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→STRING HANDLING
== Functions STANDARD I/O == ;[[Functions_HI-TECH_C_FOPEN|fopen(name, mode)]] :Open file for I/O;[[Functions_HI-TECH_C_FREOPEN|freopen(name, mode, stream)]] :Re-open existing stream;[[Functions_HI-TECH_C_FDOPEN|fdopen(fd, mode)]] :Associate a stream with a file descriptor[WikiEditor:This item is not described on original document] ;[[Functions_HI-TECH_C_FCLOSE|fclose(stream)]] :Close open file;[[Functions_HI-TECH_C_FFLUSH|fflush(stream)]] :Flush buffered data;[[Functions_HI-TECH_C_GETC|getc(stream)]] :Read byte from stream;[[Functions_HI-TECH_C_FGETC|fgetc(stream)]] :Same as getc;[[Functions_HI-TECH_C_UNGETC|ungetc(c, stream)]] :Push char back onto stream;[[Functions_HI-TECH_C_PUTC|putc(c, stream)]] :Write byte to stream;[[Functions_HI-TECH_C_FPUTC|fputc(c, stream)]] :Same as putc();[[Functions_HI-TECH_C_GETCHAR|getchar()]] :Read byte from standard input;[[Functions_HI-TECH_C_PUTCHAR|putchar(c)]] :Write byte to standard output;[[Functions_HI-TECH_C_GETW|getw(stream)]] :Read word from stream;[[Functions_HI-TECH_C_PUTW|putw(w, stream)]] :Write word to stream;[[Functions_HI-TECH_C_GETS|gets(s)]] :Read line from standard input;[[Functions_HI-TECH_C_FGETS|fgets(s, n, stream)]] :Read string from stream;[[Functions_HI-TECH_C_PUTS|puts(s)]] :Write string to standard output;[[Functions_HI-TECH_C_FPUTS|fputs(s, stream)]] :Write string to stream;[[Functions_HI-TECH_C_FREAD|fread(buf, size, cnt, stream)]] :Binary read from stream;[[Functions_HI-TECH_C_FWRITE|fwrite(buf, size, cnt, stream)]] :Binary write to stream;[[Functions_HI-TECH_C_FSEEK|fseek(stream, offs, wh)]] :Random access positioning;[[Functions_HI-TECH_C_FTELL|ftell(stream)]] :Current file read/write position;[[Functions_HI-TECH_C_REWIND|rewind(stream)]] :Reposition file pointer to start;[[Functions_HI-TECH_C_SETVBUF|setvbuf(stream, buf, mode, size)]] :Enable/disable buffering of stream;[[Functions_HI-TECH_C_FPRINTF|fprintf(stream, fmt, args)]] :Formatted output on stream;[[Functions_HI-TECH_C_PRINTF|printf(fmt, args)]] :Formatted standard output;[[Functions_HI-TECH_C_SPRINTF|sprintf(buf, fmt, args)]] :Formatted output to a string;[[Functions_HI-TECH_C_VFPRINTF|vfprintf(stream, fmt, va_ptr)]] :Formatted output on stream;[[Functions_HI-TECH_C_VPRINTF|vprintf(fmt, va_ptr)]] :Formatted standard output;[[Functions_HI-TECH_C_VSPRINTF|vsprintf(buf, fmt, va_ptr)]] :Formatted output to a string;[[Functions_HI-TECH_C_FSCANF|fscanf(stream, fmt, args)]] :Formatted input from stream;[[Functions_HI-TECH_C_SCANF|scanf(fmt, args)]] :Formatted standard input;[[Functions_HI-TECH_C_SSCANF|sscanf(buf, fmt, va_ptr)]] :Formatted input from a string;[[Functions_HI-TECH_C_VFSCANF|vfscanf(stream, fmt, va_ptr)]] :Formatted input from stream;[[Functions_HI-TECH_C_VSCANF|vscanf(fmt, args)]] :Formatted standard input;[[Functions_HI-TECH_C_VSSCANF|vsscanf(buf, fmt, va_ptr)] :Formatted input from a string;[[Functions_HI-TECH_C_FEOF|feof(stream)]] :True