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+====== Printf format <inttypes.h> ======
+**Concepts:**\\
+Use of the function ''printf'' to format the output of variables with fixed dimension, as defined in the ''<inttypes.h>'' library.\\
+The ''<inttypes.h>'' library allows the definition of variables with a fixed dimension in terms of //number of occupied bits//. For instance, the type ''uint64_t'' declares an ''unsigned integer'' variable with dimension 64 bits, and the ''int64_t'' can be used to declare a ''signed integer'' variable with dimension 64 bits. Other possible types of the library are: ''uint32_t'', ''int32_t'', ''unit16_t'', ''int16_t'', ''uint8_t'' and ''int8_t''.\\
+For printing ''uint32_t'', ''int32_t'', ''unit16_t'', ''int16_t'', ''uint8_t'' and ''int8_t'' the typical ''%u'' and ''%d'' operators of the ''printf'' function can be used, instead, to print ''uint64_t'' or ''int64_t'' we have to make use of specific macros defined in ''<inttypes.h>''. See the example.
+**Example:**\\
+<file C inttypes.c>
+/* Example of use of the function printf to format the output of variables with fixed dimension, as defined in the ''<inttypes.h>'' library */
+#include <stdio.h>
+#include <inttypes.h>
+int main() {
+  int64_t a = -3;
+  uint64_t b = 3;
+  int8_t c = -3;
+  printf("a=%" PRId64 " b=%" PRIu64 " c=%d\n", a, b, c);
+  return 0;
+}
+</file>
+**Comment:**\\
+As can be see in the example, the macros ''PRId64'' and ''PRIu64'' can be used to print ''int64_t'' and ''uint64_t'', respectively.\\
+Macro ''PRIx64'' can also be used to print hexadecimal.

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