Prototype (with parameters) | Comments |
memchr(s as any ptr, c as integer, n as size_t) as any ptr | Search for a character in a buffer. |
memcmp(s1 as any ptr, s2 as any ptr, n as size_t) as integer | Compare two buffers. |
memcpy(dest as any ptr, src as any ptr, n as size_t) as any ptr | Copy one buffer into another . |
memmove(dest as any ptr, src as any ptr, n as size_t) as any ptr | Move a number of bytes from one buffer lo another. |
memset(s as any ptr, c as integer, n as size_t) as any ptr | Set all bytes of a buffer to a given character. |
Prototype (with parameters) | Comments |
isalnum(c as integer) as integer | True if c is alphanumeric. |
isalpha(c as integer) as integer | True if c is a letter. |
isascii(c as integer) as integer | True if c is ASCII . |
iscntrl(c as integer) as integer | True if c is a control character. |
isdigit(c as integer) as integer | True if c is a decimal digit. |
isgraph(c as integer) as integer | True if c is a graphical character. |
islower(c as integer) as integer | True if c is a lowercase letter. |
isprint(c as integer) as integer | True if c is a printable character. |
ispunct(c as integer) as integer | True if c is a punctuation character. |
isspace(c as integer) as integer | True if c is a space character. |
isupper(c as integer) as integer | True if c is an uppercase letter. |
isxdigit(c as integer) as integer | True if c is a hexadecimal digit. |
toascii(c as integer) as integer | Convert c to ASCII . |
tolower(c as integer) as integer | Convert c to lowercase. |
toupper(c as integer) as integer | Convert c to uppercase. |
Prototype (with parameters) | Comments |
atof(string1 as zstring ptr) as double | Convert zstring to floating point value. |
atoi(string1 as zstring ptr) as integer | Convert zstring to an integer value. |
atol(string1 as zstring ptr) as integer | Convert zstring to a long integer value. |
itoa(value as integer, zstring as zstring ptr, radix as integer) as zstring ptr | Convert an integer value to a zstring using given radix. |
ltoa(value as long, zstring as zstring ptr, radix as integer) as zstring ptr | Convert long integer to zstring in a given radix. |
strtod(string1 as zstring ptr, endptr as zstring ptr) as double | Convert zstring to a floating point value. |
strtol(string1 as zstring ptr, endptr as zstring ptr, radix as integer) as long | Convert zstring to a long integer using a given radix. |
strtoul(string1 as zstring ptr, endptr as zstring ptr, radix as integer) as ulong | Convert zstring to unsigned long. |
Prototype (with parameters) | Comments |
_chdir(path as zstring ptr) as integer | Change current directory to given path. |
_getcwd(path as zstring ptr, numchars as integer) as zstring ptr | Returns name of current working directory. |
_mkdir(path as zstring ptr) as integer | Create a directory using given path name. |
_rmdir(path as zstring ptr) as integer | Delete a specified directory. |
Prototype (with parameters) | Comments |
chmod(path as zstring ptr, pmode as integer) as integer | Change permission settings of a file. |
fstat(handle as integer, buffer as type stat ptr) as integer | Get file status information. |
remove(path as zstring ptr) as integer | Delete a named file. |
rename_(oldname as zstring ptr, newname as zstring ptr) as integer | rename a file. |
stat(path as zstring ptr, buffer as type stat ptr) as integer | Get file status information of named file. |
umask(pmode as uinteger) as uinteger | Set file permission mask. |
Prototype (with parameters) | Comments |
clearerr(file_pointer as FILE ptr) | Clear error indicator of stream, |
fclose(file_pointer as FILE ptr) as integer | Close a file, |
feof(file_pointer as FILE ptr) as integer | Check if end of file occurred on a stream. |
ferror(file_pointer as FILE ptr) as integer | Check if any error occurred during file I/0. |
fflush(file_pointer as FILE ptr) as integer | Write out (flush) buffer to file. |
fgetc(file_pointer as FILE ptr) as integer | Get a character from a stream. |
fgetpos(file_pointer as FILE ptr, fpos_t current_pos) as integer | Get the current position in a stream. |
fgets(string1 as zstring ptr, maxchar as integer, file_pointer as FILE ptr) as zstring ptr | Read a zstring from a file. |
fopen(filename as zstring ptr, access_mode as zstring ptr) as FILE ptr | Open a file for buffered I/0. |
fprintf(file_pointer as FILE ptr, format_string as zstring ptr, args) as integer | Write formatted output to a file, |
fputc(c as integer, file_pointer as FILE ptr) as integer | Write a character to a stream. |
