Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30391-f41a6adeb0) Lines: 1467 1530 95.9 % Date: 2025-07-14 09:22:41 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
_intervalcmp	0
_mp_sub	0
scalepol2n	0
ZX_Uspensky_equal_yes	14
polgraeffe	14
ZX_Uspensky_no	21
ZX_Uspensky_equal	28
rootsdeg0	42
FFT	56
FFTinv	56
polmod_to_embed	84
FFT_i	98
sol_ok	3378
ZX_graeffe	5383
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15274
_sqrtnr	22709
polrootsbound_i	27293
polrootsbound	27299
RgX_normalize1	35886
ZX_realroots_irred	48622
realroots	50627
ZX_sturm_irred	116760
ZX_sturm_i	123155
polsolve	166633
split_pols	166634
splitcauchy	166640
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266940
QX_complex_roots	290015
_gen_zero	325981
fix_roots1	394080
conformal_mapping	467793
split_1	467793
split_0_1	468113
split_0_2	468114
logradius	493833
update_radius	493836
split_2	493837
optimize_split	493839
parameters	493839
split_fromU	493839
split_0	494160
refine_F	502222
dft	502227
all_roots	529606
clean_roots	529654
fix_roots	530651
a_posteriori_errors	530652
mygprec_special	530656
logmodulus	606600
logpre_modulus	606603
abs_update_r	778405
ind_maxlog2	902413
isexactscalar	931280
isreal	961630
initdft	996064
dual_modulus	1012179
usp	1125932
ZX_sturmpart	1128187
check_ab	1178814
tocomplex	1201005
isvalidcoeff	1229668
ZX_Uspensky	1313793
conformal_basecase	1403487
conformal_pol	1403607
fujiwara_bound_real	1406795
split_complete	1518974
append_clone	1603020
homothetie	1609662
logmin_modulus	1614415
root_error	1899182
mygprecrc_special	2161029
cmp_complex_appr	2231686
ZX_rescale2prim	2233673
fujiwara_bound	2265026
checkbound	2354758
refine_H	2459785
scalepol	4288154
mygprec_absolute	4300339
_mp_mul	4373429
logmax_modulus	4449816
splitpoleval	5223355
bkeval_single_power	5223464
newton_polygon	5505774
X2XP1	5990055
_mp_sqr	6291935
dblexp	6547398
quicktofp	6961023
RgX_gtofp_bit	7023370
abs_update	8003583
mydbllogr	9544760
homothetie2n	9955227
_gen_nored	11174753
eval_rel_pol	13134912
fft	14156899
_gen_one	14442614
ZX_to_ZiX	16455984
pol_to_gaussint	17584638
_mp_add	24649245
_mp_cmul	34727021
myshiftrc	35499645
homothetie_gauss	36489852
lower_bound	40946675
findpower	40946804
graeffe	49492805
mydbllog2r	56780781
mygprec	63700367
ZiX_sqr	99010147
myshiftic	135770901
mygprecrc	215000511
mydbllog2i	226322219
dbllog2	302603080

Generated by: LCOV version 1.16