test even more stuff

Author: cirosantilli

README.md

@@ -15,7 +15,7 @@ C, C++, POSIX and Linux system programming minimal examples. Asserts used wherev
     1.  [GCC](gcc/): GCC extensions
     1.  [Shared library](shared-library/)
 1.  Introduction
-    1. [C vs C++](c-vs-cpp.md)
+    1.  [C vs C++](c-vs-cpp.md)
 1.  Cross-language
     1.  [C from C++](c-from-cpp/)
     1.  [C++ from C](cpp-from-c/)
@@ -51,21 +51,22 @@ C, C++, POSIX and Linux system programming minimal examples. Asserts used wherev
     1.  [glibc](glibc/)
     1.  [Linux](linux/)
 1.  GUI
-    1. [GTK](gtk/)
-    1. [KDE](kde/)
-    1. [OpenGL](opengl/)
-    1. [Qt](qt/)
-    1. [SDL](sdl/)
-    1. [X11](x11)
+    1.  [GTK](gtk/)
+    1.  [KDE](kde/)
+    1.  [OpenGL](opengl/)
+    1.  [Qt](qt/)
+    1.  [SDL](sdl/)
+    1.  [X11](x11/)
+        1.  [X11 hello world](x11/hello_world.c)
 1.  Scientific
-    1. [Bullet physics](bullet/)
-    1. [CUDA](cuda/)
-    1. [Fortran](fortran/)
-    1. [GSL](gsl/)
-    1. [LAPACK](lapack/)
-    1. [OpenCL](opencl/)
-    1. [OpenCV](opencv/)
-    1. [PLplot](plplot/)
+    1.  [Bullet physics](bullet/)
+    1.  [CUDA](cuda/)
+    1.  [Fortran](fortran/)
+    1.  [GSL](gsl/)
+    1.  [LAPACK](lapack/)
+    1.  [OpenCL](opencl/)
+    1.  [OpenCV](opencv/)
+    1.  [PLplot](plplot/)
 1.  [CONTRIBUTING](CONTRIBUTING.md)
 1.  [TODO](TODO.md)
 1.  [Bibliography](bibliography.md)

boost/Makefile_params

@@ -1 +1 @@
-LIBS	:= -lm -lboost_graph -lboost_filesystem -lboost_system
+LIBS := -lm -lboost_graph -lboost_filesystem -lboost_system

c-from-cpp/Makefile

@@ -1,17 +1,18 @@
 .POSIX:
-.PHONY: run clean
 
-main.out: main.o c.o
-	g++ -o '$@' $^
+.PHONY: clean run test
 
-c.o: c.c
-	gcc -c -g -o '$@' -std=c89 -Wall -Wextra -pedantic-errors '$<'
+main.out: main.o notmain.o
+	g++ -o '$@' $^
 
 main.o: main.cpp
 	g++ -c -g -o '$@' -std=c++98 -Wall -Wextra -pedantic-errors '$<'
 
-run: main.out
-	./main.out
+notmain.o: notmain.c
+	gcc -c -g -o '$@' -std=c89 -Wall -Wextra -pedantic-errors '$<'
 
 clean:
 	rm -f *.o *.out
+
+test: main.out
+	./main.out

c-from-cpp/README.md

@@ -1,3 +1 @@
-# C from C++
-
-<https://stackoverflow.com/questions/1041866/what-is-the-effect-of-extern-c-in-c/30526795#30526795>
+https://stackoverflow.com/questions/1041866/what-is-the-effect-of-extern-c-in-c/30526795#30526795

c-from-cpp/c.c

@@ -1,7 +1,7 @@
 #include <cassert>
 
-#include "c.h"
+#include "notmain.h"
 
 int main() {
-    assert(f() == 1);
+    assert(notmain_func() == 1);
 }

c-from-cpp/main.cpp

@@ -0,0 +1,3 @@
+#include "notmain.h"
+
+int notmain_func(void) { return 1; }

c-from-cpp/notmain.c

@@ -1,11 +1,11 @@
-#ifndef C_H
-#define C_H
+#ifndef NOTMAIN_H
+#define NOTMAIN_H
 
 /* This ifdef allows the header to be used from both C and C++. */
 #ifdef __cplusplus
 extern "C" {
 #endif
-    int f();
+    int notmain_func(void);
 #ifdef __cplusplus
 }
 #endif

c-from-cpp/c.h renamed to c-from-cpp/notmain.h

@@ -1,17 +1,18 @@
 .POSIX:
+
 .PHONY: run clean
 
-main.out: main.o cpp.o
+main.out: main.o notmain.o
 	g++ -o '$@' $^
 
-cpp.o: cpp.cpp
+notmain.o: notmain.cpp
 	g++ -c -g -o '$@' -pedantic-errors -std=c++98 -Wall -Wextra '$<'
 
 main.o: main.c
 	gcc -c -g -o '$@' -pedantic-errors -std=c89 -Wall -Wextra '$<'
 
-run: main.out
-	./main.out
-
 clean:
 	rm -f *.o *.out
+
+test: main.out
+	./main.out

cpp-from-c/Makefile

@@ -1,3 +1 @@
-# C++ from C
-
-<https://stackoverflow.com/questions/1041866/what-is-the-effect-of-extern-c-in-c/30526795#30526795>
+https://stackoverflow.com/questions/1041866/what-is-the-effect-of-extern-c-in-c/30526795#30526795

cpp-from-c/README.md

@@ -1,6 +1,6 @@
 #include <assert.h>
 
-#include "cpp.h"
+#include "notmain.hpp"
 
 int main(void) {
     assert(f_int(1) == 2);

cpp-from-c/main.c

@@ -1,4 +1,4 @@
-#include "cpp.h"
+#include "notmain.hpp"
 
 int f(int i) {
     return i + 1;

cpp-from-c/cpp.cpp renamed to cpp-from-c/notmain.cpp

@@ -1,5 +1,5 @@
-#ifndef CPP_H
-#define CPP_H
+#ifndef NOTMAIN_HPP
+#define NOTMAIN_HPP
 
