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moved functions from getline.c into getline.h header file

master
T. Meissner 10 years ago
parent
commit
bd177d26de
1 changed files with 1 additions and 60 deletions
  1. +1
    -60
      c_pointers/getline.c

+ 1
- 60
c_pointers/getline.c View File

@ -1,68 +1,9 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "getline.h"
char *getLine(void);
char *trim(char *phrase);
char *getLine(void) {
const size_t sizeIncrement = 10;
char *buffer = malloc(sizeIncrement);
char *currentPosition = buffer;
size_t maximumLength = sizeIncrement;
size_t length = 0;
int character;
if (currentPosition == NULL) {
return NULL;
}
while (1) {
character =fgetc(stdin);
if (character == '\n') {
break;
}
if (++length >= maximumLength) {
char *newBuffer = (char*) realloc(buffer, maximumLength += sizeIncrement);
if (newBuffer == NULL) {
free(buffer);
return NULL;
}
currentPosition = newBuffer + (currentPosition - buffer);
buffer = newBuffer;
}
*currentPosition++ = character;
}
*currentPosition = '\0';
return buffer;
}
char *trim(char *phrase) {
char *old = phrase;
char *new = phrase;
// skip blank chars
while (*old == ' ') {
old++;
}
while (*old) {
*new = *old;
new++;
old++;
}
// set string end char
*new = 0;
return (char*) realloc(phrase, strlen(phrase) + 1);
}
int main(void) {


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