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1.1 ! root 1: ! 2: ! 3: write() COHERENT System Call write() ! 4: ! 5: ! 6: ! 7: ! 8: Write to a file ! 9: ! 10: iinntt wwrriittee(_f_d, _b_u_f_f_e_r, _n) ! 11: iinntt _f_d; cchhaarr *_b_u_f_f_e_r; iinntt _n; ! 12: ! 13: write writes n bytes of data, beginning at address buffer, into ! 14: the file associated with the file descriptor fd. Writing begins ! 15: at the current write position, as set by the last call to either ! 16: write or lseek. write advances the position of the file pointer ! 17: by the number of characters written. ! 18: ! 19: ***** Example ***** ! 20: ! 21: For an example of how to use this function, see the entry for ! 22: open. ! 23: ! 24: ***** See Also ***** ! 25: ! 26: COHERENT system calls, STDIO ! 27: ! 28: ***** Diagnostics ***** ! 29: ! 30: write returns -1 if an error occurred before the write operation ! 31: commenced, such as a bad file descriptor fd or invalid buffer ! 32: pointer. Otherwise, it returns the number of bytes written. It ! 33: should be considered an error if this number is not the same as ! 34: n. ! 35: ! 36: ***** Notes ***** ! 37: ! 38: write is a low-level call that passes data directly to COHERENT. ! 39: It should not be mixed with high-level calls, such as fread, ! 40: fwrite, or fopen. ! 41: ! 42: ! 43: ! 44: ! 45: ! 46: ! 47: ! 48: ! 49: ! 50: ! 51: ! 52: ! 53: ! 54: ! 55: ! 56: ! 57: ! 58: ! 59: ! 60: ! 61: ! 62: ! 63: ! 64: COHERENT Lexicon Page 1 ! 65: ! 66:
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