Andrew Kesterson
11d21068df
Replace the consumer-sized status-name array with private sparse storage and accept arbitrary integer status values. Add explicit range reservations with overlap diagnostics, reserve the library's 0-255 compatibility band, and harden pointer and string boundary handling. Update regression coverage and document the required migration for custom status-code consumers.
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
#include "akerror.h"
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#include "err_capture.h"
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#include <errno.h>
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/*
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* The library imports system errno codes and their descriptions at build time
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* (scripts/generrno.sh -> akerr_init_errno). Verify:
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* - a system errno (EACCES) has a registered, non-empty name;
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* - an unregistered status returns the "Unknown Error" sentinel;
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* - a system errno can be raised, propagated and handled like any AKERR_* code.
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*/
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static int handled = 0;
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akerr_ErrorContext *boom(void)
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{
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PREPARE_ERROR(e);
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FAIL_RETURN(e, EACCES, "permission denied");
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}
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int main(void)
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{
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akerr_capture_install();
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akerr_init();
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char *nm = akerr_name_for_status(EACCES, NULL);
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AKERR_CHECK(nm != NULL);
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AKERR_CHECK(nm[0] != '\0');
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AKERR_CHECK(strcmp(nm, "Unknown Error") != 0);
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AKERR_CHECK(strcmp(akerr_name_for_status(1000000, NULL),
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"Unknown Error") == 0);
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PREPARE_ERROR(e);
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ATTEMPT {
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CATCH(e, boom());
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} CLEANUP {
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} PROCESS(e) {
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} HANDLE(e, EACCES) {
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AKERR_CHECK_STATUS(e, EACCES);
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handled = 1;
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} FINISH_NORETURN(e);
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AKERR_CHECK(handled == 1);
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AKERR_CHECK(akerr_slots_in_use() == 0);
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fprintf(stderr, "err_errno ok (EACCES name: \"%s\")\n", nm);
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return 0;
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}
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