fputchar(c as integer) as integer | Write a character to stdout. |
fputs(string1 as zstring ptr, file_pointer as FILE ptr) as integer | Write a zstring to a stream. |
fread(buffer as zstring ptr, size as size_t count as size_t, file_pointer as FILE ptr) as size_t | Read unformatted data from a stream into a buffer. |
freopen(filename as zstring ptr, access as zstring ptr mode, file_pointer as FILE ptr) as FILE ptr | Reassign a file pointer to a different file. |
fscanf(file_pointer as FILE ptr, format as zstring ptr zstring, args) as integer | Read formatted input from a stream. |
fseek(file_pointer as FILE ptr, offset as long, origin as integer) as integer | Set current position in file to a new location. |
fsetpos(file_pointer as FILE ptr, current_pos as fpos_t) as integer | Set current position in file to a new location. |
ftell(file_pointer as FILE ptr) as long | Get current location in file. |
fwrite(buffer as zstring ptr, size as size_t, count as size_t file_pointer as FILE ptr) as size_t | Write unformatted data from a buffer to a stream. |
getc(file_pointer as FILE ptr) as integer | Read a character from a stream. |
getchar() as integer | Read a character from stdin. |
gets(buffer as zstring ptr) as zstring ptr | Read a line from stdin into a buffer. |
printf(format as zstring ptr _string, args) as integer | Write formatted output to stdout. |
putc(c as integer, file_pointer as FILE ptr) as integer | Write a character to a stream. |
putchar(c as integer) as integer | Write a character to stdout. |
puts(string1 as zstring ptr) as integer | Write a zstring to stdout. |
rewind(file_pointer as FILE ptr) | Rewind a file. |
scanf(format_string as zstring ptr, args) as integer | Read formatted input from stdin. |
setbuf(file_pointer as FILE ptr, buffer as zstring ptr) | Set up a new buffer for the stream. |
setvbuf(file_pointer as FILE ptr, buffer as zstring ptr, buf_type as integer, buf as size_t size) as integer | Set up new buffer and control the level of buffering on a stream. |
sprintf(string1 as zstring ptr, format_string as zstring ptr, args) as integer | Write formatted output to a zstring. |
sscanf(buffer as zstring ptr, format_string as zstring ptr, args) as integer | Read formatted input from a zstring. |
tmpfile() as FILE ptr | Open a temporary file. |
tmpnam(file_name as zstring ptr) as zstring ptr | Get temporary file name. |
ungetc(c as integer, file_pointer as FILE ptr) as integer | Push back character into stream' s buffer |
Prototype (with parameters) | Comments |
_close(handle as integer) as integer | Close a file opened for unbuffered I/O. |
_creat(filename as zstring ptr, pmode as integer) as integer | Create a new file with specified permission setting. |
_eof(handle as integer) as integer | Check for end of file. |
_lseek(handle as integer, offset as long, origin as integer) as long | Go to a specific position in a file. |
_open(filename as zstring ptr, oflag as integer, pmode as uinteger) as integer | Open a file for low-level I/O. |
_read(handle as integer, buffer as zstring ptr, length as uinteger) as integer | Read binary data from a file into a buffer. |
_write(handle as integer, buffer as zstring ptr, count as uinteger) as integer | Write binary data from a buffer to a file. |
Prototype (with parameters) | Comments |
abs_(n as integer) as integer | Get absolute value of an integer. |
acos_(x as double) as double | Compute arc cosine of x. |
asin_(x as double) as double | Compute arc sine of x. |
atan_(x as double) as double | Compute arc tangent of x. |
atan2_(y as double, x as double) as double | Compute arc tangent of y/x. |
ceil(x as double) as double | Get smallest integral value that exceeds x. |
cos_(x as double) as double | Compute cosine of angle in radians. |
cosh(x as double) as double | Compute the hyperbolic cosine of x. |
div(number as integer, denom as integer) as div_t | Divide one integer by another. |
exp_(x as double) as double | Compute exponential of x. |
fabs(x as double) as double | Compute absolute value of x. |
floor(x as double) as double | Get largest integral value less than x. |
fmod(x as double, y as double) as double | Divide x by y with integral quotient and return remainder. |
frexp(x as double, expptr as integer ptr) as double | Breaks down x into mantissa and exponent of no. |
labs(n as long) as long | Find absolute value of long integer n. |
ldexp(x as double, exp as integer) as double | Reconstructs x out of mantissa and exponent of two. |
ldiv(number as long, denom as long) as ldiv_t | Divide one long integer by another. |
log_(x as double) as double | Compute log(x). |
