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printf: Show which format specifier is unknown

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apio 2022-10-30 18:08:29 +01:00
parent d186d573dd
commit 948361bec5
1 changed files with 6 additions and 1 deletions
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7
libs/libc/src/printf.cpp
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@ -4,6 +4,7 @@
#include <stddef.h> #include <stddef.h>
#include <stdint.h> #include <stdint.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
#include <string.h> #include <string.h>
#include <sys/syscall.h> #include <sys/syscall.h>
#include <unistd.h> #include <unistd.h>
@ -237,7 +238,11 @@ static int internal_printf(const char* format, PutString put_string_callback, ss
break; break;
} }
default: { default: {
NOT_IMPLEMENTED("internal_printf: unknown format specifier"); fputs("printf: unknown format specifier ", stderr);
fputc('%', stderr);
fputc(current_char, stderr);
fputc('\n', stderr);
abort();
} }
} }
} }