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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30748-2ce22a5f1f) Lines: 1881 2002 94.0 % Date: 2026-03-18 09:25:54 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	126
divRq	301
mulqq	1127
addRq	1302
mulRq	2387
divTp	3674
addsub_polmod	7210
ser_normalize	7658
quad_polmod_conj	18403
quad_polmod_norm	18403
div_scal_ser	19096
div_rfrac_scal	32435
div_polmod_same	37016
sqr_ser_part	113907
mul_gen_rfrac	161376
inv_polmod	189769
fix_rfrac	206780
Q_to_Fp	226838
div_rfrac_pol	260657
mul_ser_scal	323974
div_intmod_same	341549
gconj	390604
add_ser_scal	417278
sqr_polmod	419392
div_ser	875766
sub_intmod_same	1017828
div_scal_rfrac	1052280
div_rfrac	1187496
divpT	1204910
div_ser_scal	1543591
gdivgunextu	1583803
Qdivis	1762584
mul_polmod	2674945
divRc	2885727
mul_intmod_same	2985232
mulcxmI	2985886
add_rfrac	3017228
mul_polmod_scal	3219558
gsubsg	3267099
add_intmod_same	3410736
ser_add	4094149
addQp	4763000
mulTp	4985881
mulcxpowIs	5563564
quad_polmod_mul	5860237
pol2ser	6378555
div_T_scal	7293120
mul_self_scal	7669128
mul_rfrac	7910194
_serprec	8187500
mul_polmod_same	8532791
add_rfrac_scal	8823769
rfrac_denom_mul_scal	9852085
mul_rfrac_scal	10435434
mulcIR	11892180
divpp	13212334
gdivgs	13375053
addsub_polmod_scal	13457868
addsub_frac_i	14154030
div_scal_pol	14531927
setfrac	15036250
div_scal_T	15557229
mulcxI	15654883
mulpp	17505470
addsub_pp	19974103
divcR	23426056
mkpadic_mod	24593692
add_scal	29398611
conj_i	31553103
mulrfrac	38071888
ginv	38280890
gred_rfrac2	39473628
addsub_frac	40739281
Leading_is_neg	57628765
gred_rfrac_simple	57631881
gdivgu	61804567
utoi_sign	65016377
Qdivii	143051708
gmul2n	146040794
Qdiviu	151407541
transtype	154217663
mul_scal	197839870
divrunextu	213478788
gmulsg	242478754
gaddsg	270811770
mulcc	281541444
gmulug	283938432
addRc	310642887
mulRc	355419603
gdiv	452839773
gsqr	1343261499
gsub	2898239222
gadd	6244374214
gmul	8957544170

Generated by: LCOV version 1.16