The Standard Library contains functions which fall into two classes: high-level I/O and convenience. The high-level I/O functions provide facilities that are normally considered part of the definition of other languages; for example, the FORMAT "statement" of Fortran. In addition, automatic buffering of I/O channels improves the speed of file access because fewer system calls are necessary. &atofref; &fcloseref; &feofref; &findstrref; &fopenref; &freadref; &fseekref; &getcref; &getsref; &isalpharef; &l3tolref; &longjmpref; &mallocref; &mktempref; &printfref; &putcref; &putsref; &qsortref; &scanfref; &setbufref; &sleepref; &strcatref; &systemref; &toupperref; &ungetcref;