Integrate sample and include cleanups from imneme/pcg-cpp/commit/be22608 (by brt-v)

Author: JkarVN

CREDITS.md

@@ -29,13 +29,18 @@ This modernized fork of `pcg-cpp` by **Total-Random** integrates several critica
 - **Author:** [Demonese](https://github.com/Demonese)
 - **Description:** Added native support for ARM64 on MSVC using `__umulh` for efficient 128-bit multiplication.
 
+### 6. Sample and Include Cleanups
+- **Origin:** [imneme/pcg-cpp commit be22608](https://github.com/imneme/pcg-cpp/commit/be22608ebcbe3aa0606600975705e2820600ed4e)
+- **Author:** [brt-v](https://github.com/brt-v)
+- **Description:** Simplified header includes in sample programs and added `basic_usage.cpp` sample.
+
 ## Total-Random Improvements
 
-### 6. Modern CMake Build System
+### 7. Modern CMake Build System
 - **Author:** [Total-Random](https://github.com/Total-Random)
 - **Description:** Comprehensive CMake integration with `find_package` support and automated testing via `ctest`.
 
-### 7. MSVC Compatibility Fixes
+### 8. MSVC Compatibility Fixes
 - **Author:** [Total-Random](https://github.com/Total-Random)
 - **Description:** Resolved several MSVC-specific issues:
   - `C2678` (ambiguous operator) in `set_stream` and `operator>>`.

sample/CMakeLists.txt

@@ -1,4 +1,4 @@
-set(SAMPLE_TARGETS pcg-demo codebook cppref-sample make-partytrick)
+set(SAMPLE_TARGETS basic_usage pcg-demo codebook cppref-sample make-partytrick)
 
 foreach(sample ${SAMPLE_TARGETS})
     add_executable(${sample} ${sample}.cpp)

sample/basic_usage.cpp

@@ -0,0 +1,8 @@
+
+#include "pcg_random.hpp"
+
+int main()
+{
+    pcg32 rng(42);
+    return rng() + rng();
+}

sample/pcg-demo.cpp

@@ -24,14 +24,8 @@
  * It shows some basic generation tasks.
  */
 
-#include <cstddef>
-#include <cstdint>
-#include <cstdlib>
-#include <cassert>
-#include <climits>
 #include <iostream>
 #include <iomanip>
-#include <algorithm>
 #include <numeric>
 #include <random>       // for random_device
 

sample/spew.cpp

@@ -29,9 +29,6 @@
  *      ./spew | hexdump -C | less
  */
 
-#include <cstdio>
-#include <cstddef>
-#include <cstdint>
 #include <iostream>
 #include <random>
 

sample/use-partytrick.cpp

@@ -28,12 +28,8 @@
  *      ./use-partytrick | hexdump -C | less
  */
 
-#include <cstdio>
-#include <cstddef>
-#include <cstdint>
 #include <iostream>
 #include <sstream>
-#include <string>
 #include <random>
 
 #include <unistd.h>