114 lines
3.0 KiB
C
114 lines
3.0 KiB
C
/*
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* Test <stdio.h> features from C99.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdarg.h>
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int mysscanf(const char *restrict str, const char *restrict fmt, ...);
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int mysnprintf(char *restrict str, size_t n, const char *restrict fmt, ...);
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int main(void) {
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char s[100] = "abcdef";
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// snprintf tests
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if (snprintf(0, 0, "123") != 3)
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goto Fail;
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if (snprintf(s, 0, "123") != 3)
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goto Fail;
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if (memcmp(s, "abcdef", 6) != 0)
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goto Fail;
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if (snprintf(s, 1, "123") != 3)
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goto Fail;
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if (memcmp(s, "\0bcdef", 6) != 0)
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goto Fail;
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if (snprintf(s, 3, "123") != 3)
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goto Fail;
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if (memcmp(s, "12\0def", 6) != 0)
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goto Fail;
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if (snprintf(s, 4, "123") != 3)
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goto Fail;
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if (memcmp(s, "123\0ef", 6) != 0)
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goto Fail;
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s[0] = 'x';
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if (snprintf(s, 0x10000, "123") != 3)
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goto Fail;
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if (memcmp(s, "123\0ef", 6) != 0)
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goto Fail;
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// new length modifiers for printf
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signed char sc[2] = {-123, 42};
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unsigned long long ull = 0x2134123412341234;
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uintmax_t uim = 12345678901234567890u;
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size_t sz = 012345;
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ptrdiff_t pd = -12345;
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double d = 123.456;
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mysnprintf(s, 100, "%hhi %#llx %ju %zo %td %lf",
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sc[0], ull, uim, sz, pd, d);
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if (strcmp(s, "-123 0x2134123412341234 12345678901234567890 12345 -12345 123.456000") != 0)
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goto Fail;
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sc[0] = 0;
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ull = 0;
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uim = 0;
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sz = 0;
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pd = 0;
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d = 0;
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// new length modifiers for scanf
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if (mysscanf(s, "%hhi %llx %ju %zo %td %lf",
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&sc[0], &ull, &uim, &sz, &pd, &d) != 6)
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goto Fail;
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if (sc[0] != -123)
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goto Fail;
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if (ull != 0x2134123412341234)
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goto Fail;
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if (uim != 12345678901234567890u)
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goto Fail;
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if (sz != 012345)
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goto Fail;
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if (pd != -12345)
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goto Fail;
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if (d != (double)123.456)
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goto Fail;
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if (sc[1] != 42)
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goto Fail;
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printf ("Passed Conformance Test c99stdio\n");
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return 0;
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Fail:
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printf ("Failed Conformance Test c99stdio\n");
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}
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int mysscanf(const char *restrict str, const char *restrict fmt, ...) {
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va_list va;
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int ret;
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// vsscanf function
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va_start(va, fmt);
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ret = vsscanf(str, fmt, va);
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va_end(va);
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return ret;
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}
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int mysnprintf(char *restrict str, size_t n, const char *restrict fmt, ...) {
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va_list va;
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int ret;
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// vsnprintf function
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va_start(va, fmt);
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ret = vsnprintf(str, n, fmt, va);
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va_end(va);
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return ret;
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}
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