mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-05-18 03:22:40 +00:00
0d748ad58e
This change fixes Cosmopolitan so it has fewer opinions about compiler warnings. The whole repository had to be cleaned up to be buildable in -Werror -Wall mode. This lets us benefit from things like strict const checking. Some actual bugs might have been caught too.
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
#ifndef COSMOPOLITAN_LIBC_FMT_MAGNUMSTRS_H_
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#define COSMOPOLITAN_LIBC_FMT_MAGNUMSTRS_H_
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#define MAGNUM_TERMINATOR -123
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#define MAGNUM_NUMBER(TABLE, INDEX) \
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*(const int *)((uintptr_t)TABLE + TABLE[INDEX].x)
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#define MAGNUM_STRING(TABLE, INDEX) \
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(const char *)((uintptr_t)TABLE + TABLE[INDEX].s)
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struct MagnumStr {
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int x, s;
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};
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extern const struct MagnumStr kClockNames[];
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extern const struct MagnumStr kErrnoDocs[];
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extern const struct MagnumStr kErrnoNames[];
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extern const struct MagnumStr kFcntlCmds[];
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extern const struct MagnumStr kIpOptnames[];
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extern const struct MagnumStr kOpenFlags[];
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extern const struct MagnumStr kRlimitNames[];
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extern const struct MagnumStr kSignalNames[];
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extern const struct MagnumStr kSockOptnames[];
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extern const struct MagnumStr kTcpOptnames[];
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extern const struct MagnumStr kPollNames[];
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const char *DescribeMagnum(char *, const struct MagnumStr *, const char *, int);
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__funline const char *GetMagnumStr(const struct MagnumStr *ms, int x) {
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int i;
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for (i = 0; ms[i].x != MAGNUM_TERMINATOR; ++i) {
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if (x == MAGNUM_NUMBER(ms, i)) {
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return MAGNUM_STRING(ms, i);
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}
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}
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return 0;
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}
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/**
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* Converts errno value to descriptive sentence.
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* @return non-null rodata string or null if not found
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*/
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__funline const char *_strerdoc(int x) {
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if (x) {
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return GetMagnumStr(kErrnoDocs, x);
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} else {
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return 0;
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}
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}
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/**
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* Converts errno value to symbolic name.
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* @return non-null rodata string or null if not found
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*/
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__funline const char *_strerrno(int x) {
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if (x) {
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return GetMagnumStr(kErrnoNames, x);
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} else {
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return 0;
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}
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}
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_FMT_MAGNUMSTRS_H_ */
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