To use the functions and macros of the ANSI-C library, include the following header filenames in < >.
However, not all functions and macros defined in these header files are available. Check the functions and macros that can be used in each section of the header file below.
assert.h
ctype.h
errno.h
float.h
limits.h
math.h
setjmp.h
stdarg.h
stdbool.h
stdio.h
stdlib.h
string.h
The following header files are not supported and the functions defined in them cannot be used. Do not include these header files.
complex.h
fenv.h
inttypes.h
iso646.h
locate.h
stdalign.h
stdatomic.h
stddef.h
stdint.h
stdnoreturn.h
signal.h
tgmath.h
threads.h
time.h
uchar.h
wchar.h
wctype.h
assert.h
| Functions | Support |
|---|---|
| assert | Support |
Functions other than the above are not supported. Please do not use.
ctype.h
| Functions | Support |
|---|---|
| isalnum | Support |
| Iscntrl | Support |
| Isdigit | Support |
| Isgraph | Support |
| Islower | Support |
| Isprint | Support |
| Ispunct | Support |
| Isspace | Support |
| Isupper | Support |
| Isxdigit | Support |
| tolower | Support |
| toupper | Support |
Functions other than the above are not supported. Please do not use.
Characters other than ASCII Code (0x80 ~) may not be judged correctly.
errno.h
| Functions | Support |
|---|---|
| - | - |
Functions other than the above are not supported. Please do not use.
float.h
| Functions | Support |
|---|---|
| Macro only | Support |
Functions other than the above are not supported. Please do not use.
limits.h
| Functions | Support |
|---|---|
| Macro only | Support |
Functions other than the above are not supported. Please do not use.
math.h
| Functions | Support |
|---|---|
| acos | Support |
| asin | Support |
| atan | Support |
| atan2 | Support |
| cos | Support |
| ceil | Support |
| cosh | Support |
| exp | Support |
| fabs | Support |
| floor | Support |
| fmod | Support |
| frexp | Support |
| ldexp | Support |
| log | Support |
| log10 | Support |
| modf | Support |
| pow | Support |
| sin | Support |
| sinh | Support |
| sqrt | Support |
| tan | Support |
| tanh | Support |
Functions other than the above are not supported. Please do not use.
setjmp.h
| Functions | Support |
|---|---|
| longjmp | Support |
| setjmp | Support |
Functions other than the above are not supported. Please do not use.
stdarg.h
| Functions | Support |
|---|---|
| va_arg | Support |
| va_end | Support |
| va_start | Support |
Functions other than the above are not supported. Please do not use.
stdbool.h
| Functions | Support |
|---|---|
| bool | Support |
| true | Support |
| false | Support |
stdio.h
| Functions | Support |
|---|---|
| fclose | Support |
| feof | Support |
| ferror | Support |
| fflush | Support |
| fgetc | Support |
| fgetpos | Support |
| fopen | Support Do not fopen a file pointer that has been successfully fopened again without fclose. |
| fprintf | Support |
| fputc | Support |
| fputs | Support |
| fread | Support |
| freopen | Support Do not specify NULL for the file name. (The file pointer does not reopen the file.) |
| fseek | Support |
| fsetpos | Support |
| ftell | Support |
| fwrite | Support |
| getc | Support |
| getchar | Support |
| printf | Support |
| putc | Support |
| putchar | Support |
| puts | Support |
| remove | Support |
| rename | Support |
| rewind | Support |
| sprintf | Support |
| sscanf | Support |
| ungetc | Support |
| vfprintf | Support |
| vprintf | Support |
| vsprintf | Support |
Functions other than the above are not supported. Please do not use.
See the next page for file system restrictions.
Limits of user application:File (FlaskDisk)
stdlib.h
| Functions | Support |
|---|---|
| abs | Support |
| atof | Support |
| atoi | Support |
| atoi | Support |
| atol | Support |
| bsearch | Support |
| calloc | Support |
| div | Support |
| free | Support |
| labs | Support |
| ldiv | Support |
| malloc | Support |
| qsort | Support |
| rand | Support |
| realloc | Support |
| srand | Support |
| strtod | Support |
| strtol | Support |
| strtoul | Support |
| itoa | Support |
Functions other than the above are not supported. Please do not use.
string.h
| Functions | Support |
|---|---|
| memchr | Support |
| memcmp | Support |
| memcpy | Support |
| memmove | Support |
| memset | Support |
| strcat | Support |
| strchr | Support |
| strcmp | Support |
| strcpy | Support |
| strcspn | Support |
| strlen | Support |
| strncat | Support |
| strncmp | Support |
| strncpy | Support |
| strpbrk | Support |
| strrchr | Support |
| strspn | Support |
| strstr | Support |
| strtok | Support |
| strxfrm | Support |
Functions other than the above are not supported. Please do not use.
Last updated: 2022/01/26