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d4830dba30
Store the result in an int and do the comparison. This is always safe without using strange constructs like "signed char". wc(1) would go into an infinite loop when executed on an ARM system.
37 lines
576 B
C
37 lines
576 B
C
/* See LICENSE file for copyright and license details. */
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "../utf.h"
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int
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fgetrune(Rune *r, FILE *fp)
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{
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char buf[UTFmax];
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int i = 0, c;
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while (i < UTFmax && (c = fgetc(fp)) != EOF) {
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buf[i++] = c;
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if (charntorune(r, buf, i) > 0)
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break;
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}
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if (ferror(fp))
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return -1;
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return i;
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}
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int
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efgetrune(Rune *r, FILE *fp, const char *file)
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{
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int ret;
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if ((ret = fgetrune(r, fp)) < 0) {
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fprintf(stderr, "fgetrune %s: %s\n", file, strerror(errno));
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exit(1);
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}
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return ret;
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}
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