30 static int AppendChar(char **buff, const char *buff_end, char c) {  in AppendChar()  argument
31   if (*buff < buff_end) {  in AppendChar()
32     **buff = c;  in AppendChar()
33     (*buff)++;  in AppendChar()
41 static int AppendNumber(char **buff, const char *buff_end, u64 absolute_value,  in AppendNumber()  argument
53     result += AppendChar(buff, buff_end, '-');  in AppendNumber()
71     result += AppendChar(buff, buff_end, c);  in AppendNumber()
73   if (negative && !pad_with_zero) result += AppendChar(buff, buff_end, '-');  in AppendNumber()
77     result += AppendChar(buff, buff_end, digit);  in AppendNumber()
82 static int AppendUnsigned(char **buff, const char *buff_end, u64 num, u8 base,  in AppendUnsigned()  argument
85   return AppendNumber(buff, buff_end, num, base, minimal_num_length,  in AppendUnsigned()
89 static int AppendSignedDecimal(char **buff, const char *buff_end, s64 num,  in AppendSignedDecimal()  argument
92   return AppendNumber(buff, buff_end, (u64)(negative ? -num : num), 10,  in AppendSignedDecimal()
103 static int AppendString(char **buff, const char *buff_end, int width,  in AppendString()  argument
111     result += AppendChar(buff, buff_end, *s);  in AppendString()
115     result += AppendChar(buff, buff_end, ' ');  in AppendString()
119 static int AppendPointer(char **buff, const char *buff_end, u64 ptr_value) {  in AppendPointer()  argument
121   result += AppendString(buff, buff_end, 0, -1, "0x");  in AppendPointer()
122   result += AppendUnsigned(buff, buff_end, ptr_value, 16,  in AppendPointer()
128 int VSNPrintf(char *buff, int buff_length,  in VSNPrintf()  argument
135   const char *buff_end = &buff[buff_length - 1];  in VSNPrintf()
140       result += AppendChar(&buff, buff_end, *cur);  in VSNPrintf()
177         result += AppendSignedDecimal(&buff, buff_end, dval, width,  in VSNPrintf()
189         result += AppendUnsigned(&buff, buff_end, uval, (*cur == 'u') ? 10 : 16,  in VSNPrintf()
195         result += AppendPointer(&buff, buff_end, va_arg(args, uptr));  in VSNPrintf()
202         result += AppendString(&buff, buff_end, left_justified ? -width : width,  in VSNPrintf()
208         result += AppendChar(&buff, buff_end, va_arg(args, int));  in VSNPrintf()
213         result += AppendChar(&buff, buff_end, '%');  in VSNPrintf()
221   RAW_CHECK(buff <= buff_end);  in VSNPrintf()
222   AppendChar(&buff, buff_end + 1, '\0');  in VSNPrintf()