64 lines
1.2 KiB
C
64 lines
1.2 KiB
C
#include <std/string.h>
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s32 string_first_ch(String string, u8 ch)
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{
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s32 result = -1;
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for (u64 i = 0; i < string.length; i += 1)
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{
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if (string.pointer[i] == ch)
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{
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result = i;
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break;
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}
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}
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return result;
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}
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s64 string_last_ch(String string, u8 ch)
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{
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s64 result = -1;
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u64 i = string.length;
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while (i > 0)
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{
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i -= 1;
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if (string.pointer[i] == ch)
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{
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result = cast_to(s64, u64, i);
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break;
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}
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}
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return result;
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}
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u8 string_starts_with(String string, String start)
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{
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u8 result = 0;
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if (likely(start.length <= string.length))
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{
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if (unlikely(start.pointer == string.pointer))
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{
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result = 1;
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}
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else
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{
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u64 i;
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for (i = 0; i < start.length; i += 1)
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{
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auto start_ch = start.pointer[i];
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auto string_ch = string.pointer[i];
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if (unlikely(string_ch != start_ch))
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{
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break;
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}
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}
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result = i == start.length;
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}
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}
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return result;
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}
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