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-rw-r--r--src/string/strerror/strerror.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/src/string/strerror/strerror.c b/src/string/strerror/strerror.c
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+/**
+ * slibc — Yet another C library
+ * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <string.h>
+
+
+
+/**
+ * Return a textual representation of an error code.
+ * This error code must from `errno`.
+ *
+ * This implementation of `strerror` cannot fail. however
+ * POSIX specifies that it can fail, any may only set `errno`
+ * if it does fail. You should therefore, set `errno` to
+ * zero before calling this function, and inspect `errno`
+ * when it returns, as there is no reserved return value
+ * that indicates and error.
+ *
+ * The returned value must not be modified or freed.
+ *
+ * As a slibc-specific modification, this function is MT-Safe.
+ *
+ * @param errnum The error code.
+ * @return A description of the error.
+ */
+char* strerror(int errnum)
+{
+ return strerror_l(errnum, 0 /* TODO CURRENT_LOCALE, not defined */);
+}
+