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 30561-4f4869c0e7) Lines: 1467 1530 95.9 % Date: 2025-11-28 09:21:39 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	5390
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15274
_sqrtnr	22709
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35901
ZX_realroots_irred	48651
realroots	50627
ZX_sturm_irred	116776
ZX_sturm_i	123171
polsolve	166725
split_pols	166726
splitcauchy	166731
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267060
QX_complex_roots	296413
_gen_zero	326149
fix_roots1	398469
conformal_mapping	467922
split_1	467922
split_0_1	468284
split_0_2	468285
logradius	493972
split_2	493972
update_radius	493972
parameters	493974
optimize_split	493977
split_fromU	493977
split_0	494333
refine_F	502359
dft	502365
all_roots	536122
clean_roots	536167
fix_roots	537224
a_posteriori_errors	537226
mygprec_special	537231
logpre_modulus	606758
logmodulus	606760
abs_update_r	778653
ind_maxlog2	902656
isexactscalar	931714
isreal	961899
initdft	996339
dual_modulus	1012463
usp	1126031
ZX_sturmpart	1128236
check_ab	1178863
tocomplex	1213951
isvalidcoeff	1230235
ZX_Uspensky	1313883
conformal_basecase	1403882
conformal_pol	1404003
fujiwara_bound_real	1406914
split_complete	1525892
homothetie	1610095
append_clone	1614180
logmin_modulus	1614790
root_error	1912576
mygprecrc_special	2179187
ZX_rescale2prim	2233693
cmp_complex_appr	2238515
fujiwara_bound	2271780
checkbound	2354856
refine_H	2460487
scalepol	4289370
mygprec_absolute	4339958
_mp_mul	4374509
logmax_modulus	4450883
bkeval_single_power	5235700
splitpoleval	5235870
newton_polygon	5507229
X2XP1	5990176
_mp_sqr	6298300
dblexp	6549023
quicktofp	6979044
RgX_gtofp_bit	7031612
abs_update	8005508
mydbllogr	9547094
homothetie2n	9957722
_gen_nored	11202918
eval_rel_pol	13138260
fft	14159770
_gen_one	14473573
ZX_to_ZiX	16458546
pol_to_gaussint	17589054
_mp_add	24663463
_mp_cmul	34769096
myshiftrc	35506281
homothetie_gauss	36497718
lower_bound	40953380
findpower	40954174
graeffe	49506659
mydbllog2r	56183006
mygprec	63756293
ZiX_sqr	99025468
myshiftic	135809451
mygprecrc	215196817
mydbllog2i	226414021
dbllog2	302086121

Generated by: LCOV version 1.16