Scm_SupportedCharacterEncodingP 1274 src/extlib.c SCM_RESULT = Scm_SupportedCharacterEncodingP(encoding); Scm_SupportedCharacterEncodingP 272 src/gauche.h SCM_EXTERN int Scm_SupportedCharacterEncodingP(const char *encoding); Scm_SupportedCharacterEncodingP 1162 src/port.c if (encoding == NULL || Scm_SupportedCharacterEncodingP(encoding)) {