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754c677b0b
Imported from git://git.ozlabs.org/~ccan/ccan init-1161-g661d41f Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
23 lines
369 B
C
23 lines
369 B
C
#define CCAN_STR_DEBUG 1
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#include <ccan/str/str.h>
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int main(int argc, char *argv[])
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{
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#ifdef FAIL
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#if !HAVE_BUILTIN_TYPES_COMPATIBLE_P || !HAVE_TYPEOF
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#error We need typeof to check isalnum.
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#endif
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char
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#else
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unsigned char
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#endif
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c = argv[0][0];
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#ifdef FAIL
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/* Fake fail on unsigned char platforms. */
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BUILD_ASSERT((char)255 < 0);
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#endif
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return isalnum(c);
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}
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