llvm-for-llvmta/tools/clang/test/Analysis/std-c-library-functions-eof.c

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2022-04-25 13:02:35 +02:00
// RUN: %clang_analyze_cc1 -analyzer-checker=core,apiModeling.StdCLibraryFunctions,debug.ExprInspection -verify -analyzer-config eagerly-assume=false %s
// RUN: %clang_analyze_cc1 -triple i686-unknown-linux -analyzer-checker=core,apiModeling.StdCLibraryFunctions,debug.ExprInspection -verify -analyzer-config eagerly-assume=false %s
// RUN: %clang_analyze_cc1 -triple x86_64-unknown-linux -analyzer-checker=core,apiModeling.StdCLibraryFunctions,debug.ExprInspection -verify -analyzer-config eagerly-assume=false %s
// RUN: %clang_analyze_cc1 -triple armv7-a15-linux -analyzer-checker=core,apiModeling.StdCLibraryFunctions,debug.ExprInspection -verify -analyzer-config eagerly-assume=false %s
// RUN: %clang_analyze_cc1 -triple thumbv7-a15-linux -analyzer-checker=core,apiModeling.StdCLibraryFunctions,debug.ExprInspection -verify -analyzer-config eagerly-assume=false %s
void clang_analyzer_eval(int);
typedef struct FILE FILE;
// Unorthodox EOF value.
#define EOF (-2)
int getc(FILE *);
void test_getc(FILE *fp) {
int x;
while ((x = getc(fp)) != EOF) {
clang_analyzer_eval(x > 255); // expected-warning{{FALSE}}
clang_analyzer_eval(x >= 0); // expected-warning{{TRUE}}
}
int y = getc(fp);
if (y < 0) {
clang_analyzer_eval(y == -2); // expected-warning{{TRUE}}
}
}