Check for NULL pointer in Print.write().
Otherwise, trying to print(NULL) or write(NULL) could print a random character. http://code.google.com/p/arduino/issues/detail?id=941
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@ -46,7 +46,10 @@ class Print
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void clearWriteError() { setWriteError(0); }
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void clearWriteError() { setWriteError(0); }
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virtual size_t write(uint8_t) = 0;
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virtual size_t write(uint8_t) = 0;
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size_t write(const char *str) { return write((const uint8_t *)str, strlen(str)); }
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size_t write(const char *str) {
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if (str == NULL) return 0;
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return write((const uint8_t *)str, strlen(str));
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}
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virtual size_t write(const uint8_t *buffer, size_t size);
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virtual size_t write(const uint8_t *buffer, size_t size);
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size_t print(const __FlashStringHelper *);
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size_t print(const __FlashStringHelper *);
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