I know everybody has told me to use fgets and not gets because of buffer overflow. However, I am a bit confused about the third parameter in fgets(). As I understand it, fgets is dependent on: char * fgets ( char * str, int num, FILE * stream ); char* str is the ptr to where my input will be stored. num is the max number of character to be read.

2014年2月26日 · @johngonidelis a string is stored as a series of the ascii value of the characters, with a single character at the end with the binary value '0'. strlen() only counts the actual letters, but when you lay out space for your own string, you …

2015年7月10日 · Second, when using fgets(), the result is slightly wrong because apparently fgets() function reads newline (ASCII value 10) character last which screws up the result. Third, when using scanf() function, the result is completely wrong because first character apparently has a -52 ASCII value. For this, I have no explanation.

2017年1月28日 · I'm new at programming so there are some basics and maybe common sense that I don't know. I have a question about how to use fgets right. Based on the explanation of fgets, it seems that fgets should stop whenever it reads n-1 characters, hit the EOF or hit a newline character. For example, I create a text file like below:

2012年7月21日 · Another clear difference is the return value: fgets return a pointer to dest on success; scanf return the number of input items successefully matched and assigned. Then, the scanf function scans input according to format , and reads input from the standard input stream stdin , while fgets reads input from FILE * stream as default.

The fgets function reads at most one less than the number of characters specified by n from the stream pointed to by stream into the array pointed to by s. No additional characters are read after a new-line character (which is retained) or after end-of-file.

2014年2月10日 · fgets() reads in at most one less than size characters from stream and stores them into the buffer pointed to by s. Reading stops after an EOF or a newline. If a newline is read, it is stored into the buffer.

2013年8月15日 · In short, fgets will read until the first new line, maximum bytes to read at once, or EOF, which ever is sent first whereas fread will read a specific number of words (where I define a word as a chunk of bytes, say groups of 4 bytes) and stop when that limit has been reached or 0 bytes have been read (typically means EOF or error).

2015年6月13日 · Former: if fgets string does not terminate with a newline (before the nul of course) keep reading with getchar until newline or EOF. Latter: use allocated buffers and realloc if the input did not contain a final newline .

2014年4月30日 · 7.21.7.2 The fgets function. Synopsis. #include <stdio.h> char *fgets(char * restrict s, int n, FILE * restrict stream); Description. The fgets function reads at most one less than the number of characters specified by n from the stream pointed to by stream into the array pointed to by s. No additional characters are read after a new-line ...