Table [tab:iostreams.hdr.cstdio] describes header <cstdio>. [ Note: C++ does not define the function gets. — end note ]
| Type | Name(s) | ||||
| Macros: | |||||
| BUFSIZ | FOPEN_MAX | SEEK_CUR | TMP_MAX | _IONBF | stdout |
| EOF | L_tmpnam | SEEK_END | _IOFBF | stderr | |
| FILENAME_MAX | NULL <cstdio> | SEEK_SET | _IOLBF | stdin | |
| Types: | FILE | fpos_t | size_t <cstdio> | ||
| Functions: | |||||
| clearerr | fopen | fsetpos | putchar | snprintf | vscanf |
| fclose | fprintf | ftell | puts | sprintf | vsnprintf |
| feof | fputc | fwrite | remove | sscanf | vsprintf |
| ferror | fputs | getc | rename | tmpfile | vsscanf |
| fflush | fread | getchar | rewind | tmpnam | |
| fgetc | freopen | perror | scanf | ungetc | |
| fgetpos | fscanf | printf | setbuf | vfprintf | |
| fgets | fseek | putc | setvbuf | vprintf | |
Calls to the function tmpnam with an argument of NULL may introduce a data race ([res.on.data.races]) with other calls to tmpnam with an argument of NULL.
See also: ISO C 7.9, Amendment 1 4.6.2.
Table [tab:iostreams.hdr.cinttypes] describes header <cinttypes>. [ Note: The macros defined by <cinttypes> are provided unconditionally. In particular, the symbol __STDC_FORMAT_MACROS, mentioned in footnote 182 of the C standard, plays no role in C++. — end note ]
| Type | Name(s) | ||
| Macros: | |||
| PRI{d i o u x X}[FAST LEAST]{8 16 32 64} | |||
| PRI{d i o u x X}{MAX PTR} | |||
| SCN{d i o u x X}[FAST LEAST]{8 16 32 64} | |||
| SCN{d i o u x X}{MAX PTR} | |||
| Types: | imaxdiv_t | ||
| Functions: | |||
| abs | imaxabs | strtoimax | wcstoimax |
| div | imaxdiv | strtoumax | wcstoumax |
The contents of header <cinttypes> are the same as the Standard C Library header <inttypes.h>, with the following changes:
the header <cinttypes> includes the header <cstdint> instead of <stdint.h>, and
if and only if the type intmax_t designates an extended integer type ([basic.fundamental]), the following function signatures are added:
intmax_t abs(intmax_t); imaxdiv_t div(intmax_t, intmax_t);
which shall have the same semantics as the function signatures intmax_t imaxabs(intmax_t) and imaxdiv_t imaxdiv(intmax_t, intmax_t), respectively.