Demo entry 6333159

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Submitted by anonymous on Dec 03, 2016 at 09:49
Language: Java. Code size: 1.8 kB.

// UTF-8 String (encoded to 1-3 byte, backward compatible with 7-bit ASCII)
// Can be mapped to null-terminated char-array C-string
const char * GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy);
   // Returns a pointer to an array of bytes representing the string in modified UTF-8 encoding.
void ReleaseStringUTFChars(JNIEnv *env, jstring string, const char *utf);
   // Informs the VM that the native code no longer needs access to utf.
jstring NewStringUTF(JNIEnv *env, const char *bytes);
   // Constructs a new java.lang.String object from an array of characters in modified UTF-8 encoding.
jsize GetStringUTFLength(JNIEnv *env, jstring string);
   // Returns the length in bytes of the modified UTF-8 representation of a string.
void GetStringUTFRegion(JNIEnv *env, jstring str, jsize start, jsize length, char *buf);
   // Translates len number of Unicode characters beginning at offset start into modified UTF-8 encoding 
   // and place the result in the given buffer buf.
  
// Unicode Strings (16-bit character)
const jchar * GetStringChars(JNIEnv *env, jstring string, jboolean *isCopy);
   // Returns a pointer to the array of Unicode characters
void ReleaseStringChars(JNIEnv *env, jstring string, const jchar *chars);
   // Informs the VM that the native code no longer needs access to chars.
jstring NewString(JNIEnv *env, const jchar *unicodeChars, jsize length);
   // Constructs a new java.lang.String object from an array of Unicode characters.
jsize GetStringLength(JNIEnv *env, jstring string);
   // Returns the length (the count of Unicode characters) of a Java string.
void GetStringRegion(JNIEnv *env, jstring str, jsize start, jsize length, jchar *buf);
   // Copies len number of Unicode characters beginning at offset start to the given buffer buf

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