log10(x as double) as double | Compute log to the base 10 of x. |
modf(x as double, intptr as double ptr) as double | Breaks x into fractional and integer parts. |
pow(x as double, y as double) as double | Compute x raised to the power y. |
rand() as integer | Get a random integer between 0 and 32. |
random(max_num as integer) as integer | Get a random integer between 0 and max_num. |
randomize() | Set a random seed for the random number generator. |
sin_(x as double) as double | Compute sine of angle in radians. |
sinh(x as double) as double | Compute the hyperbolic sine of x. |
sqrt(x as double) as double | Compute the square root of x. |
srand(seed as uinteger) | Set a new seed for the random number generator (rand). |
tan_(x as double) as double | Compute tangent of angle in radians. |
tanh(x as double) as double | Compute the hyperbolic tangent of x. |
Prototype (with parameters) | Comments |
calloc(num as size_t elems, elem_size as size_t) as any ptr | Allocate an array and initialise all elements to zero . |
free(mem_address as any ptr) | Free a block of memory. |
malloc(num as size_t bytes) as any ptr | Allocate a block of memory. |
realloc(mem_address as any ptr, newsize as size_t) as any ptr | Reallocate (adjust size) a block of memory. |
Prototype (with parameters) | Comments |
abort() | Abort a process. |
execl(path as zstring ptr, arg0 as zstring ptr, arg1 as zstring ptr,..., NULL) as integer | Launch a child process (pass command line). |
execlp(path as zstring ptr, arg0 as zstring ptr, arg1 as zstring ptr,..., NULL) as integer | Launch child (use PATH, pass command line). |
execv(path as zstring ptr, argv as zstring ptr) as integer | Launch child (pass argument vector). |
execvp(path as zstring ptr, argv as zstring ptr) as integer | Launch child (use PATH, pass argument vector). |
exit_(status as integer) | Terminate process after flushing all buffers. |
getenv(varname as zstring ptr) as zstring ptr | Get definition of environment variable, |
perror(string1 as zstring ptr) | Print error message corresponding to last system error. |
putenv(envstring as zstring ptr) as integer | Insert new definition into environment table. |
raise(signum as integer) as integer | Generate a C signal (exception). |
system_(string1 as zstring ptr) as integer | Execute a resident operating system command. |
Prototype (with parameters) | Comments |
bsearch(key as any ptr, base as any ptr, num as size_t, width as size_t, compare as function(elem1 as any ptr, elem2 as any ptr) as integer) as any ptr | Perform binary search. |
qsort(base as any ptr, num as size_t, width as size_t, compare as function(elem1 as any ptr, elem2 as any ptr) as integer) | Use the quicksort algorithm to sort an array. |
Prototype (with parameters) | Comments |
stpcpy(dest as zstring ptr, src as zstring ptr) as zstring ptr | Copy one zstring into another. |
strcmp(string1 as zstring ptr, string2 as zstring ptr) as integer | Compare string1 and string2 to determine alphabetic order. |
strcpy(string1 as zstring ptr, string2 as zstring ptr) as zstring ptr | Copy string2 to string1. |
strerror(errnum as integer) as zstring ptr | Get error message corresponding to specified error number. |
strlen(string1 as zstring ptr) as integer | Determine the length of a zstring. |
strncat(string1 as zstring ptr, string2 as zstring ptr, n as size_t) as zstring ptr | Append n characters from string2 to string1. |
strncmp(string1 as zstring ptr, string2 as zstring ptr, n as size_t) as integer | Compare first n characters of two strings. |
strncpy(string1 as zstring ptr, string2 as zstring ptr, n as size_t) as zstring ptr | Copy first n characters of string2 to string1. |
strnset(string1 as zstring ptr, c as integer, size _t n) as zstring ptr | Set first n characters of zstring to c. |
strrchr(string1 as zstring ptr, c as integer) as zstring ptr | Find last occurrence of character c in zstring. |
Prototype (with parameters) | Comments |
asctime(time as type tm ptr) as zstring ptr | Convert time from type tm to zstring. |
clock() as clock_t | Get elapsed processor time in clock ticks. |
ctime(time as time_t ptr) as zstring ptr | Convert binary time to zstring. |
difftime(time_t time2, time_t time1) as double | Compute the difference between two times in seconds. |
gmtime(time as time_t ptr) as type tm ptr | Get Greenwich Mean Time (GMT) in a tm structure. |
localtime(time as time_t ptr) as type tm ptr | Get the local time in a tm structure. |
time_(timeptr as time_t ptr) as time_t | Get current time as seconds elapsed since 0 hours GMT 1/1/70. |