33 static int AppendChar(char **buff, const char *buff_end, char c) {  in AppendChar()  argument
34   if (*buff < buff_end) {  in AppendChar()
35     **buff = c;  in AppendChar()
36     (*buff)++;  in AppendChar()
44 static int AppendNumber(char **buff, const char *buff_end, u64 absolute_value,  in AppendNumber()  argument
56     result += AppendChar(buff, buff_end, '-');  in AppendNumber()
74     result += AppendChar(buff, buff_end, c);  in AppendNumber()
76   if (negative && !pad_with_zero) result += AppendChar(buff, buff_end, '-');  in AppendNumber()
79     result += AppendChar(buff, buff_end, (digit < 10) ? '0' + digit  in AppendNumber()
85 static int AppendUnsigned(char **buff, const char *buff_end, u64 num, u8 base,  in AppendUnsigned()  argument
87   return AppendNumber(buff, buff_end, num, base, minimal_num_length,  in AppendUnsigned()
91 static int AppendSignedDecimal(char **buff, const char *buff_end, s64 num,  in AppendSignedDecimal()  argument
94   return AppendNumber(buff, buff_end, (u64)(negative ? -num : num), 10,  in AppendSignedDecimal()
98 static int AppendString(char **buff, const char *buff_end, int precision,  in AppendString()  argument
106     result += AppendChar(buff, buff_end, *s);  in AppendString()
111 static int AppendPointer(char **buff, const char *buff_end, u64 ptr_value) {  in AppendPointer()  argument
113   result += AppendString(buff, buff_end, -1, "0x");  in AppendPointer()
114   result += AppendUnsigned(buff, buff_end, ptr_value, 16,  in AppendPointer()
119 int VSNPrintf(char *buff, int buff_length,  in VSNPrintf()  argument
125   const char *buff_end = &buff[buff_length - 1];  in VSNPrintf()
130       result += AppendChar(&buff, buff_end, *cur);  in VSNPrintf()
162         result += AppendSignedDecimal(&buff, buff_end, dval, width,  in VSNPrintf()
171         result += AppendUnsigned(&buff, buff_end, uval,  in VSNPrintf()
177         result += AppendPointer(&buff, buff_end, va_arg(args, uptr));  in VSNPrintf()
182         result += AppendString(&buff, buff_end, precision, va_arg(args, char*));  in VSNPrintf()
187         result += AppendChar(&buff, buff_end, va_arg(args, int));  in VSNPrintf()
192         result += AppendChar(&buff, buff_end, '%');  in VSNPrintf()
200   RAW_CHECK(buff <= buff_end);  in VSNPrintf()
201   AppendChar(&buff, buff_end + 1, '\0');  in VSNPrintf()