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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [string/] [strerror_r.c] - Rev 262
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/* FUNCTION <<strerror_r>>---convert error number to string and copy to buffer INDEX strerror_r ANSI_SYNOPSIS #include <string.h> char *strerror_r(int <[errnum]>, char *<[buffer]>, size_t <[n]>); TRAD_SYNOPSIS #include <string.h> char *strerror_r(<[errnum]>, <[buffer]>, <[n]>) int <[errnum]>; char *<[buffer]>; size_t <[n]>; DESCRIPTION <<strerror_r>> converts the error number <[errnum]> into a string and copies the result into the supplied <[buffer]> for a length up to <[n]>, including the NUL terminator. The value of <[errnum]> is usually a copy of <<errno>>. If <<errnum>> is not a known error number, the result is the empty string. See <<strerror>> for how strings are mapped to <<errnum>>. RETURNS This function returns a pointer to a string. Your application must not modify that string. PORTABILITY <<strerror_r>> is a GNU extension. <<strerror_r>> requires no supporting OS subroutines. */ #undef __STRICT_ANSI__ #include <errno.h> #include <string.h> char * _DEFUN (strerror_r, (errnum, buffer, n), int errnum _AND char *buffer _AND size_t n) { char *error; error = strerror (errnum); return strncpy (buffer, (const char *)error, n); }
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