C Language Zemi

stdio.h header-standard input / output functions, etc.

The stdio.h header is a header that contains standard I / O functions and so on.

Function to output a character string

• printf function
• fprintf function
• sprintf function
• snprintf function
• putchar function --output one character

Standard input / output

• stdout-a pointer to a FILE structure that means a standard output stream
• stderr-a pointer to a FILE structure that means standard error stream

File input / output

• fopen function-open file
• fclose function-close file
• fgetc function-read one character from a file
• getc function-read one character from a file
• fputc function-write one character to the file stream
• fread function-read from file with specified number of bytes
• fwrite function-write to file by specifying the number of bytes
• EOF-a constant that represents the end of the file
• feof function-check if it is at the end of the file
• fseek function-sets the position of the file stream position specifier
• ftell function-get the position of the file stream position specifier