ref: 3cb873827cfb046e36a7b7e32a707a5b7aa96426
dir: /doc/man3/strerror.3/
.TH strerror 3 .SH NAME strerror - get error message string .SH SYNOPSIS #include <string.h> char *strerror(int errnum) .SH DESCRIPTION The .BR strerror () function maps the number passed with errnum to a message string. .PP Typically, the values for .I errnum come from errno, but strerror shall map any value of type int to a message. .PP The array pointed to by the pointer returned shall not be modified by the program, but may be overwritten by a subsequent call to the .B strerror function. .SH RETURN VALUE The function returns a pointer to the string, the contents of which are locale-specific. .SH STANDARDS ISO/IEC 9899:1999 Section 7.21.6.2