if stream at EOF;[[Functions_HI-TECH_C_FERROR|ferror(stream)]] :True if error on stream;[[Functions_HI-TECH_C_CLRERR|clrerr(stream)]] :Reset error status on stream;[[Functions_HI-TECH_C_FILENO|fileno(stream)]] :Return fd from stream;[[Functions_HI-TECH_C_REMOVE|remove(name)]] :Remove (delete) file == STRING HANDLING == ;[[Functions_HI-TECH_C_ATOI|atoi(s)]] :Convert ASCII decimal to integer;[[Functions_HI-TECH_C_ATOL|atol(s)]] :Convert ASCII decimal to long integer;[[Functions_HI-TECH_C_ATOF|atof(s)]] :Convert ASCII decimal to float;[[Functions_HI-TECH_C_XTOI|xtoi(s)]] :Convert ASCII hexadecimal to integer[WikiEditor:This item is not described on original document] ;[[Functions_HI-TECH_C_MEMCHR|memchr(s, c, n)]] :Find char in memory block;[[Functions_HI-TECH_C_MEMCMP|memcmp(s1, s2, n)]] :Compare n bytes of memory;[[Functions_HI-TECH_C_MEMCPY|memcpy(s1, s2, n)]] :Copy n bytes from s2 to s1;[[Functions_HI-TECH_C_MEMMOVE|memmove(s1, s2, n)]] :Copy n bytes from s2 to s1;[[Functions_HI-TECH_C_MEMSET|memset(s, c, n)]] :Set n bytes at s to c;[[Functions_HI-TECH_C_STRCAT|strcat(s1, s2)]] :Append string 2 to string 1;[[Functions_HI-TECH_C_STRNCAT|strncat(s1, s2, n)]] :Append at most n chars to string 1;[[Functions_HI-TECH_C_STRCMP|strcmp(s1, s2)]] :Compare strings;[[Functions_HI-TECH_C_STRNCMP|strncmp(s1, s2, n)]] :Compare n bytes of strings;[[Functions_HI-TECH_C_STRCPY|strcpy(s1, s2)]] :Copy s2 to s1;[[Functions_HI-TECH_C_STRNCPY|strncpy(s1, s2, n)]] :Copy at most n bytes of s2;[[Functions_HI-TECH_C_STRERROR|strerror(errnum)]] :Map errnum to an error message string[WikiEditor:This item is not described on original document] ;[[Functions_HI-TECH_C_STRLEN|strlen(s)]] :Length of string;[[Functions_HI-TECH_C_STRCHR|strchr(s, c)]] :Find char in string;[[Functions_HI-TECH_C_STRRCHR|strrchr(s, c)]] :Find rightmost char in string;[[Functions_HI-TECH_C_STRSPN|strspn(s1, s2)]] :Length of s1 composed of chars from s2[WikiEditor:This item is not described on original document] ;[[Functions_HI-TECH_C_STRCSPN|strcspn(s1, s2)]] :Length of s2 composed of chars not from s2[WikiEditor:This item is not described on original document] ;[[Functions_HI-TECH_C_STRSTR|strstr(s1, s2)]] :Locate the first occurence of s2 in s1[WikiEditor:This item is not described on original document] == LOW LEVEL I/O == ;[[Functions_HI-TECH_C_OPEN|open(name, mode)]] :Open a file;[[Functions_HI-TECH_C_CLOSE|close(fd)]] :Close a file;[[Functions_HI-TECH_C_CREAT|creat(name)]] :Create a file;[[Functions_HI-TECH_C_DUP|dup(fd)]] :Duplicate file descriptor;[[Functions_HI-TECH_C_LSEEK|lseek(fd, offs, wh)]] :Random access positioning;[[Functions_HI-TECH_C_READ|read(fd, buf, cnt)]] :Read from file;[[Functions_HI-TECH_C_RENAME|rename(name1, name2)]] :Rename file;[[Functions_HI-TECH_C_UNLINK|unlink(name)]] :Remove file from directory;[[Functions_HI-TECH_C_WRITE|write(fd, buf, cnt)]] :Write to file;[[Functions_HI-TECH_C_ISATTY|isatty(fd)]] :True if fd refers to tty-like device;[[Functions_HI-TECH_C_STAT|stat(name, buf)]] :Get