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code/C/Makefile

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+
+# exemples pour le chapitre sur le C
+# new Sat Feb 11 12:06:34 CET 2023
+
+no-op:			no-op.c Makefile
+	gcc -Wall $< -o $@
+
+slowprint:		slowprint.c Makefile
+	gcc -Wall $< -o $@
+

code/C/no-op.c

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+/*
+ *	no-op.c is an useless shell filter
+ */
+#include  <stdio.h>
+#include  <ctype.h>
+
+int main(int argc, char *argv[])
+{
+int	quux, baz;
+
+while (EOF != (quux=getchar())) {
+	baz = toupper(quux);
+	if ('O'==baz || 'P'==baz) continue;
+	putchar(quux);
+	}
+
+return 0;
+}

code/C/slowprint.c

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+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+
+int main(int argc, char *argv[])
+{
+int c;
+struct timespec ts;
+
+ts.tv_sec = 0;
+ts.tv_nsec = 115 * 1000 * 1000;
+while ( EOF != (c=getchar()) )
+	{
+	putchar(c);
+	fflush(stdout);
+	nanosleep(&ts, NULL);
+	}
+
+return 0;
+}