(double value,int *eptr) value double atof(char *nptr) nptr double atoi(char *nptr) nptr double atol(char *nptr) nptr char *ecvt(double value,int ndigit,int *decpt,int *sign) value char *fcvt(double value,int ndigit,int *decpt,int *sign) value char *gcvt(double value,int ndigit,char *buf) valuebuf,buf char *ultoa(unsigned long value,char *string,int radix) value,radix char *ltoa(long value,char *string,int radix) value,radix char *itoa(int value,char *string,int radix) valuestring,radix double atof(char *nptr) nptr,0 int atoi(char *nptr) nptr, ,0 long atol(char *nptr) nptr,0 double strtod(char *str,char *endptr)str, long strtol(char *str,char *endptr,int base)str, , int matherr(struct exception *e) () double _matherr(_mexcep why,char *fun,double *arg1p, double *arg2p,double retval) () unsigned int _clear87() void _fpreset() unsigned int _status87() ,dir.hdos.h int chdir(char *path) path:“c:wps“, 0 int findfirst(char *pathname,struct ffblk *ffblk,int attrib), 0 pathname,“c:wpstxt“ ffblk,: struct ffblk char ff_reserved21; /*dos*/ char ff_attrib; /*/ int ff_ftime; /*/ int ff_fdate; /*/ long ff_fsize; /*/ char ff_name13; /*/ attrib, fa_rdonly fa_label fa_hidden fa_direc 2005-9-12 21:46 61.55.212.* 3 fa_system fa_arch : struct ffblk ff; findfirst(“*.wps“, int findnext(struct ffblk *ffblk) finddirst,0 void fumerge(char *path,char *drive,char *dir,char *name,char *ext) drive(c:a:),dir(tcbclib), name(tcwps),ext(.exe.com) path. int fnsplit(char *path,char *drive,char *dir,char *name,char *ext) pathdrive(c:a:),dir(tcbclib), name(tcwps),ext(.exe.com),. int getcurdir(int drive,char *direc) drive (0=,1=a,2=b,3=c) direc 0 char *getcwd(char *buf,iint n) buf,n .null int getdisk() ,(0=a,1=b,2=c) int setdisk(int drive) drive(0=a,1=b,2=c), int mkdir(char *pathname) pathname,0 int rmdir(char *pathname) char *mktemp(char *template) template char *searchpath(char *pathname) msdosfilename, ,dospath,null ,stdlib.hprocess.h void abort() 3_exitstderr int exec int execl( char *pathname,char *arg0,char *arg1,char *argn,null) int execle( char *pathname,char *arg0,char *arg1, char *argn,null,char *envp) int execlp( char *pathname,char *arg0,char *arg1,null) int execlpe(char *pathname,char *arg0,char *arg1,null,char *envp) int execv( char *pathname,char *argv) int execve( char *pathname,char *argv,char *envp) int execvp( char *pathname,char *argv) int execvpe(char *pathname,char *argv,char *envp) execpathname arg0(arg1,arg2,argv,envp),-1 exec,lvpeexec pdospath l v eenvp e void _exit(int status), void exit(int status) ,(), “, int spawn int spawnl( int mode,char *pathname,char *arg0,char *arg1, char *argn,null) int spawnle( int mode,char *pathname,char *arg0,char *arg1, char *argn,null,char *envp) 2005-9-12 21:46 61.55.212.* 4 int spawnlp( int mode,char *pathname,char *arg0,char *arg1, char *argn,null) int spawnlpe(int mode,char *pathname,char *arg0,char *arg1, char *argn,null,char *envp) int spawnv( int mode,char *pathname,char *argv) int spawnve( int mode,char *pathname,char *argv,char *envp) int spawnvp( int mode,char *pathname,char *argv) int spawnvpe(int mode,char *pathname,char *argv,char *envp) spawnmodepathname, arg0(arg1,arg2,argv,envp).-1 mode mode p_wait p_nowait p_overlay spawn,lvpespawn p, dospath l, . v, . e, envp,. e,. int system(char *command) msdoscommanddos ,math.hstdlib.hctype.hfloat.h char *ecvt(double value,int ndigit,int *decpt,int *sign) value char *fcvt(double value,int ndigit,int *decpt,int *sign) value char *gcvt(double value,int ndigit,char *buf) valuebuf,buf char *ultoa(unsigned long value,char *string,int radix) value,radix char *ltoa(long value,char *string,int radix) value,radix char *itoa(int value,char *string,int radix) valuestring,radix double atof(char *nptr) nptr,0 int atoi(char *nptr) nptr, ,0 long atol(char *nptr) nptr,0 double strtod(char *str,char *endptr)str, long strtol(char *str,char *endptr,int base)str, , int toascii(int c) cascii int tolower(int ch) ch(a-z)(a-z) int _tolower(int ch) ch(a-z) int toupper(int ch) ch(a-z)(a-z) int _toupper(int ch) ch(a-z) ,assert.hmath.h void assert(int test) iftest , void perror(char *string) string: char *strerror(char *str) ,: str: int matherr(struct exception *e) 2005-9-1261.55.212.