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Save some PROGMEM with constexpr (#11798)

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When possible, make `active_extruder` a `constexpr` to save some PROGMEM.
This commit is contained in:
Scott Lahteine
2018-09-10 23:09:26 -05:00
committed by GitHub
parent 4f883d5971
commit d882717d98
9 changed files with 43 additions and 25 deletions
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7
Marlin/src/module/motion.h
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@ -76,7 +76,12 @@ extern float feedrate_mm_s;
extern int16_t feedrate_percentage;
#define MMS_SCALED(MM_S) ((MM_S)*feedrate_percentage*0.01f)
extern uint8_t active_extruder;
// The active extruder (tool). Set with T<extruder> command.
#if EXTRUDERS > 1
extern uint8_t active_extruder;
#else
constexpr uint8_t active_extruder = 0;
#endif
#if HAS_HOTEND_OFFSET
extern float hotend_offset[XYZ][HOTENDS];