tv899jv/pvjc26
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fixed formatting in code, tweaked sscanf() call

Browse Source
This commit is contained in:
Tomáš Vlček 2026-03-19 21:57:06 +00:00
parent c428710754
commit 9b61b53bdf
1 changed files with 64 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

128
du3/program.c
View File

@ -51,93 +51,93 @@ int main()
//pomocne premeny //pomocne premeny
char line[SIZE], strBuffer[SIZE]; char line[SIZE], strBuffer[SIZE];
line[0] = '\0'; line[0] = '\0';
strBuffer[0] = '\0';
char* strtofEndPtr; char* strtofEndPtr;
int LinesOnInputCount = 0; int LinesOnInputCount = 0;
while (fgets(line, SIZE, stdin) != NULL) while (fgets(line, SIZE, stdin) != NULL)
{ {
(sscanf(line, "%127[^\n]", strBuffer); strBuffer[0] = '\0';
if (strBuffer[0] == '\0') sscanf(line, "%127[^\n]", strBuffer);
if (strBuffer[0] == '\0')
{
printf("CHYBA\n");
continue;
}
bool isLineInvalid = false;
//docasne 'char' premeny
char num1Temp[TEMPBUFFERSIZE], num2Temp[TEMPBUFFERSIZE], resultTemp[TEMPBUFFERSIZE];
num1Temp[0] = '\0';
num2Temp[0] = '\0';
resultTemp[0] = '\0';
bool foundEqualSign = false;
char op1 = 'N'; //N = 'None/NIC'
for (int i = 0; strBuffer[i] != '\0'; i++)
{
bool isNegativeSign = false;
if (isspace(strBuffer[i]) != 0)
{ {
printf("CHYBA\n");
continue; continue;
} }
bool isLineInvalid = false; if (strBuffer[i] == '-')
//docasne 'char' premeny
char num1Temp[TEMPBUFFERSIZE], num2Temp[TEMPBUFFERSIZE], resultTemp[TEMPBUFFERSIZE];
num1Temp[0] = '\0';
num2Temp[0] = '\0';
resultTemp[0] = '\0';
bool foundEqualSign = false;
char op1 = 'N'; //N = 'None/NIC'
for (int i = 0; strBuffer[i] != '\0'; i++)
{ {
bool isNegativeSign = false; //kontrola - zistenie, ze ci znak '-' symbolizuje zapornu hodnotu (-456) alebo arit. operaciu minus
if (isspace(strBuffer[i]) != 0) //zistujeme to na zaklade toho, kde sme v riadku (ak sme na zaciatku num1, num2 alebo vyslednehoCisla, tak sa jedna o minusove znamienko)
if (op1 == 'N' && strlen(num1Temp) == 0)
{ {
continue; isNegativeSign = true;
} }
if (strBuffer[i] == '-') else if (op1 != 'N' && !foundEqualSign && strlen(num2Temp) == 0)
{ {
//kontrola - zistenie, ze ci znak '-' symbolizuje zapornu hodnotu (-456) alebo arit. operaciu minus isNegativeSign = true;
//zistujeme to na zaklade toho, kde sme v riadku (ak sme na zaciatku num1, num2 alebo vyslednehoCisla, tak sa jedna o minusove znamienko)
if (op1 == 'N' && strlen(num1Temp) == 0)
{
isNegativeSign = true;
}
else if (op1 != 'N' && !foundEqualSign && strlen(num2Temp) == 0)
{
isNegativeSign = true;
}
else if (foundEqualSign && strlen(resultTemp) == 0)
{
isNegativeSign = true;
}
} }
if (isdigit(strBuffer[i]) != 0 || strBuffer[i] == '.' || isNegativeSign) else if (foundEqualSign && strlen(resultTemp) == 0)
{ {
//cislo sa bude zapisovat podla toho, kde sme pri citani riadku... isNegativeSign = true;
//ak nenasiel ani arit. znamienko = cislo patri ku prvemu operandu (num1)
//ak nasiel arit. znamienko ale NIE este symbol '=', tak cislo patri ku druhemu operandu (num2)
//inak ak ma vsetko, tak zvysne nacitane cisla z riadku mozu byt vyluc. metodou len sucastou vysledku
if (op1 == 'N')
{
strncat(num1Temp, &strBuffer[i], 1);
}
else if (!foundEqualSign)
{
strncat(num2Temp, &strBuffer[i], 1);
}
else
{
strncat(resultTemp, &strBuffer[i], 1);
}
} }
else if (strBuffer[i] == '=') }
if (isdigit(strBuffer[i]) != 0 || strBuffer[i] == '.' || isNegativeSign)
{
//cislo sa bude zapisovat podla toho, kde sme pri citani riadku...
//ak nenasiel ani arit. znamienko = cislo patri ku prvemu operandu (num1)
//ak nasiel arit. znamienko ale NIE este symbol '=', tak cislo patri ku druhemu operandu (num2)
//inak ak ma vsetko, tak zvysne nacitane cisla z riadku mozu byt vyluc. metodou len sucastou vysledku
if (op1 == 'N')
{ {
foundEqualSign = true; strncat(num1Temp, &strBuffer[i], 1);
continue;
} }
else if (!foundEqualSign)
else if (strBuffer[i] == '+' || strBuffer[i] == '-' || strBuffer[i] == '/' || strBuffer[i] == '*')
{ {
//predbezna kontrola, ak uz operator mame tak vyhod chybu pri druhom pokuse o nacitanie strncat(num2Temp, &strBuffer[i], 1);
//taktiez, ak sa nasiel minusovy znak tu tak to moze byt len arit. znamienko
if (op1 != 'N')
{
isLineInvalid = true;
}
op1 = strBuffer[i];
} }
else else
{ {
isLineInvalid = true; strncat(resultTemp, &strBuffer[i], 1);
break;
} }
}
else if (strBuffer[i] == '=')
{
foundEqualSign = true;
continue;
}
} else if (strBuffer[i] == '+' || strBuffer[i] == '-' || strBuffer[i] == '/' || strBuffer[i] == '*')
{
//predbezna kontrola, ak uz operator mame tak vyhod chybu pri druhom pokuse o nacitanie
//taktiez, ak sa nasiel minusovy znak tu tak to moze byt len arit. znamienko
if (op1 != 'N')
{
isLineInvalid = true;
}
op1 = strBuffer[i];
}
else
{
isLineInvalid = true;
break;
}
}
float num1 = strtof(num1Temp, &strtofEndPtr); float num1 = strtof(num1Temp, &strtofEndPtr);
float num2 = strtof(num2Temp, &strtofEndPtr); float num2 = strtof(num2Temp, &strtofEndPtr);