* 5 () double _matherr(_mexcep why,char *fun,double *arg1p, double *arg2p,double retval) () ,io.hconio.hstat.hdos.hstdio.hsignal.h int kbhit() İ int fgetchar() () int getch() () int putch() () int getchar() () int putchar() () int getche() () int ungetch(int c) c() char *cgets(char *string) ()string int scanf(char *format,argument), ,bios int vscanf(char *format,valist param), ,bios,valist param int cscanf(char *format,argument), , int sscanf(char *string,char *format,argument,)string, int vsscanf(char *string,char *format,vlist param)string, ,vlist param int puts(char *string) string(), bios void cputs(char *string) string(), , int printf(char *format,argument,) () bios int vprintf(char *format,valist param) () bios,valist param int cprintf(char *format,argument,) (), , int vcprintf(char *format,valist param)(), , valist param int sprintf(char *string,char *format,argument,) string int vsprintf(char *string,char *format,valist param) stringint rename(char *oldname,char *newname)oldnamenewname int ioctl(int handle,int cmd,int *argdx,int argcx) /豸 cmd 0 豸 1 豸 2 argcxargdx 3 argdxargcx 2005-9-12 21:46 61.55.212.* 6 4 handle豸(0=,1=a,),cmd=2 5 handle豸(0=,1=a,),cmd=3 6 7 8 ;dos 3.x 11 ;dos 3.x int (*ssignal(int sig,int(*action)()()() int gsignal(int sig) () int _open(char *pathname,int access), access,access access o_rdonly o_wronly o_rdwr o_noinherit , o_denyall o_denywrite o_denyread o_denynone int access,access access o_rdonly o_wronly o_rdwr o_ndelay;unix o_append, o_creat ,;, o_trunc ,0, o_excl ;unix o_binary o_text permiss,: s_iwrite s_iread s_iread|s_iwrite int creat(char *filename,int permiss) filename趨 permiss s_iwrite s_iread s_iread|s_iwrite int _creat(char *filename,int attrib) filename趨 attrib fa_rdonly fa_hidden fa_system 2005-9-12 21:46 61.55.212.* 7 int creatnew(char *filenamt,int attrib) filename趨 attrib fa_rdonly fa_hidden fa_system int creattemp(char *filenamt,int attrib) filename趨 attrib fa_rdonly fa_hidden fa_system int read(int handle,void *buf,int nbyte)handlenbyte buf int _read(int handle,void *buf,int nbyte)handlenbyte buf,msdos. int write(int handle,void *buf,int nbyte)bufnbyte handle int _write(int handle,void *buf,int nbyte)bufnbyte handle int dup(int handle) handle, int dup2(int handle,int newhandle) int eof(int *handle),1,0 long filelength(int handle) handle int setmode(int handle,unsigned mode)趨handle int getftime(int handle,struct ftime *ftime) handle ftime0,ftime struct ftime unsigned ft_tsec:5; /*/ unsigned ft_min:6; /*/ unsigned ft_hour:5; /*/ unsigned ft_day:5; /*/ unsigned ft_month:4;/*/ unsigned ft_year:1; /*-1980*/ int setftime(int handle,struct ftime *ftime) handle, ftime.0.ftime: struct ftime unsigned ft_tsec:5; /*/ unsigned ft_min:6; /*/ unsigned ft_hour:5; /*/ unsigned ft_day:5; /*/ unsigned ft_month:4;/*/ unsigned ft_year:1; /*-1980*/ long lseek(int handle,long offset,int fromwhere) handle fromwhereoffset. seek_set seek_cur seek_end long tell(int handle) handle, int isatty(int handle)豸handle int lock(int handle,long offset,long length) int unlock(int handle,long offset,long length) int close(int handle) handle,handle_creatcreat creatnewcreattempdupdup2_openopen 2005-9-12 21:46 61.55.212.* 8 0-1,unix int _close(int handle) handle,handle_creatcreat creatnewcreattempdupdup2_openopen 0-1,msdos file *fopen(char *filename,char *type) filename, type type /2/ r w a r+ / w+ / a+ / tbbt : #include main() file *fp; fp=fopen(“c:wpswps.exe“,“r+b“); file *fdopen(int ahndle,char *type) file *freopen(char *filename,char *type,file *stream) int getc(file *stream) stream int p