 #ifdef __cplusplus
 // C cannot see these overloaded prototypes, or else it would get confused.

cpp-from-c/cpp.h renamed to cpp-from-c/notmain.hpp

@@ -1,11 +1,11 @@
 CC_DL = gcc -ggdb3 -std=c89 -Wall -Wextra
 CC = $(CC_DL) -pedantic-errors
 
-.PHONY: all clean run
+.PHONY: all clean test
 
 all: maina.out mainso.out mainso_fullpath.out dlopen.out
 
-run: all
+test: all
 	./maina.out
 	LD_LIBRARY_PATH=. ./mainso.out
 	./mainso_fullpath.out

shared-library/basic/Makefile

@@ -1,3 +1,5 @@
+/* Used by: https://unix.stackexchange.com/questions/226524/what-system-call-is-used-to-load-libraries-in-linux/462710#462710 */
+
 #define _XOPEN_SOURCE 700
 #include <assert.h>
 #include <dlfcn.h>

shared-library/basic/dlopen.c

@@ -1,12 +1,12 @@
 CC := gcc -pedantic-errors -std=c89 -Wall -Wextra
 
-.PHONY: all clean run
+.PHONY: all clean test
 
 main.out: main.o libcirosantilli_a.so
 	$(CC) -L'.' main.o -o '$@' -lcirosantilli_a
 	@#LD_LIBRARY_PATH=. $(CC) -L'.' main.o -o '$@' -lcirosantilli_a
 
-run: main.out
+test: main.out
 	LD_LIBRARY_PATH=. ./main.out
 
 libcirosantilli_a.so: a.o libcirosantilli_b.so

shared-library/lib-lib-dependency/Makefile

@@ -1,10 +1,10 @@
 CC := gcc -pedantic-errors -std=c89 -Wall -Wextra
 
-.PHONY: all clean run
+.PHONY: all clean test
 
 all: main.out main1.out main2.out
 
-run: all
+test: all
 	LD_LIBRARY_PATH=. ./main.out
 	LD_LIBRARY_PATH=. ./main1.out
 	LD_LIBRARY_PATH=. ./main2.out

shared-library/symbol-version/Makefile

@@ -1,7 +1 @@
-# Symbol version
-
-Trying to replicate glibc's `symbol@@VERSION` madness.
-
-This allows you to have a single library `v2`, that also contains symbols from `v1`.
-
-<https://stackoverflow.com/questions/8823267/linking-against-older-symbol-version-in-a-so-file/51856826#51856826>
+https://stackoverflow.com/questions/8823267/linking-against-older-symbol-version-in-a-so-file/51856826#51856826

shared-library/symbol-version/README.md

@@ -4,7 +4,8 @@
 #include "a.h"
 
 /* TODO: any clearer way of doing this maybe
- * with some compilation option only? */
+ * with some compilation option only?
+ */
 #if defined(V1)
 __asm__(".symver a,a@LIBA_1");
 #elif defined(V2)

shared-library/symbol-version/main.c

@@ -7,17 +7,22 @@ top="$(pwd)"
 # make test
 for t in \
     c \
+    c-from-cpp \
     c/extern \
     c/static/function \
     c/static/variable \
     cpp \
+    cpp-from-c \
     cpp/extern_const \
     cpp/inline_variable \
     gcc \
     glibc \
     linker/incremental-link \
     linker/variable-address \
     posix \
+    shared-library/basic \
+    shared-library/lib-lib-dependency \
+    shared-library/symbol-version \
   ; do
   if ! make -C "$t" -j`nproc` test; then
     echo "TEST FAILED: $t"

test

@@ -0,0 +1 @@
+../Makefile_many

x11/Makefile

@@ -0,0 +1 @@
+LIBS := -lX11

x11/Makefile

@@ -1,7 +1,6 @@
 # X11
 
 1. [Hello world](hello_world.c)
-1. [Bibliography](bibliography.md)
 
 Major graphical system on Linux systems.
 

x11/Makefile_params

@@ -1,32 +1,34 @@
-/*
-x11 c interface hello world
-
-Expected outcome: shows a window with white background
-and a black X drawn on it.
-
-Exit when either:
-
-- the X close button of the window is clicked
-- a mouse on the window is released
-*/
+/* x11 c interface hello world
+ *
+ * Expected outcome: shows a window with white background
+ * and a black X drawn on it.
+ *
+ * Exit when either:
+ *
+ * - the X close button of the window is clicked
+ * - a mouse on the window is released
+ */
 
 #include <stdlib.h>
 
 #include "X11/Xlib.h"
 
 int main(void) {
     Display *dsp = XOpenDisplay(NULL);
-    if (!dsp){ return EXIT_FAILURE; }
+    if (!dsp) {
+        return EXIT_FAILURE;
+    }
     int screenNumber = DefaultScreen(dsp);
     unsigned long white = WhitePixel(dsp, screenNumber);
     unsigned long black = BlackPixel(dsp, screenNumber);
     Window win = XCreateSimpleWindow(
-            dsp,
-            DefaultRootWindow(dsp),
-            50, 50,
-            200, 200,
-            0, black,
-            white);
+        dsp,
+        DefaultRootWindow(dsp),
+        50, 50,
+        200, 200,
+        0, black,
+        white
+    );
     XMapWindow(dsp, win);
     long eventMask = StructureNotifyMask;
     XSelectInput(dsp, win, eventMask);