information about a file;[[Functions_HI-TECH_C_CHMOD|chmod(name, mode)]] :Set file attributes == CHARACTER TESTING == ;[[Functions_HI-TECH_C_ISALPHA|isalpha(c)]] :True if c is a letter;[[Functions_HI-TECH_C_ISUPPER|isupper(c)]] :Upper case letter;[[Functions_HI-TECH_C_ISLOWER|islower(c)]] :Lower case letter;[[Functions_HI-TECH_C_ISDIGIT|isdigit(c)]] :Digit;[[Functions_HI-TECH_C_ISALNUM|isalnum(c)]] :Alphnumeric character;[[Functions_HI-TECH_C_ISSPACE|isspace(c)]] :Space, tab, newline, return or formfeed;[[Functions_HI-TECH_C_ISPUNCT|ispunct(c)]] :Punctuation character;[[Functions_HI-TECH_C_ISPRINT|isprint(c)]] :Printable character;[[Functions_HI-TECH_C_ISGRAPH|isgraph(c)]] :Printable non-space character;[[Functions_HI-TECH_C_ISCNTRL|iscntrl(c)]] :Control character;[[Functions_HI-TECH_C_ISASCII|isascii(c)]] :Ascii character (0-127) == FLOATING POINT == ;[[Functions_HI-TECH_C_COS|cos(f)]] :Cosine function;[[Functions_HI-TECH_C_SIN|sin(f)]] :Sine function;[[Functions_HI-TECH_C_TAN|tan(f)]] :Tangent function;[[Functions_HI-TECH_C_ACOS|acos(f)]] :Arc cosine function;[[Functions_HI-TECH_C_ASIN|asin(f)]] :Arc sine function;[[Functions_HI-TECH_C_ATAN|atan(f)]] :Arc tangent function;[[Functions_HI-TECH_C_EXP|exp(f)]] :Exponential of f;[[Functions_HI-TECH_C_LOG|log(f)]] :Natural log of f;[[Functions_HI-TECH_C_LOG10|log10(f)]] :Base 10 log of f;[[Functions_HI-TECH_C_POW|pow(x,y)]] :X to the y'th power;[[Functions_HI-TECH_C_SQRT|sqrt(f)]] :Square root;[[Functions_HI-TECH_C_FABS|fabs(f)]] :Floating absolute value;[[Functions_HI-TECH_C_CEIL|ceil(f)]] :Smallest integral value >= f;[[Functions_HI-TECH_C_FLOOR|floor(f)]] :Largest integral value <= f;[[Functions_HI-TECH_C_SINH|sinh(f)]] :Hyperbolic sine;[[Functions_HI-TECH_C_COSH|cosh(f)]] :Hyperbolic cosine;[[Functions_HI-TECH_C_TANH|tanh(f)]] :Hyperbolic tangent;[[Functions_HI-TECH_C_FREXP|frexp(y, p)]] :Split into mantissa and exponent;[[Functions_HI-TECH_C_LDEXP|ldexp(y, i)]] :Load new exponent == CONSOLE I/O == ;[[Functions_HI-TECH_C_GETCH|getch()]] :Get single character;[[Functions_HI-TECH_C_GETCHE|getche()]] :Get single character with echo;[[Functions_HI-TECH_C_PUTCH|putch(c)]] :Put single character;[[Functions_HI-TECH_C_UNGETCH|ungetch(c)]] :Push character back;[[Functions_HI-TECH_C_KBHIT|kbhit()]] :Test for key pressed;[[Functions_HI-TECH_C_CGETS|cgets(s)]] :Get line from console;[[Functions_HI-TECH_C_CPUTS|cputs(s)]] :Put string to console == DATE AND TIME FUNCTIONS == ;[[Functions_HI-TECH_C_TIME|time(p)]] :Get current date/time;[[Functions_HI-TECH_C_GMTIME|gmtime(p)]] :Get broken down Universal time;[[Functions_HI-TECH_C_LOCALTIME|localtime(p)]] :Get broken down local time;[[Functions_HI-TECH_C_ASCTIME|asctime(t)]] :Convert broken down time to ascii;[[Functions_HI-TECH_C_CTIME|ctime(p)]] :Convert time to ascii == MISCELLANEOUS == ;[[Functions_HI-TECH_C_EXECL|execl(name, args)]] :Execute another program;[[Functions_HI-TECH_C_EXECV|execv(name, argp)]] :Execute another