assert.h progress

code/assert.c

@@ -0,0 +1,46 @@
+
+#include <assert.h>
+#include <stdlib.h>
+#include <_platform.h>
+
+#if defined(_os_win)
+    #define WIN32_LEAN_AND_MEAN
+    #include<Windows.h>
+
+    // TODO: make it work via printf
+
+    static int _assert_strlen(char const *str)
+    {
+        int len = 0;
+        while(*str++!=0) ++len;
+        return len;
+    }
+
+    static void _assert_win32_prints(HANDLE conout, char const *str)
+    {
+        DWORD written = 0;
+        WriteConsole(conout, str, _assert_strlen(str), &written, NULL);
+    }
+
+    extern void _assert_print(char *cond, char const *func, char const *file, char const *line)
+    {
+        HANDLE conout = GetStdHandle(STD_OUTPUT_HANDLE);
+        if(conout != INVALID_HANDLE_VALUE) {
+            _assert_win32_prints(conout, "Assertion Failed: ");
+            _assert_win32_prints(conout, cond);
+            _assert_win32_prints(conout, "\n\tFile: ");
+            _assert_win32_prints(conout, file);
+            _assert_win32_prints(conout, "\n\tFunc: ");
+            _assert_win32_prints(conout, func);
+            _assert_win32_prints(conout, "\n\tLine: ");
+            _assert_win32_prints(conout, line);
+        }
+        else {
+            // TODO:
+            MessageBoxA(NULL,
+                "Assertion Failed Somewhere, good luck finding it!\n",
+                "Error",
+                MB_OK);
+        }
+    }
+#endif

code/entry_windows.c

@@ -0,0 +1,9 @@
+
+#include<_platform.h>
+
+extern int main();
+
+int mainCRTStartup()
+{
+    return main();
+}

inc/_platform.h

@@ -0,0 +1,47 @@
+#if !defined(_platform_h)
+#define _platform_h
+
+// Compiler Identification
+
+#if defined(_MSC_VER) && !defined(__clang__)
+    #define _compiler_msvc
+#endif
+
+#if defined(__GNUC__) && !defined(__clang__)
+    #define _compiler_gnu
+#endif
+
+#if defined(__clang__)
+    #define _compiler_clang
+#endif
+
+#if !(defined(_compiler_msvc) \
+   || defined(_compiler_gnu) \
+   || defined(_compiler_clang))
+    #error "Unsupported Compiler"
+#endif
+
+#if !defined(_func)
+    #if defined(_compiler_msvc)
+        #define _func __FUNCTION__
+    #else
+        #define _func __func__
+    #endif
+#endif
+
+// OS Identification
+
+#if defined(_WIN32)
+    #define _os_win
+#endif
+
+#if defined(__linux__) && !defined(__ANDROID__)
+    #define _os_linux
+#endif
+
+#if !(defined(_os_win) \
+   || defined(_os_linux))
+    #error "Unsupported OS"
+#endif
+
+#endif

inc/assert.h

@@ -0,0 +1,32 @@
+#if !defined(_assert_h)
+#define _assert_h
+
+#include "_platform.h"
+
+extern void _assert_print(char *cond, char const *func, char const *file, char const *line);
+
+// TODO: use abort() to break
+#if defined(_compiler_msvc)
+    #include <intrin.h>
+    #define _compiler_brk __debugbreak
+#else
+    #define _compiler_brk __builtin_trap
+#endif
+
+#define _str_(x) #x
+#define _str(x) _str_(x)
+
+#if defined(NDEBUG)
+    #define assert(ignore) ((void)0)
+#else
+    #define _static_assert _Static_assert
+    #define assert(condition)                                                 \
+        do {                                                                  \
+            if(!(condition)) {                                                \
+                _assert_print(#condition, _func, __FILE__, _str(__LINE__));   \
+                _compiler_brk();                                              \
+            }                                                                 \
+        } while(0)
+#endif
+
+#endif

inc/complex.h

@@ -0,0 +1,2 @@
+
+#error "Complex Numbers aren't implemented"

inc/stdio.h

@@ -0,0 +1,4 @@
+
+#define EOF -1
+
+

inc/stdlib.h

@@ -0,0 +1,2 @@
+
+#define NULL ((void *)0)

makefile

@@ -0,0 +1,20 @@
+
+GNUFLAGS=-Iinc -Icode
+CLFLAGS=/link /incremental:no /subsystem:windows /nodefaultlib kernel32.lib 
+
+CC=clang
+CFLAGS=$(GNUFLAGS)
+LDFLAGS=/nologo /nodefaultlib /entry:mainCRTStartup
+
+SRC_DIR := code
+OBJ_DIR := build
+SRC_FILES := $(wildcard $(SRC_DIR)/*.c)
+OBJ_FILES := $(patsubst $(SRC_DIR)/%.c,$(OBJ_DIR)/%.o,$(SRC_FILES))
+
+ciabatta.lib: $(OBJ_FILES)
+	lib $(LDFLAGS) /out:lib/$@ $^
+
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+.PHONY: ciabatta.lib

test/bake.bat

@@ -0,0 +1,6 @@
+@echo off
+cl /c /I ..\inc /nologo /Gm- /GR- /EHa- /Oi /W4 /Z7 test.c
+clang -c -Wall test.c -otest1.obj
+
+link /nologo test.obj /nodefaultlib user32.lib kernel32.lib ..\lib\ciabatta.lib -subsystem:console
+link /nologo test1.obj /nodefaultlib user32.lib kernel32.lib ..\lib\ciabatta.lib -subsystem:console

test/test.c

@@ -0,0 +1,8 @@
+// MSVC won't use my <assert.h> unless i provide path explicitly
+// idk
+#include"..\inc\assert.h"
+int main()
+{
+    assert(0);
+    return 0;
+}