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+{{keywords>wiki library source code example reference}}
+====== labs ======
+<code c>
+    #include <stdlib.h>
+    long int labs(long int x);
+</code>
+computes the absolute value of a long integer\\
+\\
+returns the absolute value of a number\\
+the case of a negative number the sign is reversed, a positive number is returned unchanged.\\
+labs is functionally equivalent to abs (), but uses the data type long int\\
+===== C Sourcecode Example =====
+<code c>
+#include <stdio.h> /* including standard library */
+//#include <windows.h> /* uncomment this for Windows */
+ /* for printf */
+#include <stdlib.h>
+int main( void )
+{
+  long int i = -42;
+  printf("labs from i = %li\n", labs(i));
+  return 0;
+}
+</code>
+==== output with abort: ====
+    user@host:~/code-reference.com# ./labs
+    labs from i = 42

on the occasion of the current invasion of Russia in Ukraine