cosmopolitan/libc/fmt/fmt.h
Justine Tunney 868af3f950 Import C++ Standard Template Library
You can now use the hardest fastest and most dangerous language there is
with Cosmopolitan. So far about 75% of LLVM libcxx has been added. A few
breaking changes needed to be made to help this go smoothly.

- Rename nothrow to dontthrow
- Rename nodiscard to dontdiscard
- Add some libm functions, e.g. lgamma, nan, etc.
- Change intmax_t from int128 to int64 like everything else
- Introduce %jjd formatting directive for int128_t
- Introduce strtoi128(), strtou128(), etc.
- Rename bsrmax() to bsr128()

Some of the templates that should be working currently are std::vector,
std::string, std::map, std::set, std::deque, etc.
2022-03-22 06:41:54 -07:00

52 lines
3 KiB
C

#ifndef COSMOPOLITAN_LIBC_FMT_FMT_H_
#define COSMOPOLITAN_LIBC_FMT_FMT_H_
#include "libc/fmt/pflink.h"
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § string formatting ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
#if __SIZEOF_POINTER__ == 8
#define POINTER_XDIGITS 12 /* math.log(2**48-1,16) */
#else
#define POINTER_XDIGITS 8
#endif
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
int snprintf(char *, size_t, const char *, ...) printfesque(3)
paramsnonnull((3)) dontthrow nocallback;
int vsnprintf(char *, size_t, const char *, va_list)
paramsnonnull((3)) dontthrow nocallback;
int sprintf(char *, const char *, ...) printfesque(2)
paramsnonnull((2)) dontthrow nocallback frownedupon(snprintf);
int vsprintf(char *, const char *, va_list)
paramsnonnull((2)) dontthrow nocallback frownedupon(vsnprintf);
int sscanf(const char *, const char *, ...) scanfesque(2);
int vsscanf(const char *, const char *, va_list);
int vcscanf(int (*)(void *), int (*)(int, void *), void *, const char *,
va_list);
int strerror_r(int, char *, size_t) dontthrow nocallback;
const char *strerror_short(int) nosideeffect;
const char *strerror_long(int) nosideeffect;
int __fmt(void *, void *, const char *, va_list) hidden;
char *itoa(int, char *, int) compatfn;
char *fcvt(double, int, int *, int *);
char *ecvt(double, int, int *, int *);
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § string formatting » optimizations ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
#define sprintf(BUF, FMT, ...) (sprintf)(BUF, PFLINK(FMT), ##__VA_ARGS__)
#define vsprintf(BUF, FMT, VA) (vsprintf)(BUF, PFLINK(FMT), VA)
#define snprintf(B, Z, F, ...) (snprintf)(B, Z, PFLINK(F), ##__VA_ARGS__)
#define vsnprintf(BUF, SIZE, FMT, VA) (vsnprintf)(BUF, SIZE, PFLINK(FMT), VA)
#define sscanf(STR, FMT, ...) (sscanf)(STR, SFLINK(FMT), ##__VA_ARGS__)
#define vsscanf(STR, FMT, VA) (vsscanf)(STR, SFLINK(FMT), VA)
#endif
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_FMT_FMT_H_ */