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Add dontthrow attribute to most libc functions

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This will help C++ code that uses exceptions to be tinier. For example,
this change shaves away 1000 lines of assembly code from LLVM's libcxx,
which is 0.7% of all assembly instructions in the entire library.
This commit is contained in:
Justine Tunney 2024-01-09 01:26:03 -08:00
parent cb19e172da
commit eeb20775d2
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GPG key ID: BE714B4575D6E328
103 changed files with 1455 additions and 1456 deletions
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36
libc/fmt/itoa.h
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@ -22,24 +22,24 @@ COSMOPOLITAN_C_START_
#define uint64toarray_fixed16 __uint64toarray_fixed16
#define uint64toarray_radix8 __uint64toarray_radix8
unsigned LengthInt64(int64_t) pureconst;
unsigned LengthUint64(uint64_t) pureconst;
unsigned LengthInt64Thousands(int64_t) pureconst;
unsigned LengthUint64Thousands(uint64_t) pureconst;
char *FormatInt32(char[hasatleast 12], int32_t);
char *FormatUint32(char[hasatleast 12], uint32_t);
char *FormatInt64(char[hasatleast 21], int64_t);
char *FormatUint64(char[hasatleast 21], uint64_t);
char *FormatInt64Thousands(char[hasatleast 27], int64_t);
char *FormatUint64Thousands(char[hasatleast 27], uint64_t);
char *FormatOctal32(char[hasatleast 13], uint32_t, bool32);
char *FormatOctal64(char[hasatleast 24], uint64_t, bool32);
char *FormatBinary64(char[hasatleast 67], uint64_t, char);
char *FormatHex64(char[hasatleast 19], uint64_t, char);
char *FormatFlex64(char[hasatleast 24], int64_t, char);
size_t uint64toarray_radix16(uint64_t, char[hasatleast 17]);
size_t uint64toarray_fixed16(uint64_t, char[hasatleast 17], uint8_t);
size_t uint64toarray_radix8(uint64_t, char[hasatleast 24]);
libcesque unsigned LengthInt64(int64_t) pureconst;
libcesque unsigned LengthUint64(uint64_t) pureconst;
libcesque unsigned LengthInt64Thousands(int64_t) pureconst;
libcesque unsigned LengthUint64Thousands(uint64_t) pureconst;
libcesque char *FormatInt32(char[hasatleast 12], int32_t);
libcesque char *FormatUint32(char[hasatleast 12], uint32_t);
libcesque char *FormatInt64(char[hasatleast 21], int64_t);
libcesque char *FormatUint64(char[hasatleast 21], uint64_t);
libcesque char *FormatInt64Thousands(char[hasatleast 27], int64_t);
libcesque char *FormatUint64Thousands(char[hasatleast 27], uint64_t);
libcesque char *FormatOctal32(char[hasatleast 13], uint32_t, bool32);
libcesque char *FormatOctal64(char[hasatleast 24], uint64_t, bool32);
libcesque char *FormatBinary64(char[hasatleast 67], uint64_t, char);
libcesque char *FormatHex64(char[hasatleast 19], uint64_t, char);
libcesque char *FormatFlex64(char[hasatleast 24], int64_t, char);
libcesque size_t uint64toarray_radix16(uint64_t, char[hasatleast 17]);
libcesque size_t uint64toarray_fixed16(uint64_t, char[hasatleast 17], uint8_t);
libcesque size_t uint64toarray_radix8(uint64_t, char[hasatleast 24]);
COSMOPOLITAN_C_END_
#endif /* _COSMO_SOURCE */