program;[[Functions_HI-TECH_C_SPAWNL|spawnl(name, arg, ...)]] :Execute a subprogram;[[Functions_HI-TECH_C_SPAWNV|spawnv(name, argp)]] :Execute a subprogram;[[Functions_HI-TECH_C_SYSTEM|system(s)]] :Execute system command;[[Functions_HI-TECH_C_ATEXIT|atexit(func)]] :Install func to be executed on termination;[[Functions_HI-TECH_C_EXIT|exit(status)]] :Terminate execution;<nowiki>[[Functions_HI-TECH_C__EXIT|_exit(status)]]</nowiki> :Terminate execution immediately;[[Functions_HI-TECH_C_GETUID|getuid()]] :Get user id (CP/M);[[Functions_HI-TECH_C_SETUID|setuid(uid)]] :Set user id (CP/M);[[Functions_HI-TECH_C_CHDIR|chdir(s)]] :Change directory (MS-DOS);[[Functions_HI-TECH_C_MKDIR|mkdir(s)]] :Create directory (MS-DOS);[[Functions_HI-TECH_C_RMDIR|rmdir(s)]] :Remove directory (MS-DOS);[[Functions_HI-TECH_C_GETCWD|getcwd(drive)]] :Get current working directory (MS-DOS);[[Functions_HI-TECH_C_SIGNAL|signal(sig, func)]] :Set trap for interrupt condition;[[Functions_HI-TECH_C_BRK|brk(addr)]] :Set memory allocation;[[Functions_HI-TECH_C_SBRK|sbrk(incr)]] :Adjust memory allocation;[[Functions_HI-TECH_C_MALLOC|malloc(cnt)]] :Dynamic memory allocation;[[Functions_HI-TECH_C_FREE|free(ptr)]] :Dynamic memory release;[[Functions_HI-TECH_C_REALLOC|realloc(ptr, cnt)]] :Dynamic memory reallocation;[[Functions_HI-TECH_C_CALLOC|calloc(cnt, size)]] :Dynamic memory allocation zeroed;[[Functions_HI-TECH_C_PERROR|perror(s)]] :Print error message;[[Functions_HI-TECH_C_QSORT|qsort(base, nel, width, func)]] :Quick sort;[[Functions_HI-TECH_C_SRAND|srand(seed)]] :Initialize random number generator;[[Functions_HI-TECH_C_RAND|rand()]] :Get next random number;[[Functions_HI-TECH_C_SETJMP|setjmp(buf)]] :Setup for non-local goto;[[Functions_HI-TECH_C_LONGJMP|longjmp(buf, val)]] :Non-local goto;<nowiki>[[Functions_HI-TECH_C__GETARGS|_getargs(buf, name)]]</nowiki> :Wild card expansion and i/o redirection;[[Functions_HI-TECH_C_INP|inp(port)]] :Read port;[[Functions_HI-TECH_C_OUTP|outp(port, data)]] :Write data to port;[[Functions_HI-TECH_C_BDOS|bdos(func, val)]] :Perform bdos call (CP/M);[[Functions_HI-TECH_C_MSDOS|msdos(func, val, val, ...)]] :Perform msdos call;[[Functions_HI-TECH_C_MSDOSCX|msdoscx(func, val, val, ...)]] :Alternate msdos call;[[Functions_HI-TECH_C_INTDOS|intdos(ip, op)]] :Execute DOS interrupt;[[Functions_HI-TECH_C_INTDOSX|intdosx(ip, op, sp)]] :Execute DOS interrupt;[[Functions_HI-TECH_C_SEGREAD|segread(sp)]] :Get segment register values;[[Functions_HI-TECH_C_INT86|int86(int, ip, op)]] :Execute software interrupt;[[Functions_HI-TECH_C_INT86X|int86x(int, ip, op, sp)]] :Execute software interrupt;[[Functions_HI-TECH_C_BIOS|bios(n, c)]] :Call bios entry (CP/M);[[Functions_HI-TECH_C_EI|ei()]] :Enable interrupts;[[Functions_HI-TECH_C_DI|di()]] :Disable interrupts;[[Functions_HI-TECH_C_SET_VECTOR|set_vector(vec, func)]] :Set an interrupt vector;[[Functions_HI-TECH_C_ASSERT|assert(e)]] :Run time assertion;[[Functions_HI-TECH_C_GETENV|getenv(s)]] :Get environment string (MS-DOS)
