Fix String::clear() not clearing the string properly
Fixes: https://github.com/espressif/arduino-esp32/issues/4893
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6e7cc5210d
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@ -130,9 +130,9 @@ String::~String() {
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inline void String::init(void) {
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setSSO(false);
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setBuffer(nullptr);
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setCapacity(0);
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setLen(0);
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setBuffer(nullptr);
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}
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void String::invalidate(void) {
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@ -301,9 +301,19 @@ class String {
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inline unsigned int len() const { return isSSO() ? sso.len : ptr.len; }
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inline unsigned int capacity() const { return isSSO() ? (unsigned int)SSOSIZE - 1 : ptr.cap; } // Size of max string not including terminal NUL
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inline void setSSO(bool set) { sso.isSSO = set; }
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inline void setLen(int len) { if (isSSO()) sso.len = len; else ptr.len = len; }
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inline void setLen(int len) {
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if (isSSO()) {
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sso.len = len;
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sso.buff[len] = 0;
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} else {
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ptr.len = len;
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if (ptr.buff) {
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ptr.buff[len] = 0;
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}
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}
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}
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inline void setCapacity(int cap) { if (!isSSO()) ptr.cap = cap; }
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inline void setBuffer(char *buff) { if (!isSSO()) ptr.buff = buff; }
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inline void setBuffer(char *buff) { if (!isSSO()) ptr.buff = buff; }
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// Buffer accessor functions
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inline const char *buffer() const { return (const char *)(isSSO() ? sso.buff : ptr.buff); }
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inline char *wbuffer() const { return isSSO() ? const_cast<char *>(sso.buff) : ptr.buff; } // Writable version of buffer
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