Lines Matching refs:ch
2246 // isspace(int ch) and friends accept an unsigned char or EOF. char
2251 inline bool IsAlpha(char ch) {
2252 return isalpha(static_cast<unsigned char>(ch)) != 0;
2254 inline bool IsAlNum(char ch) {
2255 return isalnum(static_cast<unsigned char>(ch)) != 0;
2257 inline bool IsDigit(char ch) {
2258 return isdigit(static_cast<unsigned char>(ch)) != 0;
2260 inline bool IsLower(char ch) {
2261 return islower(static_cast<unsigned char>(ch)) != 0;
2263 inline bool IsSpace(char ch) {
2264 return isspace(static_cast<unsigned char>(ch)) != 0;
2266 inline bool IsUpper(char ch) {
2267 return isupper(static_cast<unsigned char>(ch)) != 0;
2269 inline bool IsXDigit(char ch) {
2270 return isxdigit(static_cast<unsigned char>(ch)) != 0;
2272 inline bool IsXDigit(wchar_t ch) {
2273 const unsigned char low_byte = static_cast<unsigned char>(ch);
2274 return ch == low_byte && isxdigit(low_byte) != 0;
2277 inline char ToLower(char ch) {
2278 return static_cast<char>(tolower(static_cast<unsigned char>(ch)));
2280 inline char ToUpper(char ch) {
2281 return static_cast<char>(toupper(static_cast<unsigned char>(ch)));