Qu'est-ce qu'une chaîne littérale en langage C ?

Char * str = "hi, hello"; /* string literal */

char a1[] = "xyz"; /* a1 is char[4] holding {'x','y','z','\0'} */ char a2[4] = "xyz"; /* same as a1 */ char a3[3] = "xyz"; /* a1 is char[3] holding {'x,'y','z'}, missing the '\0' */

char* s = "welcome"; s[0] = 'W'; /* undefined behaviour */

char const* s1 = "welcome"; s1[0] = 'W'; /* compiler error! */

/* normal string literal, of type char[] */ char* s1 = "abc"; /* UTF-8 string literal, of type char[] */ char* s3 = u8"abc"; /* 16-bit wide string literal, of type char16x[] */ char16x* s4 = u"abc"; /* 32-bit wide string literal, of type char32x[] */ char32x* s5 = U"abc";