Use STL C++ instead of macro

Signed-off-by: Frederic.Pillon <frederic.pillon@st.com>

Author: fpistm

cores/arduino/wiring_constants.h

@@ -19,11 +19,26 @@
 #ifndef _WIRING_CONSTANTS_
 #define _WIRING_CONSTANTS_
 
+#include <stdbool.h>
+
 #ifdef __cplusplus
-extern "C"{
-#endif // __cplusplus
+#include <algorithm>
+using std::min;
+using std::max;
+#else // C
+#ifndef abs
+#define abs(x) ((x)>0?(x):-(x))
+#endif // abs
 
-#include <stdbool.h>
+#ifndef min
+#define min(a,b) ((a)<(b)?(a):(b))
+#endif // min
+
+#ifndef max
+#define max(a,b) ((a)>(b)?(a):(b))
+#endif // max
+
+#endif // __cplusplus
 
 #define HIGH 0x1
 #define LOW  0x0
@@ -57,22 +72,8 @@ enum BitOrder {
 #define DEFAULT 1
 #define EXTERNAL 0
 
-// undefine stdlib's abs if encountered
-#ifdef abs
-#undef abs
-#endif // abs
-
-#ifndef min
-#define min(a,b) ((a)<(b)?(a):(b))
-#endif // min
-
-#ifndef max
-#define max(a,b) ((a)>(b)?(a):(b))
-#endif // max
-
-#define abs(x) ((x)>0?(x):-(x))
 #define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
-#define round(x)     ((x)>=0?(long)((x)+0.5):(long)((x)-0.5))
+
 #define radians(deg) ((deg)*DEG_TO_RAD)
 #define degrees(rad) ((rad)*RAD_TO_DEG)
 #define sq(x) ((x)*(x))
@@ -106,8 +107,4 @@ typedef bool boolean ;
 
 typedef uint8_t byte ;
 
-#ifdef __cplusplus
-} // extern "C"
-#endif // __cplusplus
-
 #endif /* _WIRING_CONSTANTS_ */

platform.txt

@@ -28,7 +28,7 @@ compiler.c.elf.flags=-mthumb {build.flags.optimize} {build.flags.ldspecs} -Wl,--
 compiler.S.cmd=arm-none-eabi-gcc
 compiler.S.flags=-mthumb -c -x assembler-with-cpp {compiler.stm.extra_include}
 compiler.cpp.cmd=arm-none-eabi-g++
-compiler.cpp.flags=-mthumb -c {build.flags.optimize} {compiler.warning_flags} -std=gnu++11 -ffunction-sections -fdata-sections -nostdlib -fno-threadsafe-statics --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -Dprintf=iprintf -MMD {compiler.stm.extra_include}
+compiler.cpp.flags=-mthumb -c {build.flags.optimize} {compiler.warning_flags} -std=gnu++11 -ffunction-sections -fdata-sections -nostdlib -fno-threadsafe-statics --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -MMD {compiler.stm.extra_include}
 compiler.ar.cmd=arm-none-eabi-gcc-ar
 compiler.ar.flags=rcs
 compiler.objcopy.cmd=arm-none-eabi-objcopy
@@ -85,7 +85,7 @@ recipe.S.o.pattern="{compiler.path}{compiler.S.cmd}" {compiler.S.flags} -mcpu={b
 recipe.ar.pattern="{compiler.path}{compiler.ar.cmd}" {compiler.ar.flags} {compiler.ar.extra_flags} "{archive_file_path}" "{object_file}"
 
 ## Combine gc-sections, archives, and objects
-recipe.c.combine.pattern="{compiler.path}{compiler.c.elf.cmd}" {compiler.c.elf.flags} -mcpu={build.mcu} -DF_CPU={build.f_cpu} "-T{build.variant.path}/{build.ldscript}" "-Wl,-Map,{build.path}/{build.project_name}.map" {compiler.c.elf.extra_flags} {compiler.ldflags} -o "{build.path}/{build.project_name}.elf" "-L{build.path}" -Wl,--start-group {object_files}  {compiler.arm.cmsis.ldflags} -Wl,--whole-archive "{archive_file_path}" -Wl,--no-whole-archive -lc -Wl,--end-group -lm -lgcc --specs=nano.specs
+recipe.c.combine.pattern="{compiler.path}{compiler.c.elf.cmd}" {compiler.c.elf.flags} -mcpu={build.mcu} -DF_CPU={build.f_cpu} "-T{build.variant.path}/{build.ldscript}" "-Wl,-Map,{build.path}/{build.project_name}.map" {compiler.c.elf.extra_flags} {compiler.ldflags} -o "{build.path}/{build.project_name}.elf" "-L{build.path}" -Wl,--start-group {object_files}  {compiler.arm.cmsis.ldflags} -Wl,--whole-archive "{archive_file_path}" -Wl,--no-whole-archive -lc -Wl,--end-group -lm -lgcc -lstdc++ --specs=nano.specs
 
 
 ## Create output (.bin file)