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Redesigned TextToInteger()

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Ray 2020-01-24 17:58:19 +01:00
parent fa0d5bbf9e
commit 7ae426c377
1 changed files with 9 additions and 10 deletions
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19
src/text.c
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@ -1396,22 +1396,21 @@ const char *TextToPascal(const char *text)
} }
// Get integer value from text // Get integer value from text
// NOTE: Negative values not supported // NOTE: This function replaces atoi() [stdlib.h]
int TextToInteger(const char *text) int TextToInteger(const char *text)
{ {
int result = 0; int value = 0;
int len = strlen(text); int sign = 1;
int units = 1;
for (int i = len - 1; i >= 0; i--) if ((text[0] == '+') || (text[0] == '-'))
{ {
if ((text[i] > 47) && (text[i] < 58)) result += ((int)text[i] - 48)*units; if (text[0] == '-') sign = -1;
else { result = -1; break; } text++;
units *= 10;
} }
return result; for (int i = 0; ((text[i] >= '0') && (text[i] <= '9')); ++i) value = value*10 + (int)(text[i] - '0');
return value*sign;
} }
// Encode text codepoint into utf8 text (memory must be freed!) // Encode text codepoint into utf8 text (memory must be freed!)