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return final \0 directly from readLine()

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This commit is contained in:
Yann Collet
2019-10-28 15:03:32 -07:00
parent d7f258d845
commit d9c634e13b
2 changed files with 12 additions and 9 deletions
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13
programs/util.c
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@ -214,14 +214,18 @@ U64 UTIL_getTotalFileSize(const char* const * fileNamesTable, unsigned nbFiles)
/* condition : @file must be valid, and not have reached its end.
* @return : length of line written into buf, without the final '\n',
* @return : length of line written into @buf, ended with `\0` instead of '\n',
* or 0, if there is no new line */
static size_t readLineFromFile(char* buf, size_t len, FILE* file)
{
assert(!feof(file));
CONTROL( fgets(buf, (int) len, file) == buf ); /* requires success */
if (strlen(buf)==0) return 0;
return strlen(buf) - (buf[strlen(buf)-1] == '\n'); /* ignore final '\n' character */
{ size_t linelen = strlen(buf);
if (strlen(buf)==0) return 0;
if (buf[linelen-1] == '\n') linelen--;
buf[linelen] = '\0';
return linelen+1;
}
}
/* Conditions :
@ -250,8 +254,7 @@ readLinesFromFile(void* dst, size_t dstCapacity,
size_t const lineLength = readLineFromFile(buf+pos, dstCapacity-pos, inputFile);
if (lineLength == 0) break;
assert(pos + lineLength < dstCapacity);
buf[pos+lineLength] = '\0'; /* replace '\n' with '\0'*/
pos += lineLength + 1;
pos += lineLength;
++nbFiles;
}