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system/Error: fix duplicate strerror() call

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Apparently, the std::system_error constructor appends strerror()
already.
This commit is contained in:
Max Kellermann 2015-12-27 06:04:57 +01:00
parent e939d667d9
commit 672e18cac9
1 changed files with 2 additions and 8 deletions
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10
src/system/Error.hxx
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@ -111,14 +111,8 @@ static inline std::system_error
FormatErrno(int code, const char *fmt, Args&&... args) FormatErrno(int code, const char *fmt, Args&&... args)
{ {
char buffer[512]; char buffer[512];
const auto end = buffer + sizeof(buffer); snprintf(buffer, sizeof(buffer),
size_t length = snprintf(buffer, sizeof(buffer) - 128, fmt, std::forward<Args>(args)...);
fmt, std::forward<Args>(args)...);
char *p = buffer + length;
*p++ = ':';
*p++ = ' ';
CopyString(p, strerror(code), end - p);
return MakeErrno(code, buffer); return MakeErrno(code, buffer);
} }